a very easy to generate texture that looks fine. - article / HN

ce qui agace en sous -jaccent les métaleux, rôlistes, geeks et amoureux des comics des années 90/2000 et avant etc, c’est le fait d’avoir “payé” socialement pour leurs gouts une forme de méprise et de rejet et même de moquerie et en même temps au moment où ça devient mainstream une sorte de nostalgie de cet entre soi d’hier et un sentiment de rejet des “touristes” qui adhérent parce que ça devient à la mode sans avoir hier payé l’écho, alors qu’en fait c’est un processus naturel d’ouverture à des choses hier rejetées par la masse, un enrichissement des individus et une assurance pour la société de faire société en réintégrant ses moutons noirs….. c’est une sorte de validation des survivants entre eux qui se “reconnaissent” et peuvent parler de leurs anciennes guerres que les jeunes ont pas connu…. une forme d’élitisme de ceux qui étaient là avant que ça soit aimé par tous mais bien dejà à l’époque où celui qui aimait ça se trainait un capital social négatif. faut il alors leur en vouloir de se payer un peu de cette façon de leur parcours dans tel ou tel courant culturel ? - from comments / Becker (outsiders)

An explanation of 3d projection mathematics (under Road Basics) and analysis of Activision’s Enduro (under Case Studies)! - Home / HN

If you are thinking of deploying Home Assistant (HA), let me give you a few tips that I should have known when started. HA environment is vast. There are myriads of options, features, and functions. There are some gotchas that can be costly down the road. - HN

Introduce rules so hard to comply with that only big tech will be able to comply - HN / investopedia

Retro revival on Pico8

parses documents and exports them to the desired format with ease and speed. - github

pico8 demake project - Open-Cave Mining Roguelike

a graphical patchbay for PipeWire. It allows creating and removing connections between applications and/or devices to reroute flow of audio, video and MIDI data to where it is needed.

Carla le rack universel Linux ,synthés, équa ou ampli virtuel en vsti, lv2, vst serie. - Carla

Real-Time High Quality Lip Synchronization with Latent Space Inpainting - github

a tool that takes a large C or C++ program that has a property of interest (such as triggering a compiler bug) and automatically produces a much smaller C/C++ program that has the same property. - github

“Very much alive,” in the sense of being a living organism in their own right. By that standard, each cell in the human body can also be considered a separate living organism, simply cooperating with other humans cells in a complex way. It makes sense, since we have no problem identifying the trillions of bacteria cells living on or in the human body as separate living organisms. - HN

have separate “take-off” points near the entrance/exit of each room. - HN

The buffer doesn’t help throughput; it’s not transient anymore and it just sits there. The buffer is actively harmful — it adds a delay! - Unbloating the buffers

a measurement of the highest or lowest density of points in a sequence. High discrepancy means that there is either a large area of empty space, or that there is an area that has a high density of points. Low discrepancy means that there are neither, and that your points are more or less pretty evenly distributed. - When Random Numbers Are Too Random / HN

Notification and interception of filesystem events. - inotify/fanotify / HN

It turns out that flooding your own lies is far more effective than trying to censor information. - HN

Au fond de la colonisation, il y a un négationnisme extrêmement profond de l’altérité qu’elle vise soit à faire disparaître, soit à dominer définitivement. - Extermination et violence coloniales euphémisées dans l’Algérie du XIXe siècle

Open source software platform for graph visualization - Home

a popular programming technique used to solve problems involving arrays or lists efficiently. It involves using two pointers (or indices) to traverse the data structure and is commonly used in problems related to searching, sorting, and subarray operations. It Typically can reduces the time complexity from $O(n^2)$ to $O(n)$ for many problems. - ChatGPT

One thing I’ve always struggled with Math is keeping track of symbols I don’t know the name of yet. - Detexify / HN

a card game that uses special circular cards, each with a number (8 in the standard pack, 6 in the kids pack) of symbols or image. - blog / HN

An open source virtual hand-drawn style whiteboard. Collaborative and end-to-end encrypted. - Online / github

When you use a reward card, the merchant is charged a higher fee than if you used a “normal” card. Simply by putting a different branding on the plastic you pay with, the credit card issuer gets more money from each transaction. - HN

Writing a simple Firefox Extension - article

a system for storing secrets without a single point of failure. psst helps the user to split a secret into up to four parts. Each part in isolation reveals nothing about the secret (except its length). Any two parts combined allow the secret to be restored. - github / HN

Table Maker for Modern C++ - github

To shift 16-bit values by a variable amount (specified by a vector), you have to take an alternative approach because no _mm256_sllv_epi16 intrinsic exists in AVX2. - SO

Save web pages as self-extracting HTML/ZIP hybrid files - github / SingleFileZ / HN

Contest - CG

• Hosting my website using my C web server - No reverse proxies required!

Put test points between well defined states to crash the application at random (or at will). - article / HN

Decentralized, open-source (MIT), C/C++ package manager. - Home / github

Author of Game Engine Black Book DOOM and other stuff - blog

• How to root Wiko wax
• Rooter + changer de ROM sur Wiko Wax 4G
• [ROM + CWM] [AOSP] [WIKO WAX, 4GAME, BLACKPHONE] Tesla 0.4.7

Visualizing algorithms for rate limiting - article / HN

The Reasonable Effectiveness of Using Old Phones as Servers - blog

If string are simple, then why does every programming language have their own slightly different string implementation? - article

Courage is knowing it might hurt and doing it anyway.
Stupidity is the same.

And that’s why life is hard.

You are not a real engineer… - Richard Marmorstein

On the Fediverse, any discussion extends beyond the immediate participants. - Intimacy Does Not Scale / HN / wikipedia

When transpositions are possible in a game, usually the number of them will grow exponentially with the search depth, making deep search much more costly than needed. Ideally, we would like to these branches of the search to share their computation. - Monte-Carlo Graph Search from First Principles / HN

If you’ve done any 3D programming, you’ve likely encountered the zoo of techniques and representations used when working with 3D rotations. Some of them are better than others, depending on the situation. - Exponentially Better Rotations (2022) / HN

timers are used as a replacement for CRON. -

Google could not function as a company without protobuf. It is ingrained deeply into every inch of their stack.

Likewise, gRPC is the main public-facing interface for GCP. It’s not going anywhere. - The Ugly Parts

A real time, nanosecond resolution, remote telemetry, hybrid frame and sampling profiler for games and other applications. - github

Skia does one thing really well, 2D graphics.
The original “Skia” was the development name for QuickDraw GX.
This Skia—which, again, doesn’t share code with either of its predecessors—is a kind of version 3, with a tribute name back to that original Skia. - HN / wikipedia

an Open Source, multi-platform library for OpenGL, OpenGL ES and Vulkan development on the desktop. It provides a simple API for creating windows, contexts and surfaces, receiving input and events. - Home

This post will show ways of implementing actions sequences and cutscenes in video games. - Elias Daler

• Image Editing with Gaussian Splatting

The Shockingly Simple Math Behind Early Retirement

From Hexcodes to Eyeballs - article

Using VSCode for Web - article

Copy text from images, for the Linux Desktop - github / HN

The Guide / HN

Feedback is critical to performing good work as a team. Good feedback cultivates quality work and professional growth. Bad feedback degrades quality and erodes relationships. - Open Source Code Reviews

TTE is a terminal visual effects engine. - TTE / HN

End of an era: Landsat 7 mission takes final images - usgs / HN

Physical modelling has come a long way since it first appeared. Many of the instruments included in the Arturia V Collection (one of the most common collections of instrument plug ins) are made using physical modelling - HN

Everything authenticated by Microsoft is tainted - HN

the Book / HN

How Bionic Wings Are Reinventing Drones / wikipedia / HN

B-trees and database indexes - blog

Digital signatures and how to avoid them - article / HN

Melting plastic waste into beautiful flat sheets on a budget - Teaching Tech

double speak langage

1-), 2, 3, 4, 5 - Understanding DeepMind’s Sorting Algorithm

Or, you could stop beating yourself up about it and reframe the whole activity as a creative release. Nobody else cares if you finish it, why should you? My neighbor died with a project car parked in his driveway. It had been there for years. Every so often he got out there and worked on it with his grandson. Who among us would call that time wasted? Why not dust off Project Foo on a Saturday afternoon, and just tinker with the fun parts? - HN

• Warpinator - send and receive files across a local network
  • usefull with android devices vs cloud
• Magic Wormhole - get things from one computer to another, safely
• Syncthing - own p2p networks

Programming ZKPs: From Zero to Hero - article / HN

open-source supporters are advised to use DisplayPort for the best experience. - HDMI Forum rejects AMD’s HDMI 2.1 open-source driver

All of Earth’s water in a single sphere! - USGS

• Multicolr - used MulticolorEngine to extract the colors from 20 million Creative Commons images on Flickr to make the images searchable by color.
• TinyEye - reverse image search. Find where images appear online.

Sweep-and-prune is my go-to algorithm when I want to quickly implement collision detection for a game. - article

Thing you will encounter while working in Enterprise.

Raspberry Pi Print Server: Setup a Network Printer - article

• Understanding image histograms with OpenCV

an unsupervised machine learning technique that seeks to group similar data into distinct clusters to uncover patterns in the data.

Color quantization is primarily used in computer graphics research literature; in applications, terms such as optimized palette generation, optimal palette generation, or decreasing color depth are used. Some of these are misleading, as the palettes generated by standard algorithms are not necessarily the best possible. - wikipedia

Comment ça marche #07 : Rubik’s Cube bluetooth connecté

an open-source, Debian-based Linux distribution geared towards various information security tasks - Home

a versatile command-line tool that lets you communicate with a device. - Home

Create 3d models and environments with tiles. - Home / HN

amazon / spec - 190€

Typography and Design in Science Fiction Movies - Home / HN

Engineering principles for building financial systems - HN

Perspective and Equations

There exists an array-based, in-place algorithm for this, reducing the need to allocate trees and chase pointers. - The Lost Huffman Paper / HN / wikipedia

Using MuZero’s Tree Search To Find Optimal Tic-Tac-Toe Strategy in a Spreadsheet

Jean Léon Gerome 1896 - wikipedia

• SSH as a Sudo Replacement - as well as discussion around sudo config

The incompetent group together, they have to in order to survive.
The competent don’t group together, they don’t need to. They can take care of themselves. The former uses their power as a group against the individuals in the latter. - HN

I’m pretty sure I’m not alone in wanting to customize the hell out of OSX. - r/MacOS

Why is DNS still hard to learn? - jvns

Optimized Debian and Ubuntu Linux images for ARM-based SBCs
Armbian is the opposite of Raspbian: Raspbian has dozens of contributors to focus on a single SBC platform. Armbian has a dozen contributors to focus on 100+ SBCs spread over 30 platforms. - archive

DNN Face detector in OpenCV - OpenCV

There is no way to safely interrupt an arbitrary block of code. - jvns / Why Ruby’s Timeout is dangerous (and Thread.raise is terrifying)

3D Printed Record - instructable

Vibration Bowl Feeder System - home / hackaday / youtube

Howto - 100% 3D printable Birdfeeder Lantern / r/3Dprinting

VSCode

The fanotify API - lwn / man

No trapdoor spider learns how to build a trap. No orb weaver learns how to spin a web. Trap/web building behavior is entirely programmed in their DNA.

If spiders can have complex behaviors hard-coded, humans certainly do too. - HN

how totransforms Image Classification into a Text-Image similarity matching task. - youtube / github

Virus online

the number one optimization for fast primality testing: Montgomery multiplication. It forms the basis of fast practical modular exponentiation implementations. - HN

The D language compiler uses a technique I call “poisoning” which has greatly reduced cascading error messages. The idea is whenever an error is found in an AST node, the AST node is replaced with an “error” node. Any combination of an error node with another node is replaced with an error node. Error messages for error nodes are suppressed.

It works far better than attempting to repair the AST into some plausible state.

It’s analogous to the propagation of NaN values in floating point code. - HN

running OpenCV on a gpu.

• I’m writing a new vector search SQLite Extension

Until the discovery of better coding techniques (Turbo codes and low-density parity codes), Reed-Solomon forward error correction (FEC) was one of the most powerful ways to make data storage or data transmission resilient against corruption - Reed-Solomon Error Correcting Codes from the Bottom Up

Solving the Traveling Pacman Problem

a tool for pattern matching and text transformation that has many uses in kernel development, including the application of complex, tree-wide patches and detection of problematic programming patterns. - kernel.org

overhyped topics prooved to be not so great.

Decompiling Binary Code with LLM - LLM4Decompile / HN

algorithm - HN

Compared to the constructive solid geometry (CSG) representation, which uses only primitive objects and Boolean operations to combine them, boundary representation is more flexible and has a much richer operation set. In addition to the Boolean operations, B-rep has extrusion (or sweeping), chamfer, blending, drafting, shelling, tweaking and other operations which make use of these. - wikipedia

Code search is hard

BIQU H2 Extruder V2.0 / 3djake / review

Hardware

• i5
• Asus P8H67
  • Win11 - rt640x64.sys bsod during setup - caused by realtek ethernet network driver - remove cable during install
    • use wifi (even usb dongle) to install realtek driver after install.
• 4Go DDR3

Conflict-free replicated data type / HN

Compiler Options Hardening Guide for C and C++ - OpenSSF / HN

White spirit / mineral turpentine - A mixture of aliphatic, open-chain or alicyclic C7 to C12 hydrocarbons, white spirit is insoluble in water and is used as an extraction solvent, as a cleaning solvent, as a degreasing solvent and as a solvent in aerosols, paints, wood preservatives, lacquers, varnishes, and asphalt products.

