Adds nix flake based development environment setup

[PMassicotte]

I have switched to NixOS a few months ago, and this will use all the needed dev tools for this project.

This is not affecting the plugin, it is only useful for developers using nix flakes.

[jalvesaq]

Does it have to be in the R.nvim directory? What if we create a repository for extra code, such as this Nix flake setup, a Debian setup, examples of ~/.config/nvim directory (minimal config, complete IDE), etc.?

[PMassicotte]

Nix flakes must be at the repo root for nix develop to work seamlessly. Moving it elsewhere means developers would need nix develop github:org/extras-repo or clone a second repo, which adds friction. But if you prefer, I can just have these files in my local repo uncommitted. Absolutely no problems :)

[jalvesaq]

The files can be here. I'll merge the pull request.

[PMassicotte]

What if we create a repository for extra code, such as this Nix flake setup, a Debian setup, examples of ~/.config/nvim directory (minimal config, complete IDE), etc.?

I still think this would be a very good idea for Debian/nixos setup with examples.

[jalvesaq]

Any suggestion of name for this repository?

[PMassicotte]

Something like r-nvim-config-examples?

[jalvesaq]

Something like r-nvim-config-examples?

It can be this name. Would you want to start it? I think it would have one directory for each example.

[PMassicotte]

I went with https://github.com/R-nvim/R.nvim-config-examples.

It can be this name. Would you want to start it? I think it would have one directory for each example.

Good idea!

[gueyenono]

@PMassicotte Thank you so much for this. I can't wait to see some examples. Although I don't use NixOS, my entire computer configuration is managed by Nix home manager.

[PMassicotte]

@PMassicotte Thank you so much for this. I can't wait to see some examples. Although I don't use NixOS, my entire computer configuration is managed by Nix home manager.

Thank you!

Next week will be mostly a conference week, so I wont have much time, but I will work on that asap.