- thefuck has been removed, use pay-repects instead
- 'glxinfo' has been renamed to/replaced by 'mesa-demos'
- options have been moved out of the 'xserver' namespace
- use default mesa drivers, remove amdvlk
- systemd global config has been moved and is not string-based anymore
- git settings have been moved to sub-attrset
- ssh default options generate a warning now but are not needed -> disable
- unpin nixpkgs version for servicepoint flakes