• The word “mineral” in “mineral spirits” or “mineral turpentine” is meant to distinguish it from distilled spirits (alcoholic beverages distilled from fermented biological material) or from true turpentine (distilled tree resin).
• used for cleaning and degreasing machine tools and parts, and in conjunction with cutting oil as a thread cutting and reaming lubricant.

Isopropyl alcohol / isopropanol - Isopropyl alcohol, an organic polar molecule, is miscible in water, ethanol, and chloroform, demonstrating its ability to dissolve a wide range of substances including ethyl cellulose, polyvinyl butyral, oils, alkaloids, and natural resins.

• dissolves a wide range of non-polar compounds. It evaporates quickly and the typically available grades tend to not leave behind oil traces when used as a cleaning fluid unlike some other common solvents. It is also relatively non-toxic. Thus, it is used widely as a solvent and as a cleaning fluid, especially where there are oils or oil based residues which are not easily cleaned with water, conveniently evaporating and (depending on water content and other variables) posing less of a risk of corrosion or rusting than plain water. Together with ethanol, n-butanol, and methanol, it belongs to the group of alcohol solvents.

Troubleshooting Guide

Introduction to CAN bus for your 3D Printer - youtube

• Easy Method to Make Great Springs - en utilisant une tige filetée.
• without a lathe
• Comment faire des ressorts à la maison correctement!
• big spring

Tapping Tools - Tapping Arm

NEMA est l’abréviation de National Electrical Manufacturers Association, qui établit des normes pour la taille et les performances des moteurs pas à pas. Dans cette norme, « 17 » fait référence à la taille de la surface de montage avant du moteur, qui est d’environ 1,7 pouces sur 1,7 pouces (ou environ 43 mm sur 43 mm). - steppermotor.fr

The simple beauty of XOR floating point compression - blog / HN

Orca Slicer getting started guide: A slicer for all of your 3D printers - teaching tech / github

Dremel 3000

a structural diff tool that understands syntax - Difftastic / HN

the easiest way to debug a crash on the nth call of a piece of code is to set a hardware breakpoint - yduf

def one_plus_one = 1 + 1 - History / HN

“The best things are still a reasonably small core of concepts, with the development team working hard to “factorize” any new feature into those concepts, and the flexible syntax that is instrumental for making the core small”

this is actually the definition of syntactic sugar, from a language design point of view. People often use it derogatorily to refer to bits of syntax that they simply don’t like, but as a term of art it refers to syntactic elements that are introduced in an effort to provide new ergonomics—new ways of working in a language—without altering the language’s fundamental primitives. - HN

The moment you think your configuration language needs loops or conditionals, drop it and just throw a scripting language on there. Your users will thank you. - Making a Compiler to Prove Tmux Is Turing Complete / HN

The Return of the Frame Pointers - HN

Universal Android Debloater GUI - github / HN

Home

Given the current register state for a thread, and read-only access to memory, what would the register state hypothetically become if the current function was to immediately return and execution was to resume in its caller? - Linux/ELF .eh_frame from the bottom up

• EMUI 5.0.4 / Android 7.0 - xda / amazon / les numeriques / specs

There’s essential decoupling and accidental decoupling; decoupling you want, and decoupling which mostly just obscures your business logic. - The Big Little Guide to Message Queues

This cube manages to balance itself on a corner, and can simultaneously rotate around its axis in a controlled manner. It does so using clever controls and a set of three reaction wheels. - blog / HN

When a measure becomes a target, it ceases to be a good measure - wikipedia

Visualize your Markdown as mindmaps. - markmap / online

Dumping Firmware for fun and learning

some languages are more powerful than others. Posits a hypothetical middle of the road language called Blub.
As long as our hypothetical Blub programmer is looking down the power continuum, he knows he’s looking down. Languages less powerful than Blub are obviously less powerful, because they’re missing some feature he’s used to. But when our hypothetical Blub programmer looks in the other direction, up the power continuum, he doesn’t realize he’s looking up. What he sees are merely weird languages. He probably considers them about equivalent in power to Blub, but with all this other hairy stuff thrown in as well. Blub is good enough for him, because he thinks in Blub. - Blub Paradox / HN

Si tu mets pas les mains dedans et que tu laisses les connard gerer la merde, alors tu fais partie du problème - The Boys (s2e3)

LibreOffice is better at reading old Word files than Word

He Who Knows Does Not Speak

Pipes inside pipes - VLANs: How to Protect Your Wifi and LAN

The Au C++ Units Library: Handling Physical Units Safely, Quickly, & Broadly - CppCon 23

Home / github / wikipedia

Calculating Logarithms by Hand

Certain technology decisions lead to projects that are warm-blooded: everything is great when there’s constant motion on the project, generating heat. But put warm-blooded software in the freezer, and you’ll pull out a corpse six months later. - Cold-blooded software / HN

Arthur Scherbius (30 October 1878 – 13 May 1929) was a German electrical engineer who invented the mechanical cipher Enigma machine.[1] He patented the invention and later sold the machine under the brand name Enigma. - wikipedia

“Build it and they will come” is almost never a winning strategy. Of course sometimes it works, you build the right thing at the right time and it goes viral, but most of the time you get crickets even if it gets to the top of Product Hunt or Hacker News (neither of which are of any importance outside of tech circles).

The right way is to talk to prospective customers first in a given niche, listen carefully to their problems, and figure out which problems are worth solving, i.e. you have the skills and resources to solve them and people will pay you to solve them. This is difficult if you don’t have a network or experience in specific industries so tech people just wait around for a business person to tell them what to build instead. - HN

If you just go to the file menu and export, FreeCAD just creates a STL file from the visualisation mesh. The mesh tessellation was earlier simply defined from the FreeCAD PartDesign WB visualisation setting. There was a feature request for on STL export to collect that value from the individual PartDesign “Body” objects’ individual visualisation “property” rather than the FreeCAD setting value, which is what happens now IF we are talking about exporting a PartDesign Body object. If we are talking about Part WB objects, then the value is still collected from the PartDesign visualisation setting as previously explained. - forum

by law FDA only needs to certify that OTC medications are safe not that they are effective… phenylephrine was no better than placebo - scientific-american / HN

Bit banging a 3.5” floppy drive

In life, no one tells you when you’ve won - Your life is Tetris—stop playing it like chess / HN

Define a process for precise FDM printer calibration

file command’s magic pattern file - MAGIC(5)

There’s no one at the end of the tunnel grading me on how I used my time. Time as a resource to be used is a human invention. - In Praise of Wasting Your Time

Agade Arena example

SO

A 2 files on prem LLM. - Intro to Large Language Models / Llama In My Living Room

A Linux namespace is an abstraction over resources in the operating system. We can think of a namespace as a box. Inside this box are these system resources, which ones exactly depend on the box’s (namespace’s) type. There are currently 7 types of namespaces Cgroup, IPC, Network, Mount, PID, User, UTS. - A deep dive into Linux namespaces

It is basically always the case that the long-term costs of keeping a system working reliably vastly exceed any inconveniences you encounter while building it. - blog / HN

These days it generally is better to prefer Zstandard to zlib/gzip for many reasons. - HN / facebook/zstd

Looking for an OS that can run on an old and tight system ?

Cute mini-laptop from the past - spec

2023 - 50€ - amazon

• Sample Sandbox

2023 - 30€ - amazon

I see lots of people trying to prompt with incomplete sentences, not capitalizing, using slang, bad grammar, imprecise terminology etc. And it still works. However, I find that you get a noticable a quality boost if you use proper English and treat it more like a human. - HN

Simplest step for Audio setup.

Lua Object-Oriented Tutorial – Complete Guide

Choose one

A graphical and themeable emulator front-end that allows you to access all your favorite games in one place, even without a keyboard! - Home / github / r/emulationstation

a multi-purpose emulation framework, which purpose is to preserve decades of software history. - Home

the product of Nintendo’s efforts to develop a hit to rival Pac-Man (1980) and break into the North American market. - wikipedia

a frontend for emulators, game engines and media players.

an initial fork of The Retro Arena, Short for Another rk3326 rockchip Operating System. Ubuntu base - ArkOS

Reading and writing metadata from multimedia files - linux-magazine

A cylindrical scroll platforrm games - wikipedia

GIGA POWER - neo-geo.com

1 + ϕ = ϕxϕ - Le nombre d’or - Micmaths

Audio applications are time-critical, so they need a preemptible (low latency) kernel with a 1000Hz timer frequency. - Ted’s Linux MIDI Guide

a SUID sandbox program that reduces the risk of security breaches by restricting the running environment of untrusted applications using Linux namespaces, seccomp-bpf and Linux capabilities. - github

Ardour by unfa

Complex problems have simple, easy to understand, wrong answers. - Grossman’s Law / Benno Rice

Getting Started with Sound and Music - nerdyteachers

Window-swap / HN

Living fork of Clementine itself inspired by Amarok 1.4, - Home

Eg Tracking SQLite Database Changes in Git

Coroutines are lightweight and trivial to synchronize. They are perfect for small bits of incremental computation, like iterators and tokenizers. - Coroutines in C (2000) / HN

• Audio CD ripping – optical drive accuracy listing

a construct that enables you to traverse through the elements of the so called collection or container. - Lua - Iterators

a lightweight embeddable scripting language. - Lua / online / Lua Guide

print magic

L’Hexagone 666, le plus grand des hexagones - Micmaths

Flatpak is not the future

Analyzing System Boot Performance - practical examples

How to get custom file extention have thumbnail in nemo ?

Want to spice up your game with animated scene between bouts of gameplay? Cutscenes are uncommon on small platforms like PICO-8. There’s no room for full motion video, so a scene must be described in code or with some kind of cutscene engine. This is made much easier with a Lua feature added in PICO-8 v0.1.6: coroutines. - CutscenesAndCoroutines / Coroutines

Messaging bus on linux

Making a Roguelike

Collisions in games aren’t just about hitting a wall, they’re about breaking through barriers, smashing expectations, and crashing into new adventures! - ChatGPT

a fork of Aseprite - Home

Fast and Versatile Scripting Language - Home / HN / online

Learn to Handle Every Type of Sprite sheet Like Pro! - youtube

Pixelate your dreams! - github / Showcase

A small or elusive supernatural being; an elf or pixie. - noun

Bitplanes! An overview

Background images w/o tiles

PMTiles is a single-file archive format for pyramids of tiled data. - Protomaps – A free and open source map of the world

Tweet carts are PICO-8 doodles, that fit into a single tweet. That means that each of those masterpieces is not longer than 280 chars (bytes).- Guide on minifying tweetcarts

Gyruss on pico8

PICO-8 Easier development with Visual Studio - imogiagames /

Galaga in a tube shooter format - giantbomb.com

a “demake” of the SCUMM engine (which powered most of the classic LucasArts adventure games, such as Monkey Island and Maniac Mansion) for the PICO-8 Fantasy Console - github

How to handle the Pico-8 palette

Getting Started - Tutorial / Guide / Awesome PICO-8 / Helpful Posts

Open files on click

Microsoft Lens - PDF Scanner / demo

an AI-Powered Photos App - github

Run Kubernetes YAML specification workloads on single nodes instead of a cluster. - Make systemd better for Podman with Quadlet / github

TODO: rescucite PSP

• have pico8 on it

Powkiddy RGB30 - In-Depth Review / r/PowKiddy

The Compact Calendar presents days as a continuous candy bar of time. Weeks are presented as a stack of available time with no gaps, making it easier to count-out days naturally as you think. - Home

A “hierarchical spreadsheet” that is a great replacement for spreadsheets - TreeSheets

NaN Gates and Flip FLOPS

Your goal is to make Gandalf reveal the secret password for each level. - Lakera Gandalf game -

A Clutter-Free Life: Going Paperless with Paperless-ngx - article / HN / Home / github / local

see also

• Ruby on Rails

The internet consumes extraordinary amounts of energy - by 2025, the IT industry could use 20% of all electricity produced and emit up to 5.5% of the world’s carbon emissions.

Hello UUIDv7! / wikipedia

The old and new backends coexisted, and we could use either for any given function in the compilation. Keith introduced an environment variable GOSSAHASH that specifies the last few binary digits of the hash of function names that should use the new backend. - binary search debugging of compilers

Voice coding at the speed of thought - Home

How to Choose a Name for Your Computer - HN

Resolving small problem with a hardcoded solution and small hash table - article

Binary search is notoriously difficult to get correct. A 1988 study found that out of an informal sample of twenty computer science textbooks, only five contained a correct binary search algorithm. I haven’t checked, but I hope we are doing better now in 2022. Unfortunately off-by-one errors feel rather timeless to me. - Elegant and Fast

VisualPinball Engine for MacOS / Android / linux - github / discord

It is just like creating a tilemap - article

Pretty powerful logging library in about 1000 lines of code - github

The Emissions of Every Meat Type - article

BeeRef lets you quickly arrange your reference images and view them while you create. Its minimal interface is designed not to get in the way of your creative process. - github / HN

Cap’n Proto is the result of years of experience working on Protobufs, listening to user feedback, and thinking about how things could be done better. - Home

03:03 (mm:ss) - The fastest 3D Benchy on THE 100 printer - youtube / github / hackaday.io / printables / discord / klipper-config

PinMAME emulates the hardware found in almost every solid state pinball machine created from the earliest days of CPU-controlled machines (mid 1970’s) through 2014 (Stern SAM), with around 770 emulated unique Pinball machines and many more clones/revisions (overall more than 2700 sets). - github

DOF is a separate piece of software that you can install on your system to control feedback devices. It’s not really a full separate program; it’s more of an add-on that works together with Visual Pinball and other software. DOF handles the communications between the pinball software and your output controller devices. - DOF Setup

The B2S Server system files are used to run .directB2S backglasses for the open source pinball table editor and simulator called Visual Pinball. The B2S Server is a small piece of the puzzle in the virtual pinball universe. - wiki / github

The workflow is to buid the fings as solid, and do the void afterward. - youtube

There’s is not 2 way to write this function. The path is very narrow to write the right code. - Andrei (Code Europe 2023 Closing Keynote)

The most over-engineered C++ assertion library - github

Elle ne pourra pas etre celle de remplacer le petrole pour les vehicules - Hydrogène (Jancovici)

All modern operating systems come equipped with a firewall – a software application that regulates network traffic to a computer. The utility firewall developed for Linux systems is iptables. - Iptables Tutorial

Algorithmica / HPC

Petrol availability may be divided by 2 in 2050, decline should start around 2030. This will divide the import in europe from 2 to 20 during the same period. - risques d’approvisionnement de l’UE

• How do I install the latest version of cmake ?

