neoidiosyn/flake.nix

{
  description = "I do not have to explain myself";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";

    lix = {
      url = "https://git.lix.systems/lix-project/lix/archive/main.tar.gz";
      flake = false;
    };

    lix-module = {
      url = "https://git.lix.systems/lix-project/nixos-module/archive/main.tar.gz";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.lix.follows = "lix";
    };
  };

  nixConfig = {
    extra-experimental-features = [ "pipe-operator" "pipe-operators" ];
    extra-substituters = [ "https://cache.kyouma.net" ];
    extra-trusted-public-keys = [ "cache.kyouma.net:Frjwu4q1rnwE/MnSTmX9yx86GNA/z3p/oElGvucLiZg=" ];
  };

  outputs = { self, nixpkgs, lix-module, ... }: let
    lib = nixpkgs.lib.extend (final: prev: {
      neoidiosyn = {
        systems = {
          riscv64 = "rv64gc";
          aarch64 = "armv8.2-a";
          x86_64 = "x86-64-v3";
        } |> final.mapAttrs' (cpu: arch: {
          name = "${cpu}-linux";
          value = {
            config = "${cpu}-unknown-linux-musl";
            useLLVM = true;
            linker = "lld";
            gcc = { inherit arch; };
          };
        });
      };
    });
  in {
    inherit lib;

    overlays.default = lib.composeExtensions
      lix-module.overlays.default
      (import ./overlay.nix { inherit lib; });

    legacyPackages = lib.neoidiosyn.systems
    |> lib.mapAttrs (system: crossSystem: let
      pkgs = import nixpkgs {
        localSystem.config = {
          riscv64-linux = "riscv64-unknown-linux-gnu";
          aarch64-linux = "aarch64-unknown-linux-musl";
          x86_64-linux = "x86_64-unknown-linux-musl";
        }.${system};

       inherit crossSystem;
        overlays = [ self.overlays.default ];
      };
    in pkgs // {
      config = let
        stdenv = import ./stdenv.nix { inherit lib pkgs; };
      in pkgs.config or { } // {
        replaceStdenv = stdenv;
        replaceCrossStdenv = stdenv;
      };
    });

    nixosModules = {
      default = import ./module.nix;
    } // lib.mapAttrs (system: pkgs: {
      nixpkgs = {
        inherit (pkgs)
          buildPlatform
          hostPlatform
          overlays
          config;
      };
    }) self.legacyPackages;

    hydraJobs = lib.mapAttrs (system: pkgs: {
      inherit (pkgs) stdenv;
      nixos = let
        nixos = lib.nixosSystem {
          modules = [
            self.nixosModules.default
            self.nixosModules.${system}
            ./configuration.nix
          ];
        };
      in nixos.config.system.build.toplevel;
    }) self.legacyPackages;
  };
}