Add nix flake (derivation + direnv)

[Sigmanificient]

As PKGBUILD, the flake.nix & flake.lock file provide a way to build a nix derivation (package) for NixOS.
I've made a Pull Request for ragnarwm within the official nixpkgs repository along side this pull request.

Build ragner using nix

nix build .

Note: Flakes are still an "experimental feature" of nix despite its wide use.

Moreover, this flake.nix provides a shell with the dependencies required to compile this project.
This means that in any Linux distributions, windows WSL or even OSX, and other system supporting the nix package manager you use use it to pull the dependencies and enters in a development shell with everything setup for you.

Entering the shell

nix develop
# do casual stuff
make

This can integrate with direnv to automatically loads thoses dependencies went you enter the directory, once enabled.
direnv can integrate within multiples shells (bash, zsh, fish, tcsh, ...)

How to setup automatic direnv in project:

echo "use flake" | tee -a .envrc
direnv allow

[cococry]

That's amazing. Thank you

[Sigmanificient]

@cococry Update on nixpkgs, got RagnarWm to works natively on NixOS, within an automated test!

[cococry]

Thanks a lot for the effort, really appreciating it! Yohann Boniface ***@***.***> schrieb am Fr. 18. Aug. 2023 um 19:34:

…

@cococry <https://github.com/cococry> Update on nixpkgs, got RagnarWm to works natively on NixOS, within an automated test! [image: image] <https://user-images.githubusercontent.com/53050011/261674669-9d04a1cd-fd00-4944-8556-9a55c490b234.png> — Reply to this email directly, view it on GitHub <#28 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AXNJRYXA3VRCA4LZGNQ3HRDXV6RSPANCNFSM6AAAAAA3IJCON4> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[Sigmanificient]

@cococry
Ragnar is finally available for NixOS, the package has been merge to nixpkgs unstable 👀