DIY ? - pinscape guide

These People fail to realize that an AI outscoring a human on a test does not mean it can actually do the thing the test measures. - GPT-4 Is Not Getting Worse / HN

Hipopotam’s games collections

This project was started by Randy Davis, open sourced in 2010 and continued by the Visual Pinball development team. - github / wikipedia / doc / r/virtualpinball/ / discord

Everything does pathname lookups all the time, it’s hugely performance-critical, and it’s very much one of those areas where you also want to scale well in SMP environments, and it has lots of complexity in locking. And you very much do not want to do any IO, so caching is very important. In fact, pathname lookup is so important that you can’t leave it to the low-level filesystem, because we have 20+ different filesystems, and having each of them do their own caching and their own locking would be a complete disaster. - linus about the VFS

FreeCAD: How to create thick walled and hollowing out objects and how to prevent offset failure - youtube

Be Nice to Spiders When everyone else is afraid or uncomfortable or angry about something, you don’t have to be. - HN

pictured

What does it means ? - HN

Colors Picker for Linux / Picket

LoRa (from “long range”) is a physical proprietary radio communication technique. - wikipedia

Segment Anything Model (SAM) produces high quality object masks from input prompts such as points or boxes, and it can be used to generate masks for all objects in an image. - SAM.cpp / HN

Parsing XML with Ruby - SO / ruby toolbox

Play all your games on Linux - Home / r/linux_gaming

Yep, SBT and Gradle make Maven look good. - What is wrong with Java’s tooling? / 2

A teenage girl Lana and her cat companion Mui explore their planet invaded by hostile alien machines. - wikipedia

Bleak Sword is a dark fantasy action-adventure video game - Home

There’s no Exit - The Invisible Horror of ‘The Labyrinth’

not so sweet $HOME

Streaming the reMarkable 2 - blog / github / HN

Using uu packer, we can achieve 6bits text encoding in specific case - Compression in Golf: Part I/Uuencoding

Packing your Ruby application into a single executable - github / youtube

Developer hub / Power users hub / mastodon

DaVinci Resolve is a professional-grade video editing and color grading software that offers a comprehensive set of tools and features for post-production work. One key aspect of DaVinci Resolve is its support for Linux as a platform, making it an attractive choice for Linux users and professionals working in Linux-based environments. - DaVinci Resolve on Linux

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RenderDoc is a free MIT licensed stand-alone graphics debugger that allows quick and easy single-frame capture and detailed introspection of any application using Vulkan, D3D11, OpenGL & OpenGL ES or D3D12 across Windows, Linux, Android, or Nintendo Switch™. - Home

follow

counterfeit SD cards are still an issue checking with F3 / H2testw directly after purchase is highly recommended. - How to prepare a SD card? / SDCard list

Ready-made hardware or software, which are adapted aftermarket to the needs of the purchasing organization, rather than the commissioning of custom-made, or bespoke, solutions. - wikipedia

A curve of constant width - wikipedia / thingiverse

Allwinner A20: CPU: ARM Cortex-A7 / Mali-400 GPU, supports HDMI 1080p, no LVDS support - / CubieBoard

• Steganography Based Ad Payload That Drops Shlayer Trojan on Mac Users
• OutGuess - automated tool for detecting steganographic content in images.

Using transformed ellipses to estimate perspective transformations of text. - article / HN

Content-Addressable Overlay Filesystem for Linux - ComposeFS / HN

An individual airplane like in Films du Studio Ghibli - 1984 : Nausicaä de la Vallée du vent- 360° POV

Tiny Mac III (Pi 4) - instructable / HN

a way to store two heterogeneous objects as a single unit. A pair is a specific case of a std::tuple with two elements. - cppreference.com

a binary tree inside an array, so it does not use parent/child pointers. - heap / std::make_heap

there are a few tools you can use to losslessly optimise and reduce file sizes of various image formats. - HN

one technique is to use a single bit per voxel (so 32 voxels per uint32_t: a 0 bit means empty, a 1-bit means filled) and then put the whole voxel space into a Morton space-filling curve - HN

Make all you Integer positive, while keeping them small - lemire / HN

Verniers allow the user to make precise fractional measurements of distance. - DIY Vernier Scale

Java optimizer can take quite sometime to get optimal runtime performance (more than 1h) - Runtime vs. compile time (JIT vs. AOT) optimizations in Java and C++ / Java on CRaC: Superfast JVM Application Startup

Pour répondre à vos attentes convenablement, elle doit mesurer 3 fois l’épaisseur de la pièce à fixer. - Comment mesurer une vis ?

Software based skew correction can help resolve dimensional inaccuracies resulting from a printer assembly that is not perfectly square. - klipper

SectorC is a C compiler written in x86-16 assembly that fits within the 512 byte boot sector of an x86 machine. It supports a subset of C that is large enough to write real and interesting programs. It is quite likely the smallest C compiler ever written. - xorvoid / HN

It’s time to kick ass and chew bubble gum, and I’m all outta gum! - Eduke32 / Hi Res Pack 2023 / Packages

Reflection in C++ - Past, Present, and Hopeful Future - Andrei Alexandrescu - CppCon 2022

Developers often believe that software performance follows a Pareto distribution: 80% of the running time is spent in 20% of the code… Sadly, it does not work. - Performance Excuses Debunked / Overall architecture trumps everything / HN

Parsing HTTP verbs appeared to be the fastest when we use a compile-time trie: a series of nested switch statements. I could not believe that a perfect hash function is not better, and that led to a novel hashing approach that is based on the instruction PEXT (Parallel Bits Extract). - 0x80.pl / HN

The algorithmic trick that solves Rubik’s Cubes and breaks ciphers - youtube

Find the number of subsets of {1,…,2000} whose sum is divisible by 5 - Olympiad level counting

Only one pair of distinct positive integers satisfy the equation $m^n = n^m$ - HN

Games use segment intersection tests all the time, for everything from line of sight to checking whether a bullet hit a monster. This is the most complicated of the four AABB tests, and is commonly known as a slab test. It finds the time of the line’s intersection with the near and far edges of each axis of the AABB. If they overlap, the segment is intersecting. - Intersection Tests in 2D

How To Install Handbrake on Linux

• OpenCV Combine Images
• How to save the region of interest of a frame using openCV?
  • ROI’s are just numpy slices,

Ruby integration with VSCode - Ruby by Peng Lv

Decreasing the Number of Memory Accesses 1/2

Home

method to learn Morse

• File Expiration Using BPF - rolling update based on file expiration using standard attribute and eBPF tooling.

Optical flow is the motion of objects between the consecutive frames of the sequence, caused by the relative motion between the camera and the object. It can be of two types-Sparse Optical flow and Dense Optical flow. - geeksforgeeks

The Kalman Filter is one of the most important and common estimation algorithms. The Kalman Filter produces estimates of hidden variables based on inaccurate and uncertain measurements. Also, the Kalman Filter predicts the future system state based on past estimations. - kalmanfilter.net

a lunar lander style web game - HN / autopilot

A Blob is a group of connected pixels in an image that share some common property - Finding the Connection!

I built an EDM machine / kickstarter / Électro-érosion (FR)

Cpps: An (pseudo) interpreter for C++ scripts - github

TOOLCRAFT ST-50A Soldering station Analogue 50 W +150 - +450 °C - conrad / r/soldering

It looks like a microcontroller, but behaves like a UNIX machine. - KB2040 / HN

The OpenCV DNN module only supports deep learning inference on images and videos, but it supports loading many popular deep learning frameworks such as TensorFlow, (Py)Torch, DarkNet, Caffe, ONNX. - DNN opencv module: A Definitive Guide / A Comprehensive Guide / DNN

Opensource tracking and image stabilization tool - github

How to setup

Work online! - Getting Started with Videos

ML solution for accurate iris estimation, able to track landmarks involving the iris, pupil and the eye contours using a single RGB camera, in real-time, without the need for specialized hardware. - MediaPipe Iris / Eye Tracking with Mediapipe and OpenCV

Getting started with C++ MathGL on Windows and Linux / Home

running code faster is the only way to consume less (Anyway Java is faster than c++) - Efficiency with Algorithms, Performance with Data Structures (CppCon)

Les haut-parleurs de grave, ou boomers, ont la suspension périphérique qui se désagrège au fil du temps. C’est un phénomène inéluctable. - Remplacer la suspension usée

Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. It reduces bandwidth and improves response times by caching and reusing frequently-requested web pages. / example

Regular function declarator syntax vs Trailing return type declaration. - cppreference

The BNT162b2 mRNA vaccine has this digital code at its heart. It is 4284 characters long, so it would fit in a bunch of tweets. At the very beginning of the vaccine production process, someone uploaded this code to a DNA printer (yes), which then converted the bytes on disk to actual DNA molecules. - Reverse Engineering the source code of the BioNTech/Pfizer SARS-CoV-2 Vaccine / HN

Lua is a lightweight embeddable scripting language that is commonly used in a variety of applications. Because Lua has C bindings, it is very easy to embed. As a result of this, Lua is widely used in many applications(especially games). - Reversing Lua’s C API / r/lua

how to reverse engineer an Android Application and what tools you can use to achieve this - even without owning an Android Phone. - The EPIC.blog

As XML is extensible you can add attributes and element children as you wish. - SO

reduce stress concentration point - youtube

It’s probably simplest to start with schemes that only encode values in the 20 movable cubes. - Rubik’s Cube Encoding

A quick and dirty introduction to gatttool for accessing data from Bluetooth Low Energy devices

Overview of BLE device identification

• Pourquoi démonter un potentiomètre pour le nettoyer
• Potentiomètre guitare – faire le bon choix

libcrunch: run-time type- and bounds-checking for C (and maybe other languages…)

Three bears arrived at their den to discover a yellow haired girl sleeping, and as she was neither too hot nor too cold, neither too soft nor too hard, but just right, they ate her. - Neil Prowd, Ballarat, Victoria, Australia

Ever-expanding animation of the life of the 796th floor of a space station / HN / r/wimmelbilder

Roof and Ramp Pitch

Giving Personality to Procedural Animations using Math

For most applications the optimal size of a (time-based) cache is around the point that keeping an item around in the cache is equal to the cost of accessing it again… A side effect of that is that systems that run faster, and therefore access each cached it more often, get more benefit out of a cache by pushing that set point out further… The bottom line is that both locality and memoization are huge contributor to the performance of systems, both positive and negative. - HN

kramdown - fast, pure-Ruby Markdown-superset converter

Mathgical move - wikipedia

How Karatsuba’s algorithm gave us new ways to multiply - O(N^1.6) 1960

But what is a convolution? / A fundamental way to combine function - 3Blue1Brown

Unix Signals are a bit of a pain: They seem deceptively simple, but aren’t. They are asynchronous. Signals are delivered to any one thread that has not blocked the signal, including (and as a most likely candidate) the main thread. - Signal Handlers for Multithreaded C++

boxxy is a tool for boxing up misbehaving Linux applications and forcing them to put their files and directories in the right place, without symlinks! - boxxy / HN

To my surprise, some programmers consider using print statements instead of debuggers as a wholly inferior means of debugging. As I view the debugging process, they are complementary techniques. But the issue is not really “print statements” versus “debuggers.” - It’s traces versus snapshots. / HN

A better formulation of DRY is SPOT (Single Point Of Truth). Definitions (code, data) that represent the same “truth”, i.e. when one changes all have to change to represent a consistent truth, should be reduced to a single definition…
Having said that, the cost of creating dependency chains is often underestimated. Overly dogmatic adherence to SPOT/SST can lead you to make the wrong tradeoff on coupling two unrelated areas of your codebase to unify some trivial truth. - DRY is an over-rated programming principle?

the Kolmogorov complexity of an object, such as a piece of text, is the length of a shortest computer program (in a predetermined programming language) that produces the object as output. It is a measure of the computational resources needed to specify the object, - wikipedia

Logical fallacies are errors in reasoning that undermine the quality of an argument. - The Logical Fallacy Guide

It is absolutely idiotic to have 64-bit pointers when I compile a program that uses less than 4 gigabytes of RAM. When such pointer values appear inside a struct, they not only waste half the memory, they effectively throw away half of the cache. – Donald Knuth (2008)

