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

• Home Directories
  • Converting Existing Users to systemd-homed managed Users

see also:

• Systemd Will Change How Your Linux Home Directory Works