nix/NOTES.md

# ToDo's

- this looks awesome: https://github.com/erictossell/nixflakes/tree/main
- https://nixos.wiki/wiki/Binary_Cache
- build a good abstraction for systems 
  - allows setting nixpkgs.localSystem per systems
  - should yield a `nixosConfiguration.${hostname} = nixpkgs.lib.nixosSystem {...}`
  - example module abstraction
    ```nix
    # TODO think about partitions/hardware/system specific conf
    # TODO think about hardware.nix like things
    { config,
      inputs,
      lib,
      ...
    }: {
      home_conf = {
        # ...
      };
      os_conf = {
        # ...
      };
    }
  - example mkSystem abstraction
    ```nix
    let opts = {
      hostname = "test";
      opt = "znver2";
      users = {
        { name = "tristand", groups=[..] },
        { name = "tester", groups=[..] },
      };
      modules = [
        ./my_module.nix
      ];
    };
    in {
      mylib.mkSystem opts?            #
      # take a path? just let the user call import ?
    }
    ```
  - example localSystem conf
    ```nix
    # to allow building
    nix.extraOptions = ''
      system-features = system-features = gccarch-znver2
    '';
    # to actually build (after rebuilding with the feature before)
    localSystem = {
      inherit system;
      gcc = {
        arch = "znver2";
        tune = "znver2";
      };
    };
    pkgs-args = {
      inherit localSystem;
      inherit overlays;
      config = {
        # ....
      };
    };
    pkgs = import nixpkgs pkgs-args;
    nixpkgs.pkgs = pkgs;
    ```
- switch from security.sudo.* to security.sudo-rs.*