With the arrival of UEFI a new partition relevant for boot appeared, the EFI System Partition (ESP). - How to Set Them Up / HN

Switch-Emulators-Guide - github

• Removing characters from strings faster with AVX-512
• Multiply packed 8 bit integers by vectors of floats using intel intrinsics
• How to shift elements of an array using intel intrinsic
• tolower() in bulk at speed / HN
• sorting with AVX2 intrinsics

MacOS memories

the basics - cavelabs / HN

Palm OS developer releases source to classic games, 20 years after release - HN / github

HN

Sequence diagrams, the only good thing UML brought to software development - HN / integrated in github/gitea/gitlab - github / online / HN

Misconception: “4k graphics are not interesting, it’s just a 4k intro without animation and music” - inspire!

accurately detecting the center of a circle in an image. - Hitting the bullseye: Adventures in computer vision

A Script that Solicits GPT-3 for Comments on Decompiled Code - medium / HN / github

and he’s warm for a day, but set fire to him and he’s warm for the rest of his life. - Terry Pratchett

the range of policies politically acceptable to the mainstream population at a given time. It is also known as the window of discourse. - wikipedia

Gorillaz - Drum Cover

If you are on Ubuntu Jammy (22.04) or later, you do not need to worry about installing debug symbol packages anymore. The Ubuntu project maintains a Debuginfod server, and GDB and other debuginfo-consumer applications support it out of the box. For more information about it, please refer to this page - ubuntu

GDBE setup - vscode

Creative coding, making loops with Processing - HN

Petit Moniteur - amazon / GoveeBTTempLogger / Govee-monitor

transforming an SVG path into a vector rope drawing. / HN

What I really want is to take the names and types I’ve figured out from my disassembler, and make them visible to gdb. - a simple solution to this / HN

Say you store 32-bit hashes of a thousand items – what is the probability that you will have a collision? - I Like Big Bits

A stable bottom-up adaptive branchless merge sort - github / HN

everything you need to know about Human Pose Estimation and its real-world applications. - v7lab

memrun repo from guitmz, that demoed running (x86_64) ELF from memory - QA

People associate running pods with Kubernetes. And when they run containers in their development runtimes, they do not even think about the role pods could play—even in a localized runtime. Most people coming from the Docker world of running single containers do not envision the concept of running pods. - Podman: Managing pods and containers in a local container runtime

A language that doesn’t affect the way you think about programming is not worth knowing. –Alan Perlis

Facebook open-source and free framework based on the Torch library. - Home

an extension to C/C++/Fortran languages by adding the parallelizing features to them. - Introduction

Forking Chrome to render in a terminal - blog / carbonyl / HN

Text to image generation

Using Coriander - Hugh Perkins

The 100 Prisoners Problem

No amount of anciety makes any difference to anything that is going to happen - Alan Watts

How to solve a 2x2 Rubik’s Cube

To solve these you have to learn a new algorithm which rotates the centre pieces. - Ruwix

You can even start from scratch - micrograd walktrhough

Manipulating spreadsheets with Ruby - rspreadsheet

A tensor is often thought of as a generalized matrix. That is, it could be a 1-D matrix (a vector is actually such a tensor), a 3-D matrix (something like a cube of numbers), even a 0-D matrix (a single number), or a higher dimensional structure that is harder to visualize. The dimension of the tensor is called its rank. - What’s the difference between a matrix and a tensor?

AI DEPTH VISION app with MIDAS in 15 Minutes / github / medium / pytorch

Link’s Awakening game engine documentation

A Visual Guide to Evolution Strategies

Chemical elements and their periodic relationships / HN / Alternative periodic tables

I tend to fall back on scanf when I have to parse simple text files. - Simple string parsing with C++

Why not just use the classic int x = 1; and call it a day? - Benefits & Pitfalls

BFS and Voronoi diagrams using bit-shift operation - CG

Google AI Challenge post-mortem / github

how we can create SVG file - using PyCairo / geeksforgeeks

Wolfenstein 3D is a big milestone in id Software’s evolution and PC gaming in general. In addition, because its technology is more primitive, the source code is more approachable for study and implementation. The game doesn’t have a real 3D engine but rather simulates a 3D world from a 2D map using a technique called Ray Casting. All the drawing is done by directly putting pixels on the screen. - Rustenstein 3D: Game programming like it’s 1992 / HN

Berlin and Kay found that, in languages with fewer than the maximum eleven color categories, the colors followed a specific evolutionary pattern. - Using terminal color code

How to automatically generate a stacktrace when my program crashes - SO

configurable daemon for Linux which is able to correctly prevent out of memory (OOM) and keep system responsiveness in low memory conditions. - nohang

an emulator for two recent Nintendo video game consoles: the GameCube and the Wii. - Home

Good advices and example - Photography for geeks / HN

V-Drums Module - TD9

The image in this post displays its own MD5 hash - HN

with dd-wrt router - SO

The image alignment and registration pipeline takes two input images that contain the same scene from slightly different viewing angles. - Accurate Image Alignment and Registration using OpenCV / HN

Converting a fisheye image into a panoramic, spherical or perspective projection - article / HN

Generator

Click the link to see some cool visualizations, refresh a few times for random examples, and try editing some of the code yourself. - inspired by shadertoy.com / HN

Ruwix / Quelle méthode pour votre niveau ?

WTX87M09FF

Sapling is Fb mercurial clone, compatible with git & github - HN

AI Found a Bug in My Code - codegen / HN

If you find yourself needing to do horizontal operations on vectors, especially if it’s inside an inner loop, then it’s usually a sign that you are approaching your SIMD implementation in the wrong way. SIMD likes to operate element-wise on vectors - “vertically” if you like, not horizontally. - SO

Android TV - http://mafreebox.freebox.fr/

the main reason C++ can be faster than the Java memory management is that it has value objects, which can avoid a lot of heap allocation (and pointer chasing) even without replacing it with stack allocation. Consider for instance an array of objects, in C++ it can be a single allocation, while Java requires one allocation for each object, plus another allocation for the array itself. - HN

Loading 8 chars

There is no single instruction in AVX2 or earlier. (AVX512 can use masks in bitmap form directly, and has an instruction to expand masks to vectors). - Peter Cordes (SO)

a web-based graphical interface for servers - local / Home

platformer that made you feel like an Indiana Jones - online / XRick / video / online

SILE versus TeX

Taste is knowing what is good — being able to recognize it.
Skill is the ability to build — to do what’s needed to do the work.

Taste and skill are totally independent. Movie critics (may) have great taste but they don’t know how to make movies themselves. Mediocre directors, in turn, might know exactly how to shoot scenes, but have no taste for making good ones. - Taste and Skills

Late 2012 - 16GB / quad-core Intel Core i5 processor - iMac 12 2 / cockpit

Contrairement à ce qu’on pourrait a priori penser, les grands gagnants de cet effacement diffus ne sont même pas les ménages équipés. L’effacement consiste en un report des consommations, ce n’est pas un dispositif d’économies d’énergie. Une prime scandaleuse / 60millions

A bad coding standard is worse than no coding standard. However an appropriate set of guidelines are much better than no standards: “Form is liberating.” - C++ Core Guidelines

Vertical Mill Tutorial 1 : The Basics / r/Machinists

The Intel Management Engine (‘IME’ or ‘ME’) is an out-of-band co-processor integrated in all post-2006 Intel-CPU-based PCs. It has full network and memory access and runs proprietary, signed, closed-source software at ring -3, independently of the BIOS, main CPU and platform operating system — a fact which many regard as an unacceptable security risk (particularly given that at least one remotely exploitable security hole has already been reported). - EFI Install Guide / HN

If a vector component is already finished, freeze it to avoid doing any further calculations on it. This is done by masking the finished components on any value assignment. The unfinished vector components will keep being updated, but finished ones won’t. - Controlling the Data Flow

a C++ library that provides portable SIMD/vector intrinsics. - github / HN

Palette an AI colorizer - emilwallner / HN / r/AIPhotoColorizations / r/Colorization / r/OldSchoolCool

1-have diagnosis check / 2-document the fix / 3-have fix working check - Why Linux Troubleshooting Advice Sucks

Low Earth Orbit Visualization / See a satellite tonight / HN

Division de polynomes

nice looking clock

Simple and innefficient - HN / arxiv.org

creating HTML documents and fragments - SO

an offline storage solutions for content coming from the Web - Home

• Schémas de branchement moteurs triphasés à deux vitesse

You’re thinking of a relay cutting power to the radiator as a whole. That is indeed not a good idea and may damage it long term. - Fil pilote / adomotique

How to get fprintf results as a std::string w/o sprintf - SO

There are 3 important measurement units for the plane angle and each of them is the most convenient unit for a certain class of applications: the right angle, the cycle and the radian. - HN / [0, 1] range

integrated in VSCode - CodeLLDB

Les épisodes clé de la série - Les opus qui font avancer l’histoire et qui présentent un évènement ou une information essentielle pour la suite de l’aventure sont tout de même nombreux. - Wikirak

Play webЯcade now at play.webrcade.com / github

cross-platform, customizable ML solutions for live and streaming media. - Home / github / Introduction to MediaPipe

an experimental compiler from a potential C++ ‘syntax 2’ (Cpp2) to today’s ‘syntax 1’ (Cpp1) - cppfront / HN / twitter

the big problem with modulo biases is that they can allow you to recover private keys for certain schemes - Modulo Bias and how to avoid it

A strange game. The only winning move is not to play. How about a nice game of chess? - Joshua

bluetoothctl is a command line tool which is shipped with BlueZ – Bluetooth protocol stack for Linux.

Impression3D entre particulier / partage3d.fr/

Associez les deux freeplugs

• Connectez le câble secteur sur l’un des deux boîtiers puis branchez l’autre extrémité de ce câble sur une prise électrique murale (ou mieux, sur une multiprise branchée au secteur). Après avoir clignoté quelques secondes, la diode s’allume en rouge. -Une fois les deux Free-Plugs sous tension, procédez à leur association : maintenez enfoncé, sur un premier boîtier, la diode rouge pendant 2 secondes environ puis relâchez-la. La diode clignote : vous devez dès cet instant effectuer la même manipulation sur l’autre Free-Plug. Appuyez sur la diode pendant 2 secondes.
• Les boîtiers FreePlugs sont associés lorsque leurs deux diodes sont éclairées en vert et fixes. Si un seul témoin vert est allumé et l’autre rouge, l’étape d’association des deux FreePlugs doit être relancée.

Untangle your self-worth and your work

When you are passionate about your work, it can easily bleed into every other area of your life — you read about work-related topics in your free time, you think about a particularly challenging problem in the shower, you journal about your work, etc. It also changes ones social circle: hanging out with an ambitious and curious start-up crowd easily leads to work as the default topic in a gathering of friends. Once you have work deeply embedded in your interests and social life, it does not take a huge mental leap to “work is what defines me as an individual”.

That then leads to a precarious “all eggs in one basket” situation that leaves you vulnerable in cases of professional failure (“My start-up is not doing well; I am a failure”) or burnout (“I’m cynical about my work; nothing matters”).

It took quite a bit of time to disentangle my self-worth and my professional identity, but it makes life so much better. - Toxic Productivity / Many technical people mistake a passion for their craft with a passion for their work

First arrival (1984)

HEAVY MACHINE GUN!!! - Metal Slug Wiki / /r/metalslug/

PEUT ON CONSTRUIRE UN ORDINATEUR EN LÉGO ?

• TV

Klipper Tuning Guide

• How to multiply ANY numbers the fast way - Fast Math Trick
• How To Calculate Square Roots In Your Head
• Calculer 45² EN 10 SECONDES

Dans l’industrie ils auraient été des héros… - Debrief airfrance-vol du 31/12/2020

OpenIPC / r/smarthome

heat protection - History of a Lost Supermaterial & How To Make It (Starlite)

sketch / spline / constraint / revolve / loft - Fusion 360 Pumpkin Tutorial

BIM with FreeCAD - Introduction

The B-52 Stratofortress is expected to be in service well into the 2050s, and yet, the B-1 Lancer and the B-2 Spirit bombers are expected to retire in the early 2030s. The plane that spill nuclear around the world - Why This Obsolete Bomber Will Outlive EVERYTHING

Galaga Strategy Tips from Pro Player Jordan Dorrington

the elaborate handbooks and detailed scripts, the pig-butchering scams that emerge out of wrong-number texts aren’t the product of individual con artists or even of small informal groups. Rather, as has now been pretty extensively documented in the Asian press, they’re a key revenue stream of large hierarchical organizations — fraud businesses, basically — based in Southeast Asia.
Worse, the “dog-pushers” — the lowest-level scammers who initiate conversations with victims — are often workers from around the region, tricked into indentured servitude, held captive in dormitories and offices, and beaten by the managers and bosses. - What’s the deal with all those weird wrong-number texts? / HN

Teaching Tech 3D Printer Calibration

Your Ultimate Modular Workshop / r/gridfinity/ / wiki

furniture for our kids’ dollhouses. Here’s our 2nd giveaway model - animated / PapaPrints

Le contrôle automatique a permis le développement de machines rapides et précises. Mais il n’est pas qu’un simple dispositif technique, c’est aussi une passerelle vers quelque chose de plus grand… la cybernetique

Pac-Man/Tips

#speedboatrace

Settings for printing with 0.6 nozzle

First of all, the cross domain check is performed by the browser, not the server. - SO

Brother MFC-J4620DW troubleshooting - brother

Understanding SAMSUNG SMART TV Operating system

a lightweight & responsive user interface for Klipper, the 3D printer firmware. - Home / github

All animals are equal, but some animals are more equal than others. - George Orwell, Animal Farm

Numerically stable algorithm for solving the quadratic equation when a is very small or 0 - SE

what’s missing ?

an advanced open-source renderer. It uses modern rendering techniques to generate photorealistic images of complex scenes. - github / youtube

Cryptography folklore has it that simple substitution ciphers are trivial to break by looking at the letter frequencies of the encrypted text. - Verifying the Substitution Cipher Folklore

BMC, an additional server embedded in your real server (or server class motherboard).
BMCs are horribly insecure and probably intentionally so. - HN

The Gitlab Team Handbook

The distance from your eyes to your thumb is about 10 times the distance between your eyes. - lifehacker / HN

Code Once. Deploy Everywhere - home / try.haxe / HN

3D Printed Color Images!

