- when the action fails, don't display a frightening traceback
- use only stable Nix commands to avoid extra Nix configuration when using flakes
- new option
pushFilter
: Regular expression to exclude derivations when pushing, for example "(-source$|nixpkgs.tar.gz$)". Warning: this filter doet not guarantee it will not get pushed in case the path is part of the closure of something that will get pushed.