- distr_info: print empty package type if unknown
- distr_info: add NixOS support
- epm repack kubo: fix conflicts
- epm play codium: check if the package is already installed from repo
- epm play chromium-gost and yandex-browser: fix checking for the package from repo
- epm: add some nix support
- epm pack: add support for version as third arg
- epm play: add initial support for cascadeur