Speed of C++, simplicity of Python, coroutine model of Go. - The C++ Asynchronous Framework / HN

The Enraged Rabbit Carrot Feed - The open source customizable MMU / ERCF EASY BRD

installation

As for tecnically inferior, the *ix approach seems to have made the right tradeoffs, via the hand of Darwin, rather than some brilliant engineering insight. - Why the Windows Registry sucks … technically / HN / 2

systemd-homed allows you to create “portable” user profiles which contain everything pertaining to a particular user, including his password. So user profiles (including your files, etc) can be moved between computers simply by rsync’ing that directory, or putting it on a network share. - HN

the memory management code of the Arm Mali GPU kernel driver, which is exploitable to map arbitrary physical pages to the GPU memory with both read and write access. - Corrupting memory without memory corruption

AI model drawing images from any prompt! - craiyon (Dall-E mini)

Orbion The OpenSource 3D Space Mouse

Solar Death Ray 10,000 suns 48” DIY Giant Archimedes Parabolic Mirror Reflector - GREENPOWERSCIENCE

It’s here. It happened. Did you notice? - Jeffrey Paul / HN

Si on ne s’occupe pas du problème, le problème s’occupera de nous - Jancovici : Concevoir pour rester en dessous de 2°C

On est jeune tant qu’on se croit eternel et invicible.

t’s visible on prints from all FFF printers on the market, cheap or expensive. It’s visible no matter the slicing software. It’s visible when printing from any material. - The Benchy hull line

How to choose and compare something - an example

a way to calculate propagations onto a mesh, by cutting it into small pieces, and analyzing the impact of each small piece over its neighbours. - Creating FEM analyses

• Slug - Dynamic GPU Font Rendering and Advanced Text Layout / HN

So here you are – sitting alone in the darkness, surrounded by the walls with mysterious texts, – and using the code editor to shine a beam of light onto this wall to read a small part of it. - IDE vs Fire Torch / HN

Do not believe anything you read on this website. Except maybe for the page you are reading right now. It’s incidentally the only page created by a human. - AI-Generated Lies Every Day / HN

Home

In the game, the player controls different starfighters from the Star Wars universe. - wikipedia

Find your fonts here - dafont.com

You will observe with concern how long a useful truth may be known and exist before it is generally received and praticed on. - Benjamin Franklin (1786) / history of leaded gazoline

alternatives to Patreon to get money and support. - HN

Once I had learnt to fly the Twinstar II, A camera was added to try and take some aerial photographs. - Aerial Photography / HN

How Round is Your Circle

The Algorithm for Hard Problems (Or, “regularized greedy algorithms and their applications.”) / HN

Pounds derives from the name of an ancient Roman unit of measurement, Libra pondo. Our word pound comes from pondo, and its seemingly unrelated abbreviation, lb, comes from the libra part.

Cricut line of Personal Paper cutters are a nice easy to use CNC paper cutter. - Cricut Hacks Wiki

• Compte personnel de formation (CPF)

given a 5l and a 3l bottle and a water source, get 4l bottle - Les 4 litres d’eau

Originellement, la banne désignait la bâche qui était tendue devant les devantures de petits commerces, type épiceries. C’est ce qui a donné son nom au store banne

Why nobody ever wins the car at the mall

list of the weaknesses in the 2022 CWE Top 25

For JPL’s highest accuracy calculations, which are for interplanetary navigation, we use 3.141592653589793
by cutting pi off at the 15th decimal point… our calculated circumference of the 25 billion mile diameter circle would be wrong by 1.5 inches.
with our planet Earth, It would be off by the size of a molecule - How many decimals of pi do we need? / nasa-jpl

Scanning Transmission Electron Microscope (STEM) - 50,000,000x Magnification

• schema-electrique.net

The Software Architect is responsible for defining the high level and detailed technical designs for supported teams and or programs. The Software Architect will collaborate with technical leadership to translate business requirements into technical solutions that align with product roadmap business goals and technology strategy. linkedin offer

Cron, however, fails if your system happens to not be running when the appropriate execution time occurs.
Anacron insures that the task will be executed when your system is again active. However, the anacron frequency of execution can be no less than daily.

Systemd timers offer the best of both cron and anacron. - Systemd Timers for Scheduling Tasks / systemd/Timers

Given N discs in a 2D plane, find intersecting discs.

You carry more computing power in your pocket than what we have on Voyager. And by that, I don’t mean your smart phone. I mean you car key fob. - HN

Dessiner un sketch à partir d’une photo

The point is that fingerprints may not mean the administrator of the device is present, in the same way that a password that cannot be changed also may not mean the administrator of the device has authorized an action. Fingerprints are useful in cases where the effort of copying a fingerprint is greater than the value of the target. They’re great for almost everyone with low value systems, like your average easily pickable front door lock. They’re good for keeping honest people honest.
Fingerprints are a problem for high value systems. - HN

moving out of electron

Writing a Physics Engine from scratch.

an alternative way to use Docker without writing config files - Home / HN

• the Golden Book of Chemistry Experiments

Sustainable Web Design — How to reduce the carbon footprint of your website

why intelligence isn’t just for humans

A distributed system is one in which the failure of a computer you didn’t even know existed can render your own computer unusable. — Leslie Lamport

Electrocute yourself debugging in a pre-computer era - Working On Gottlieb’s 1974 BIG SHOT Pinball Machine / 2 / 3

Technique très simple pour donner un aspect noir profond à toutes les essences de bois taniques Vinaigre blanc et paille de fer - On découvre l’ÉBONISATION

What is the worst-case performance for malloc on a modern machine in practice? - Benchmarking Malloc with Doom 3 - ForrestTheWoods

, the math you need to render isometric sprites on the screen, and how to find the isometric tile from a screen coordinate. - How Isometric Coordinates Work in 2D games

Same voice chip as QBert - wikipedia / youtube

BIENVENUE SUR INTERNET - MATHIEU SOMMET - SLG 4 ANS

For the most part I’ve tried to make all the drawing-related features fade into the background when you’re not drawing. It’s plain text, it’s mostly just for writing. Infinite undo, autosave, modern features like that.- editor / HN

• Programmer Competency Matrix
• Top 10 algorithms in Interview Questions
• How to Talk About Yourself in an Interview
• Programming, Motherfucker - Do you speak it?

• D.I.Y. Powerwalls - Building Tesla inspired 18650 Powerwalls.

This is when I discovered a crazy piece of technology, a phone line simulator. - blog / HN

• How to check if two line segments intersect
• How do you detect where two line segments intersect?

an open-source input device with software-configurable endstops and virtual detents. - SmartKnob

Thompson attack in 100 lines of code.- How To Build an Evil Compiler

Processor microcode is akin to processor firmware. The kernel is able to update the processor’s firmware without the need to update it via a BIOS update. A microcode update is kept in volatile memory, thus the BIOS/UEFI or kernel updates the microcode during every boot. - Debian

• How to understand relationships between ellipse and second moment matrix of Harris corner detector?

Bass

• Hexagonal Precision Bass Guitar / youtube
• Electric bass Printed / youtube

Alpha Legion Contemptor Dreadnought - r/PrintedMinis / New Contemptor Dreadnaught Kit / 2

Johannes Vermeer, 1665

3D printed Dupont connector for jumper cable - Nerd Connector / thingiverse

I see a dichotomy between Correctness and Usefulness. You can certainly have both, but different people concentrate on either correctness or usefulness. - HN

a multiplayer voxel RPG written in Rust. It is inspired by games such as Cube World, Legend of Zelda: Breath of the Wild, Dwarf Fortress and Minecraft. - Home

Using the Lattice2 workbench we build sketch elements that are linked to the linear array which will repeat the sketch element within one single extrude. This could be a possible solution for such things as guitar frets allowing you change the length of the neck and the fret layout would automatically update. - youtube

pendant l’accouchement les pressions exercé sur la tête du nouveau né lui font tourner la tête en fonction de comment il rentre dans le bassin de sa mère… cette rotation elle est indispensable pour l’accouchement pour que la tête et les épaules ai le plus petit diametre. - (commentaire) Le “réflexe du cintre” est… surprenant !

A 3D printer unlike any other, fits inside a spool box - Positron V3 intro & Design Story / github

I told you so - How to professionally say

J’ai été de ceux qui ont choisi de baisser la tête pour pouvoir passer la porte de mon époque. - Faber, le destructeur, Tristan Garcia, 2013

Six matrix factorizations dominate in numerical linear algebra and matrix analysis: for most purposes one of them is sufficient for the task at hand. - The Big Six Matrix Factorizations / HN

there is several high quality and well-developed formats - HN

You can do a lot with an empty file - rachelbythebay

Litestream is an open-source project that makes SQLite tenable for full-stack applications through the power of ✨replication✨ - fly.io / HN

tips

a metal rail of a standard type widely used for mounting circuit breakers and industrial control equipment inside equipment racks. - wikipedia

A few decades ago the most convenient way to keep track of time was a mechanical watch. Unlike their quartz and smart siblings, mechanical watches can run without using any batteries or other electronic components. - Bartosz Ciechanowski / HN

Etre mort c’est comme être con, on ne s’en rend pas compte. Ce sont les autres autours qui sont tristes.

• Test du poêle à granulés Rika Domo / rika
  • Les poêles à granulés à convection naturelle
• Les aides pour les poêles à granulés et les poêles à bois / 2 / prime CEE

You have 25 horses, you can only run them 5 by 5, and you can only rely on their finishing order.
What is the minimum number of races you have to perform to find the fastest 3? - interview Google DIFFICILE

High-resolution traces of what a process is doing - github / HN

That fish looks alive until you know it isn’t. - HN

6 Axis USB Mach3 Wireless Handwheel Controller - Merci Fred! / manual

Dependencies and outer loop vectorization: if you can’t beat them, join them - Johny’s Software Lab LLC

The numbers represented by posits are similar to floating points, but differ by the introduction of a so-called regime term. - The Cult of Posits / HN

When the shit hits the fan - La chronique d’Hippolyte Girardot

Given the coordinates of the positions of Alice, the rabbit and the hole, as well as the respective speeds of Alice and the rabbit, say whether Alice can catch the rabbit before it disappears. - Interception of a Linear Trajectory With Constant Speed

a success story of ontological remodeling – that is, using new language to describe an existing thing. The existing thing in this case is the puzzle game Sudoku - Desystemize #9

Fibonacci numbers appear unexpectedly often in mathematics, so much so that there is an entire journal dedicated to their study, the Fibonacci Quarterly. - wikipedia

What do abstractions actually look like in code?

They don’t - Abstraction: Not What You Think It Is

a norm is a total size or length of all vectors in a vector space or matrices. - Rorasa’s blog / wikipedia

Anonymous:

Once a mobile app is granted access to contacts, it has your entire social graph. Every app since 2012 has been building these shadow social graphs. - Facebook Shadow Profiles (HN)

an e-Ink “desk accessory” running on a Raspberry Pi - SystemSix / blog

Articulating an answer to “buy why not?” is usually just an exercise you perform for the benefit of juniors, outsiders, marketers, evangelists and people who happened to be used to that tool already. - HN / Brendan Gregg’s Blog

• Despite being easily removable since it is not soldered down, the Mac Studio’s SSD storage is not currently user-upgradeable due to a software block - Mac Rumors

I know what the correct 3D printer belt tension is! Let me explain what it is and how to set it! - Lost in Tech

Kaitai Struct: A new way to develop parsers for binary structures - HN / Wuffs (Wrangling Untrusted File Formats Safely)

Static B-Trees, a data structure for faster binary search - Algorithmica.org / HN

cheap CoreXY - r/ender6/ / klipper config / server / Moonraker

More practical ways to speed up a program than by going from O(nlog n) to O(nlog log n). - Algorithmica / HN

There are two ways of constructing a software design: One way is to make it so simple that there are obviously no deficiencies and the other way is to make it so complicated that there are no obvious deficiencies. - C.A.R. Hoare, The 1980 ACM Turing Award Lecture

Quel poste a souder choisir ? - Soudeur 2.0

How Jeff Dean’s “Latency Numbers Everybody Should Know” decreased from 1990–2020 / github

a triangular inter-dimensional demon, formerly existent only in the mindscape before succeeding in gaining access to the real world. - Gravity Falls

A common misconception is that BLAS implementations of matrix multiplication are orders of magnitude faster than naive implementations because they are very complex. - BLAS-level CPU Performance in 100 Lines of C / SO

MacPaint-themed interface for Tldraw / HN

Raytracer and Erosion speedup - Coding Adventure

The image files tricked the iPhone into giving access to its entire memory, bypassing security and allowing the installation of spyware that would steal a user’s messages. - HN / Project Zero

nCr a selection of items from a set that has distinct members, such that the order of selection does not matter (unlike permutations). - wikipedia / calculator

