Package project as a Nix flake

[zDonik1]

Adds a flake.nix file to package the project as a Nix flake.

The project can be built through nix by running nix build. Note: currently building the project does not work. See below.

Issues with merging

There is still an issue with actually building the package since tgt requires that there is a .tgt/config directory in Home. This is currently achieved in the build script, but Nix does not allow modifying any directories other than special directories relevant to the build process. As such generating/copying the config files should be moved to the app itself, and generation happen on first launch.

resolves: #76

[FedericoBruzzone]

Thank you very much!!!
I accidentally marked it as ready, if you want to put it back in draft

[FedericoBruzzone]

Anyway, I'm not currently a nix user but I understand the problem.
Can you extends this PR moving the creation from compile time to runtime?

[zDonik1]

I am not much of a Rust developer and currenly have very limited time. I will definitely take a look at it when I am more free.

[FedericoBruzzone]

Great! If you need any help let me know.
Thanks again for the contribution

[FlameFlag]

Hey! I just wanted to drop by and say I'm also working a flake.nix

https://github.com/DontEatOreo/tgt/blob/f296bc84b1e8b0d20867d7c13b73e9aceee7eba4/flake.nix

My main improvements over the current flake are that:

• Only ONE input source, which keeps the footprint minimal and flake.lock small
• macOS Support (and Linux support ofc)
• Using overrideAttrs to patch tdlib directly instead of using a separate nixpkgs input (this ties back to first point)
• Patch up a source code that makes it impossible to run on Nix

What I haven't done yet:

• Figure out how to place all the default TOML files from config/ into ~/.config/.tgt/config via Nix
• How to deal with the fact that obviously users will want to use their own custom keybinds and should be able to pass their own keybinds that override the current ones

On the last point, one way to get around this would be to provide either or both NixOS modules and Home Manager modules, which will give us the abstraction to directly write to ~/.config