Automatically crops an image to a given size around the hightest detail region. - HN / Fred’s ImageMagick Scripts

Find all mines without detonating any of them. - Codingame

Knurling is normally conducted on a lathe and is part of the manufacturing process adding a pattern such as cross hatching or bumps to a surface to give it a finish look and allow the surface to be gripped easily. It’s something to do at the very end like fillets and chamfer - youtube

Surfacing Tutorial (Surface WB & Curves WB) - youtube

Advanced open-source gyro-assisted video stabilization - HN

For 3d printers like Ender 3 the cura profile removes part of the bed in order to accomodate the clips. - youtube

The GROUP BY clause reduces the number of rows returned by rolling them up and calculating the sums or averages for each group.
The PARTITION BY clause does not reduce the number of rows returned. - SQL PARTITION BY / Introduction to Window Functions

There’s the first price, usually paid in dollars, just to gain possession of the desired thing, whatever it is… But then, in order to make use of the thing, you must also pay a second price. This is the effort and initiative required to gain its benefits, and it can be much higher than the first price. - HN

“clean code” is a phase most programmers go through. Like adolescence, with it’s desire to find The One True Way. But after that most of us discover that the principles are pointless in and by itself and that it’s often preferable to ship “working software” instead. - Clean code is a phase

set browser.fixup.fallback-to-https to false - SO

gio trash some_file - ubuntu / linux

A formula that visually represents itself when graphed at a specific location in the (x, y) plane. - wikipedia / HN

Une position de l’espace où les champs de gravité de deux corps en mouvement orbital l’un autour de l’autre, et de masses substantielles, fournissent exactement la force centripète requise pour que ce point de l’espace accompagne simultanément le mouvement orbital des deux corps. - wikipedia

The thing about getting older that nobody warns you about is that you always feel like you’re the youngest person in the room until suddenly you’re the oldest. - HN

There isn’t a known optimum, but I’ve tried making GUI from scratch many times and am gradually getting better at it. This is a good opportunity for me to let out my thoughts all at once - r/gamedev

I’m keeping a job search diary on my blog - HN

You have 2 equal images in files, you don’t have a reference highest quality image and you want to keep the better one of the two? - SE

The expected behavior, does not make sense to me…

double x_rad = 90.0_deg_to_rad; - since C++11

Recycle Cardboard into Anything with 3D Printing! - youtube

In languages such as Python, JSON feels like a first class data type. We used all the operator magic of modern C++ to achieve the same feeling in your code. - JSON for Modern C++ / nlohmann/json / SO

Libraries in /usr/local/lib not found - SO

a demand-driven, horizontally threaded image processing library. Compared to similar libraries, libvips runs quickly and uses little memory. - libVIPS / github / blog / wikipedia

SQLite (written in C) is compiled to WebAssembly + a virtual file system that fetches chunks of the database with HTTP Range requests when SQLite tries to read from the filesystem. - Hosting SQLite databases on Github Pages / HN / 2

The primary feature for easy maintenance is locality: Locality is that characteristic of source code that enables a programmer to understand that source by looking at only a small portion of it. - Richard Gabriel

Real time high quality video upscaling.
An iterative algorithm that treats color information as a heightmap and ‘pushes’ pixels towards probable edges using gradient-ascent.- HN

Finance

Pour tester une équerre ou une règle, la retourner permet de verifier la symétrie de la perpendiculaire ou de la droite.

iwlwifi Microcode SW error detected

when generating a new client keypair, I only have to copy the public key to my certificate signing machine (one copy) rather than every host I plan to log into (many copies). This more than makes up for the minor certificate configuration necessary on new clients. - HN

PDF processing and analysis with open-source tools - HN

Android in Docker without QEMU/emulator

Poly (methyl methacrylate) (PMMA) belongs to a group of materials called engineering plastics. It is a transparent thermoplastic. PMMA is also known as acrylic, acrylic glass, perspex, or plexiglass, as well as by the trade names and brands Crylux, Plexiglas, Acrylite, Astariglas, Lucite, Perclax, and Perspex, - wikipedia

Alternative to Google ? - duckduckgo / HN

a food products database made by everyone, for everyone. - Home / Ça déballe ! -DEFAKATOR

Klipper setup for orbiter - Configuration

Lead or be led
Topic sentences
Get excited
Unmotivated details
Slides versus speaker
Managers as input/output machines
Daily progress tracking

• HN

Selfie Segmentation

I did not insist on purity of the current fashionable style…
at the time I was rather annoyed and purity is for nazis.
I don’t claim to know how everybody wants to write their code and I get rather annoyed when somebody comes in and think they know…
and I know they don’t! - Bjarne Stroustrup

it organizes the programs in your system in a new, logical way… each program gets its own directory tree, keeping them all neatly separated and allowing you to see everything that’s installed in the system and which files belong to which programs in a simple and obvious way. - Home / HN

charges you with mowing down waves of infected, blood-thirsty zombies in a last-ditch effort to survive Bayou City and uncover the horrific truth behind the origins of the House of the Dead. - wii

the bread and butter of each Research Engineers and Scientists working in Deep Learning. - Home / HN

Learn how to build an off-grid solar power system - HN

An Open Source Home Theater System. - Home
Plex is actually a (significantly diverged) fork of Kodi (then called XBMC). - HN

E466 est fortement soupçonné d’être à l’origine l’inflammation de l’intestin et d’en modifier le microbiote intestinal. - futura / List of additives

How Secure Is Email?

Animation technique

video demonstrates what kind of precision is possible on a DIY wire EDM machine. - baxedm / youtube

I have long since given up trying to convince people to switch to Linux as their Desktop OS…
I no longer care, and I have no reason to… The question which OS “won” has been decided long ago…the world runs on Linux, everything from our internet backbones to our phones and everything in between.
If companies want to waste money on licences, who am I to say no? - HN

Papiers à conserver

The true meaning of “materialism” is quite the opposite of how we use it today. A materialist was someone who loved and appreciated material, for example, a carpenter who loved wood and knew all the cuts and grains of various timbers. Today we use the word to mean someone who has a toxic, disprespectful relation with the material world, based on shallow ownership. - Bad tech is a class issue. .

“Which is most important,” asked Big Panda, “the journey or the destination?”
“The company.” said Tiny Dragon. - unkown

Que l’on soit minus ou géant, il faut être fort pour traverser le temps. - Droit Devant / Les Cowboys Fringants

a programmable robotics kit released by Lego - wikipedia

Our 3D printing costs calculator allows you to easily work out how much to charge a customer for a print. - 3DprintingPro

The OpenTom project has documented the TomTom hardware and software to allow custom software builds to run - opentom / 2021

real-time lighting engine for the PICO-8 - into the shadows

a tool that makes it easy to successfully relocate Linux ELF binaries from one system to another. This is useful in situations where you don’t have root access on a machine or where a package simply isn’t available for a given Linux distribution. - github / HN

value component of HSV is just a measure for the physical lightness of color, but not for the perceived brightness. Thus, fully saturated yellow has the same “value” as blue. - How To Avoid Equidistant HSV Colors

Turns ldd into a tree; explains why shared libraries are found or not - HN

Des IMPRESSIONS 3D aux FORMES HOLOGRAPHIQUES !!

3 Design Tips for Better 3D Printed Holes - CAD For Newbies

• clamp / serre-joint - Clamping Tips & Tricks
• toggle clamp / Pince de serrage a bascule / Pince à Genouillère

Paradoxaly it goes toward infinity extremely slowly - secrets of the Sum of Sums

Linux - Shared Memory (SHM) - in the end just a special tmpfs mount point of specific size as far as container (docker/k8) are concerned.

SO Newest Question

When we give up on understanding what we are actually doing when we write code, it just leads to bad software. - Object-Oriented Programming is Embarrassing

a lookup table is simply an initialized array that contains precalculated information. - A tutorial on lookup tables in C

Swapping all the bytes in the registers is a popular operation in networking called an endian swap and x86 happens to have just the instruction to do this! - Fast array reversal with SIMD!

Can I send my model from Inkscape directly to my 3D printer? - 2D printing on a 3D printer

a platform independent microbenchmarking library for C++11/14/17/20. - nanobench comparison / r/cpp / 2

Perf tool can analyze kernel, applications, system libraries, software events through commands and subcommands. It can also be used as a PMU (performance monitoring unit) on Linux. - How to

Tool changer V2 3 XYZ calibration Cube test / 2

Crazy difference between 5W LASER and 5W LED!

A library to benchmark code snippets, similar to unit tests. - google/benchmark

Domain / Path / Expires / Secure - A JavaScript developer’s guide to browser cookies

the hardest puzzle on the internet - I tried / The Invitation

a Ruby program that generates Rust program that generates Scala program that generates …(through 128 languages in total)… REXX program that generates the original Ruby code again. - github

How one could hypothetically make their own integrated circuits by themself. - robertelder / HN

This suffers from CPU branch-prediction misses and extra overhead. But since our goal was to collect all of the nodes at the ideal resolutions for any given 3D view, non-recursive traversal is a bigger win. - Was Google Earth Stolen? / HN

SIMs can send SMS on their own using a feature called “proactive MO-SMS”… it seems that they are trying to keep a database of what phones their customers are using, and where. - What is AT&T doing at 1111340002?

Cramer’s rule is a way of solving a system of linear equations using determinants. - Math.net / wikipedia

a freely-available, full-featured office suite. - doc

remember that for almost all of history, nothing happened. - HN

I want to highlight a localization algorithm I came up with which works really well, at least in this specific setting. I’ve been using it in races for a while and it really stepped up the speeds I was able to achieve without the car getting “lost” – about 22mph on the front straight of this small track. - Fast indoor 2D localization using ceiling lights

Education isn’t something you can finish - Isaac Asimov
Wisdom is not a product of schooling but of the lifelong attempt to acquire it - Albert Einstein

LVGL is an open-source graphics library providing everything you need to create embedded GUI with easy-to-use graphical elements, beautiful visual effects and low memory footprint. - Light and Versatile Graphics Library

Less than 100% reliability is essential for the sustainability of an off-the-grid solar system, because above a certain threshold the fossil fuel energy used for producing and replacing the batteries is higher than the fossil fuel energy saved by the solar panels. - How to build a low-tech website?

Octrees divide space into regular sized chunks. BVH divides space into chunks of varying size, but with a balanced population of bodies in each. The idealized BVH divides the population by 2 at each level. - HN / wikipedia

Au cours de ses voyages, le bois se brisait ou pourrissait et devait être remplacé. Lorsque Thésée rentra chez lui, le navire qui accosta au port n’avait pas un seul morceau du navire qui en était parti. Malgré tout, l’équipage ne doutait pas que c’était le même bateau. - L’identité et le bateau de Thésée / wikipedia

If you have enough money to buy a no-ads tier, someone will pay more to put an ad there - HN

The terminal emulator is a graphical application whose role it is to interpret data coming from the shell and display it on screen. - poor.dev / HN

Async Ruby adds new concurrency features to the language; you can think of it as “threads with none of the downsides”. It’s been in the making for a couple of years, and with Ruby 3.0, it’s finally ready for prime time. - Bruno Sutic / HN

Change Messy Software Without Breaking It - Understand Legacy Code

Responsible disclosure is a concept mostly proposed by companies looking to accommodate their own willful irresponsibility. This is even more true in the case of intentional privacy violations by software vendors. The responsible thing is to immediately put these companies on blast the moment this kind of spying is uncovered. - HN

Installing a regular Linux distribution on an Android device opens a whole new world of possibilities. You can turn your Android device into a full-blown Linux/Apache/MySQL/PHP server and run web-based applications on it, install and use your favorite Linux tools, and even run a graphical desktop environment. - Linux Mag

The 4.5” angle grinder is like an agressive little dog that’s just waiting for a chance to bite you.
The table saw is like an old pitbull that generally sleeps.
The 6”/7”/9” grinder is a skunk.

Everyone who’s ever given it the chance has a story about the time the angle grinder nipped at them. The people who pestered the old pitbull until it got sick of their crap have 9 fingers. Nobody has problems with the skunk because it’s pretty obvious what’ll happen if you disrespect it. - HN

demonstrate how easy it is to solder very small electronic SMD (surface mount device) components on your PCB board. It is easier to work with compared to through-hole components. The component insertion time is shorter, and there are no component’s leads to cut away after the soldering. This save time and cost. - DIY Surface Mount Soldering and PCB Assembly

• How Microsoft reduced Windows 11 update size by 40%

The size of the controversy tends to be inversely proportional to the size of the effect.
This seems to apply to a lot of things, … - HN

running TEMPEST, SEGA STARTREK, my game Word War vi, and some demos on a home made RGB laser projector driven by openlase modified to support color. - youtube

Write a program that prints the numbers from 1 to n. If a number is divisible by 3, write Fizz instead. If a number is divisible by 5, write Buzz instead. However, if the number is divisible by both 3 and 5, write FizzBuzz instead. - High throughput Fizz Buzz / 55 GiB/s FizzBuzz

Small edge are impacted by Equalize Filament Flow & print thin wall. Enabling it can change drastically the mechanical property of a print (see belt gear) - yves

Self-Made Embroidery Machine running on G-Code - inkstitch.org / github

Ceinture en caoutchouc, renforcé de fiber de verre, 6mm de large, pas de 2mm. Pour les applications d’impression 3D, le système de ceinture GT2 2mm fonctionne mieux que T5, T2.5.it donne une meilleure douceur et précision de positionnement, ce qui entraîne une meilleure qualité d’impression. Système de courroie de distribution GT2 particulièrement adapté aux applications de mouvement linéaire et de positionnement. - GT2 Timing Belt

An extension to drive a Silhoutte Cameo and similar plotter devices from within inkscape. 100% pure python, ontop of the libusb backend. - inkscape-silhouette

• best microscopy of 2016

EBCDIC is an ancient (and much hated) “standard” which should have been fired into the sun a long time ago. It baffles me that it was still being used in 1995 - let alone today. - EBCDIC is incompatible with GDPR / HN

Higher quantity of ideas == More engineers.
Higher quality of ideas == Fewer engineers. HN / Slow Down, Finish Faster

Professional Photo Management with the Power of Open Source - Home / HN / Photography (SE)

• How to convert symlink to regular file?
• Convert symlinks to hard links
• Convert absolute symlink to relative symlink - use symlink tool:
  • symlink -cr . and -t for dry run.
  • How change symlink path for many files?
• create a hard link to a symbolic link - work on linux, not portable.

Generate Unique images from any text - ROBOHASH

The reason why we can often get away with using languages like Python or JavaScript to drive resource-intensive computations, is because under the hood somebody took years to perfect a C implementation of a key procedure and shared it with the world under a permissive license. - Maintain it With Zig / HN

a library to manage state globally - Redux

Featuring Mr ROBOT! - Sega logo (1976–present) / Except for the “M,” Mr. Robot’s title font looks a lot like Sega font

IPFS is basically the answer to the question “what is the RIGHT way to decentralize the web?” - HN

Criteria for evaluation

• Quality
• Quantity
• Complexity
• Impact

Open addressing or ‘open bucket’ hash tables always seem to be a second consideration in textbooks or blogs. I find them generally faster, and more memory efficient, and easier to implement. - HN / wikipedia

This post will show how to configure Nexus OSS to act as a pull-through cache for either the Docker Hub or a private repository, or a combination of them. It will also show how to configure the Docker clients to use your own cache when retrieving images. - Using Nexus OSS as a proxy/cache for Docker images

With the exception of LineageOS, all of the handset manufacturers examined collect a list of all the apps installed on a handset. This is potentially sensitive information since it can reveal user interests, e.g., a mental health app, a Muslim prayer app, a gay dating app, a Republican news app. There is no opt out from this data collection. - lwn / A study of data collection by Android devices

Mais sais-tu ce qu’était le 20eme siecle ? …
On détruisait notre planète, on laissait les gens crever de faim alors qu’on avait tout pour créer une société plus juste. Notre technologie, elle nous dépassait.
Et le pire,
c’est que tout le monde le savait. Où en tout cas tout le monde pouvait s’en rendre compte. - Nexus VI

Node.js Tool & Package Manager - NPM

All the coal in the world was made at the same time (-365M..-360M). Plant invented lignin at that same time and which made them impossible to decompose and fossilized waiting for an evolution of fungus to decompose it. (A bit like our production of plastic now) - Steve Mould

Reveal Invisible Motion With This Clever Video Trick - Steve Mould

The best way to get management excited about a disaster plan is to burn down the building across the street. - DEFCON 19

list files in databases that match a pattern - Locate man

ruby-doc

Be careful when you need to store large numbers in SQLite. - SQLite, 64-bit integers, and the impossible number

How to find the two most dominant colors in an image?

A tool for defining parameters to running multi-container Docker application. - Docker Compose

Darknet is an open source neural network framework written in C and CUDA. - github

Html + CSS + Javascript => Browser - Complete web Developer (ZTM Udemy)

Excessive theory is worse than no theory because it makes things seem more difficult than they really are. - How to create an OS from scratch

I created a talking banana that reads youtube and twitch comments live on stream. This banana project took me on a wild ride. - Filtering profanity / HN

“JST” is not a connector specification. It is short for Japan Solderless Terminals Manufacturing Company, Ltd. - hackaday

How to animate a model from Magica voxel? - youtube

When we’re at the stage when something that can be implemented in a weekend is described as “a doctoral research project”, and then I am accused of “impugning the reader” for describing something as simple that is extremely simple, we’re done. Consider the bug report closed. - Windows Term Extremely slow performance (Casey Muratori) / It takes a PhD to develop that / HN

The entire internet scans all the common ports and this should be expected to continue indefinitely. - HN

The Raspberry Pi Camera Module 2 replaced the original Camera Module in April 2016. The v2 Camera Module has a Sony IMX219 8-megapixel sensor (compared to the 5-megapixel OmniVision OV5647 sensor of the original camera). - Camera

What it’s like to spend 40-50 hours in VR every week - Working From Orbit / HN

many people have interest in demoscene productions but have no idea how they are actually made. This is a braindump/post-mortem of our recent 64k intro Guberniya - An intro to intros

WinDirStat is a disk usage statistics viewer - Home/2 / blog / repo / github

A core component of making great decisions is understanding the rationale behind previous decisions. If we don’t understand how we got “here,” we run the risk of making things much worse. - Chesterton’s Fence / HN

Rome wasn’t built in a day. And it wasn’t built by the Romans. - HN

a primary reason why digital computers replaced analog computers: If you want another digit of accuracy out of an analog computer, you need components that are 10 times as accurate, requiring expensive precision resistors and capacitors. But if you want another digit of accuracy out of a digital computer, you just process four more bits and you can still use cheap, inaccurate components. - HN

Be careful what you copy: Invisibly inserting usernames into text with Zero-Width Characters - medium

All of these larger prints were made by printing the objects in smaller pieces on consumer-grade desktop machines, then assembling the pieces. - Cosmo Wenman / medium / thingiverse

a fast, open source, Ruby-based text processor for parsing AsciiDoc® into a document model and converting it to output formats such as HTML 5, DocBook 5, manual pages, PDF, EPUB 3, and other formats. - Asciidoctor / Ruby for ebook publishing

A search engine that favors text-heavy sites and punishes modern web design - marginalia / HN

Intel recognizes that debug capabilities contained within the hardware can be an attack surface used by adversaries to gain access to secure assets and private user data. - Intel® Debug Protection Technology

For those who are looking to similar tooling in back end space, check HN / wikipedia

Web scraping describes techniques for automatically downloading and processing web content, or converting online text and other media into structured data that can then be used for various purposes - Scrapism / HN

I am skeptical about the “strong encapsulation”:
The newest traditional languages (such as Modula 2) bend over backwards to ensure that modules hide internal routines and data structures from other modules. The goal is to achieve module independence (a minimum coupling). The fear seems to be that modules strive to attack each other like alien antibodies. Or else, that evil bands of marauding modules are out to clobber the precious family data structures.
This is not what we’re concerned about. The purpose of hiding information, as we mean it, is simply to minimize the effects of a possible design-change by localizing things that might change within each component. - Thinking Forth

My take on a SpotMicro with an optimized design for supportfree 3D-printing and integration of an ESP32-DevKitC. - michaelkubina / SpotMicroAI

I’ve always liked concepts like the golden ratio or the dragon curve, which are easy to understand and explain but are mathematically beautiful at the same time. - math

Mapping the Fibonacci lattice onto the surface of a sphere is an extremely fast and effective approximate method to evenly distribute points on a sphere. - Extreme Learning

endoscope mounted camera for nozlle watching - youtube

Diplopia can also occur when viewing with only one eye… multiple image perception includes the consideration of such conditions as … diffraction-based (rather than geometrical) optical models have shown that common optical conditions, especially astigmatism, can also produce this symptom. - wikipedia

a library facilitating complex TUIs on modern terminal emulators, supporting vivid colors, multimedia, threads, and Unicode to the maximum degree possible. - dankamongmen / HN

a free and open source (GPLv2) reverse engineering framework. - cea-sec

• NC - Normally Connected
• NO - Normally Open

cheking drive speed

You can override anything in the menu structure from your printer.cfg. - menu / default menu.cfg

Things You Should Know About Fragment URLs (#)

• A Fragment URL Specifies A Location Within A Page
• Fragments Are not Sent in HTTP Request Messages
• Anything After the First # is a Fragment Identifier

Full bed print

• check printer settings
• Remove Build Plate Adhesion (Skirt, Brim, Raft)
• Edit the Cura Definitions Within the File ? to suppress machine_disallowed_area

Mid pleasures and palaces though we may roam
Be it ever so humble, there’s no place like home
Home! Sweet Home!

La tricolorabilité est invariante. / le nœud de Conway n’est pas bordant - Micmaths

making filament using drinking bottles for 3D printers - mr3dprint

methods for solving a problem expressed as a finite sequence of instructions.

Tant qu’elle fournit du travail ou fait de la maîtrise d’ouvrage, son rôle est reconnu et accepté. Mais dans les cas où elle se contente de bénéficier d’une forme de situation de rente (le référencement), elle est de plus en plus perçue par les ingénieurs comme un “parasite” inutile. - A quoi servent encore les SSII ?

Superpowerful Flame 2800 C - hydrogen burns red - Produce Hydrogen from Water

In the code above, we are configuring our module on the way. Assume we have a specific test scenario that requires very specific configuration. We can do it using local classes. So the code is cleaner - An Alternative Conditional Compilation Approach with Modern C++

LLVM provides both a textual form that looks roughly like a C-family programming language, and a binary form (bitcode, in LLVM’s parlance) that’s denser and (ostensibly) faster to parse. The two forms are semantically identical, and trivial to produce and convert between. - the bitcode format

You can use “Select the bit position“ function from the Bit Twiddling Hacks page to select random set bit efficiently. - SO

Instead of chasing speed reading and memorization techniques, it is more important to first select the right books, and read only those. - Planned Reading: The Trick for Reading Nonfiction

Building and maintaining infrastructure services requires to strive for quality and ownership. But it’s not always easy to know what we are missing, and what assumption we are making that we don’t know of. - Service Ownership Checklist

for many outcomes, roughly 80% of consequences come from 20% of causes (the “vital few”) - wikipedia

Key-value stores are one of the simplest forms of database. - Implementing a Key-Value Store

• DevOps: Hired to do everything not involved in the feature development of main business. Range varies from Terraform to maintaining Jira, GSuite, Jenkins, ETL, BizOps. Maintains scripts and hacks everywhere.
• SRE: Orders teams to define SLOs, focuses only after incident procedures, not before. Insists on creating dashboards and putting them on TVs (when we had offices). Most eventually become vendor fans.
• Platform: We made this, we know better than you, you cannot use anything else. If you need new thing/improvement, create a ticket we will get back to you in 6 months to say we cannot do it due to other company wide very important initatives.
  HN

getting promoted—like other forms of external validation—shouldn’t be the ultimate goal in anyone’s career, because it’s not fulfilling. - Career Growth: What Paths After Senior Engineer

supports an arbitrary number of displays!

the best management technique for successfully developing a software system in the 1970s and 1980s (and perhaps in the following decades), is based on being lucky enough to have a few very capable people, and then providing them with what is needed to get the job done while maintaining the fiction to upper management that the agreed bureaucratic plan is being followed.

Surprisingly, very little has changed. - What can be learned from studying long gone development practices?

Can we use a program as a library ?

GNU Parallel was designed by keeping xargs in mind, so majority of the command line options and parameters might match with xargs command. - How To Run Multiple Commands In Parallel on Linux

Generates bitmaps that are locally similar to the input - WaveFunctionCollapse / HN

a list of Linux camera software where various kinds of webcam software, IP camera software, security camera software, and video surveillance software are included with focusing on various important features. - 20+ Best Linux Camera Software

Probleme: comment choisir D points d’arret sur un trajet, parmis N point intermediare donnés, vérifiant que ces points soient les plues éloignés les un des autres.

Algorithm to return all combinations of k elements from n - SO

L’histoire se décompose en trois époques phases, la formation, l’apogée, et le déclin du Donjon, qui correspondent à trois séries Potron-Minet, Zénith et Crépuscule. Celles-ci sont complétées par des séries annexes : Parade, Monsters, Antipodes −, Antipodes +, et Bonus. - wikipedia / donjon+

Don’t use VPN services

The problems of finding a longest common subsequence of two sequences A and B and a shortest edit script for transforming A into B - pdf / Code & Interactive Visualization

L’effort humain n’a pas de vraie maison
Il sent l’odeur de son travail
et il est touché aux poumons
Son salaire est maigre
Ses enfants aussi
Il travaille comme un nègre
et le nègre travaille comme lui
Jacques Prévert

• spec

The point of DRM isn’t to prevent piracy, but to control manufacturers, who cannot legally break DRM, so they have to comply with whatever the DRM licensing cartel demands. - HN

Simplicity sells. - Lessons learned from 15 years of SumatraPDF / HN / Home / github / wikipedia

ten years of experience or the same year of experience ten times - How Developers Stop Learning: Rise of the Expert Beginner

Among other features that can be quite handy, clipit offers the ability to synchronize the Primary Selection and the X Clipboard. This is functionally equivalent to unifying the two selections - Clipit

Graphics can be a tricky topic, particularly when attempting to find anything on the internet these days that provides solution in terms of integer-only maths. - Integer Graphics

The distribution is designed to be maintainable by a single person. There is no infrastructure and the entire distribution is merely a few Git repositories. - kisslinux.org / HN

• AKAI Professional

Advanced Configuration and Power Interface - acpi

Everywhere you look, ads are all around, even in Windows 10. But you don’t have to just accept it — in this guide, we show you have to remove them. - How to remove those nagging ads from Windows 10

The trick exploits the branch predictor to guess values, enabling more instruction parallelism and therefore removing a bottleneck on the L1 cache. - Beating the L1 cache with value speculation / HN

#5050, M’sieur - Somme des premiers entiers

Wine is a compatibility layer capable of running Windows applications on several POSIX-compliant operating systems, such as Linux, macOS, & BSD. Instead of simulating internal Windows logic like a virtual machine or emulator, Wine translates Windows API calls into POSIX calls on-the-fly, eliminating the performance and memory penalties of other methods and allowing you to cleanly integrate Windows applications into your desktop.

People think they need backups while in fact they need restores… - HN / HN

Made for engraving - Rare Antique Fractal Vise

By constraining your time, a full-time job limits the nature of experiences you can have. It imposes a schedule that your entire life has to fit around. Every decision involving time has to pass the “let me check with work” test. That means your time is not yours - you borrow it from your employer. - Work Didn’t Work

parfois noté (KP) est l’un des 21 problèmes NP-complets de Richard Karp, exposés dans son article de 1972. - wikipedia

an important part of erlang’s failure domain driven mentality is not just “let it crash”, but also tying together failure domains: what should you also bring down with you when you crash. - HN

Let’s make music with a free, cross-platform tool for your computer. - LMMS

A comma code is a type of prefix-free code in which a comma, a particular symbol or sequence of symbols, occurs at the end of a code word and never occurs otherwise. - wikipedia / HN

JACK Patchbay, with some neat features like A2J bridge support and JACK Transport. - KXStudio

• thomann - 2021 - 95€

Couper d’équerre au centième de degré. - Cray Birkenwald

Which class to use to handle date & time & zone

What would you do? - James Burke BBC Connections - Technology Traps Scene / HN

traite des questions d’utilisation optimale desressources - Introduction

(also called linear optimization) is a method to achieve the best outcome (such as maximum profit or lowest cost) in a mathematical model whose requirements are represented by linear relationships. - wikipedia

The birthday problem or birthday paradox concerns the probability that, in a set of n randomly chosen people, some pair of them will have the same birthday. - wikipedia

darktable edits your images non-destructively all the way through its pipeline. Your original image is never modified! Professional color management features ensure fidelity all the way to print and GPU accelerated processing means you can speed up your workflow using your video card. - darktable

scans your Lego bricks and helps you build new creations - Home / HN

Many optimization problems can be defined by just two things: a criteria that determines what constitutes a valid solution, and an objective function among valid solutions. The goal is to find a valid solution optimizing the objective function. - Why Many Greedy Algorithms Are Pickier Than They Need To Be

Fossil is a distributed version control system (DVCS) written beginning in 2007 by the architect of SQLite for the purpose of managing the SQLite project. - The History And Purpose Of Fossil / HN / The Untold Story of SQLite

A priority queue is a container adaptor that provides constant time lookup of the largest (by default) element, at the expense of logarithmic insertion and extraction. - cppreference.com

If the recursive implementation is so simple, why bother with an iterative one? Of course, to avoid stack overflow. - Iterative Tree Traversals: A Practical Guide

Dijkstra’s algorithm for the shortest-path problem is one of the most important graph algorithms… However, going from the pseudocode to an actual implementation is made difficult by the fact that it relies on a priority queue with a “decrease key” operation… this operation is generally not supported. - Actually Implementing Dijkstra’s Algorithm

This interactive biker movie had a personality very much its own. Many soon added it to the ranks of LucasArts’s most hallowed classics.

Sadly, though, I’m not one of these people…

The 5 Graph Algorithms that you should know

proverb says.

Decoupled UCT - Monte Carlo Tree Search for SimultaneousMove Games

AVX2 / AVX512 have vpgatherdd which does use a vector of signed 32-bit scaled indices. - SO

Differential file downloading over HTTP using the rsync algorithm (2010) - Home / HN / github

generate a zip stream and then stream it over http - HN / python-zipstream

dirs +0 - Make pwd result in terms of “~”

You can probabilistically compare two unsorted vectors (u,v) in O(n) - SO

Fondre du verre au micro-ondes

Fully Open Source E-Paper $50 Smartwatch - Watchy / 2 / HN / 2

A good optimizing compiler will transform tail-recursive functions to run as fast as imperative code. - SO

“Less is more” – Substractive solution is rarely first envisaged - software / youtube

Spec / manual - bought in 2021 - 689€

• CPU: Intel Core i3-1005G1 (Dual-Core 1.2 GHz / 3.4 GHz Turbo - 4 Threads - Cache 4 Mo - TDP 15W)
• GPU: Intel UHD Graphics
• Display: 14.0”, Full HD (1920 x 1080), IPS
• Storage: SSD M.2 de 256 Go
• RAM: 8 Go

Toltec is a repository of unofficial applications for the reMarkable tablet, similar to Homebrew for Mac or Linux. - Home / github

rM2 using rm2fb / doc

run your Catch2, Google Test and DOCtest tests using the Test Explorer for Visual Studio Code. It also have basic support for Google Benchmark. - Home

There is still some hope left:

• If you want to be rescued then press (1)
• If you want to join the zombie army press (2)
  Thank you for calling / HN

a library of C++14 components designed with practicality and efficiency in mind. - github

We don’t want others. We want one name, and we want it fast, because it gives us our security back. We can say, “Here was the one man unlike the rest of us. We’ve named him, and he’s no more. And his reasons, they’re gone, too.” - Arlington Road / imdb (7.2) / Ad hominem

URIs don’t change: people change them. - w3.org / HN

MacBook Pro

• 16’’ screen
• as heavy as DELL
• only 18Go RAM
• M3 / 12 cores

Shotcut is a free, open source, cross-platform video editor. - Home / HN

Micro is enjoyable as a full-time editor for people who prefer to work in a terminal, or those who regularly edit files over SSH. - Lesser Known Terminal Editors

neofetch
or cat /etc/lsb-release - check your version

cout « std::bitset<32>( 0b1000’0000’0000’0000 ) - Binary solo

Representing Tic-tac-toe in ternary form, and efficiently generating all possible boards. - yduf

Games played on three-in-a-row boards can be traced back to ancient Egypt - wikipedia

Video player with pitch-independent speed controls? - r/linux

A simple C++ library for terminal based user interface. - FTXUI / HN

… what you’re doing. And be aware that the likelihood that you know what you are doing is basically nil. - HN

But the fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses.
They laughed at Columbus, they laughed at Fulton, they laughed at the Wright brothers.
But they also laughed at Bozo the Clown. - Sagan / Crazy New Ideas

rendering flow charts, sequence diagrams, mermaid, PlantUML, WaveDrom, GraphViz, Vega & Vega-lite, Ditaa diagrams. You can also render TikZ, Python Matplotlib, Plotly and all sorts of other graphs and diagrams by using Code Chunk. - Markdown Preview Enhanced

• Pokegb: A gameboy emulator that only plays Pokémon Blue, in 68 lines of C++ / HN

Save the princess from the magician curse. - Prince of Persia in JavaScript

since it’s a POD, everything works just like it did in C. - SO

Atoms are made up of a nucleus containing protons and neutrons, surrounded by electrons. But how many of each?

The number of protons determines which element it is: an atom with six protons is an atom of carbon; seven makes it nitrogen; eight, oxygen. The number of electrons generally matches the number of protons, to make the atom electrically neutral. But how many neutrons are in the nucleus? Does it even matter? … It turns out that it matters a lot. - How counting neutrons explains nuclear waste

Instead of relying on programmers to follow a set of rules, we should automate the process to make it as simple and impersonal as possible. Luckily, the clang team has created a wonderful tool that we can leverage: clang-format - Enforcing a Code Formatting Standard

A software drum machine for Linux - Home

Guitarix is a virtual guitar amplifier for Linux running on Jack Audio Connection Kit. - Home / linuxaudio

Interface audio numérique USB - Thomann

Modern C is not a subset of C++ - The Brain Dump HN

Backdooring a smart camera by creating a malicious firmware upgrade - stacksmashing

There is nothing I find more liberating than to spend a Saturday afternoon coding on some toy project. - Why I prefer making useless stuff / HN

An AP can only use one band at a time: 2.4GHz OR 5GHz, a so-called “dual-band AP” is just one AP at 2.4GHz and another at 5GHz - Access Point

0bda:b812 wifi Adapter 802.11ac (867Mpbs) - AC1200 / Teardown

It should work on raspberry, and allows to use module compiled for the linux kernel (which are harder to include for OpenWrt). - OpenWrt in Docker / contain your router

Non is fast enough to run on low-end processors–while other DAWs require huge investments in hardware… take full advantage of the power and flexibility of JACK. - NON

• reCurse (1st)
  • Lessons From Implementing AlphaZero

• toptal.com / HN
• remotextra.com
• remote.co
• remoteok
• indeed.com
• turing
• flexjobs.com

Terms & Conditions Apply / HN

The Illusion Only Some People Can See - Veritasium

Incredibly complex, intricate shapes were being drawn in front of my eyes from a few simple lines of code, and they didn’t even look like spirals after some point. - The Hypnotic World of Degenerate Spirals / HN

The XY problem is asking about your attempted solution rather than your actual problem. - Asking Smart Question

Battery

• Before Replacing Your Phone Battery Watch This
• Asus ZenPad 8.0 P022 / replacement demo
  • 3900 mAh Asus ZenPad 8.0 P022 Battery - C11P1505 / amazon
    • 1ICP3/99/100
    • GB31241-2014
    • 0B200-01660200

A lot of these are outright stolen from Edward O’Campo-Gooding’s list of questions, as well as from various people at Hacker School. - Julia Evans

Retroreflectors that send light back in the direction it came from. - Steve Mould

Each inode stores the attributes and disk block locations of the object’s data. POSIX per-file system unique identifier for a file (each drive being an independant filesystem) - wikipedia / File System Continued

The file info functions look to the contents of a file and try to determine the mime-type from what it finds there. - inode/x-empty for empty files

Tools

• SQLiteStudio / github
• vscode-sqlite
• DBeaver - Supports all popular databases.

Schmidt Offset Shaft Couplings offer great flexibility in shaft displacement while maintaining undisturbed power transmission at constant angular velocity, including no performance loss by increasing shaft offset. - youtube / lego

QEMU is a generic and open source machine emulator and virtualizer. - qemu.org

If you have a tight loop, LRU is going to be perfect as long as the loop fits in cache, but it’s going to cause a miss every time if the loop doesn’t fit. A random eviction policy degrades gracefully as the loop gets too big. - Caches: LRU v. random / HN

• Building Trust and Commitment on Your Team (By Dan Appleman) - 4.5
• Culture of Learning: Executive Briefing (By Dan Appleman) - 4
• The Hidden Secrets of Technology Careers (By Dan Appleman) - 3.5

Adding manpower to a late software project makes it later. - Fred Brooks

UML’s promise was that that with detailed enough diagrams, writing code would be trivial or even could be automatically generated (there are UML tools that can generate code). It was developed during a time when there was a push to make Software Engineering a licensed profession. UML was going to be the “blueprints” of code, and software architects would develop UML diagrams similar to how building architects create blueprints for houses. But as it turned out, that was a false premise. The real blueprints for software ended up being the code itself. And the legacy of UML lives on in simpler boxes and arrow diagrams. - HN

Parsing gigabytes of JSON per second - github / simdjson.org / benchmark

Spec / manual - bought in 2019 - 560€

vector similarity search for Postgres / HN

Noise is an indispensable tool for creative coding. We use it to generate all kinds of organic effects like clouds, landscapes and contours. Or to move and distort objects with a more lifelike behaviour. - Noise in Creative Coding / HN

The door refused to open. It said, “Five cents, please.” … I’ll sue you,” the door said as the first screw fell out. Joe Chip said, “I’ve never been sued by a door. But I guess I can live through it.” - Philip K. Dick / HN

LilyPond is a music engraving program, devoted to producing the highest-quality sheet music possible - lilypond.org / wikipedia

An efficient query to compare content of tables with same schemas

Integer overflow (and underflow – I’ll lump them together) is one of those pesky things that creeps up in the real world and makes low-level software a little less clean and elegant than what you might see in an algorithms textbook. - Testing for Integer Overflow in C and C++ / wikipedia

how to build the Artificial Intelligence behind this Connect Four perfect solver

What do we do, when we want to find out a location associated with a wifi name? We go to wigle.net - Pi in the network closet

Given a string s containing only three types of characters: ‘(‘, ‘)’ and ‘*’, return true if s is valid. - 678. Valid Parenthesis String

• L’art de bien PARLER : Méthode PRATIQUE pour devenir un bon ORATEUR !
• Projection de la voix

The main goal is to offer a lightweight system, with critical part related to stability. - article

Flashlight is a new open source machine learning (ML) library, written entirely in C++, that was built by FAIR to power groundbreaking research by enabling teams to rapidly and easily modify deep and ML frameworks to better fit their needs. - facebook.com / HN

This is typically understood as incompetent people are too incompetent to determine that they are incompetent, but its lesser-known corollary is that competent people assume everyone else is competent too, and thus they don’t have to explain themselves.
Once you understand this, the reason for poor communication becomes clear. - HN / youtube / wikipedia

Bresenham’s line algorithm is a line drawing algorithm that determines the points of an n-dimensional raster that should be selected in order to form a close approximation to a straight line between two points. - wikipedia / HN / pdf