configuration.nix/flake.nix

# This flake was initially generated by fh, the CLI for FlakeHub (version 0.1.9)
{
  # A helpful description of your flake
  description = "My NixOS configuration";

  # Flake inputs
  inputs.stylix.url = "github:jalil-salame/stylix/fallback-fonts-v2";
  inputs.stylix.inputs.nixpkgs.follows = "nixpkgs";
  inputs.stylix.inputs.home-manager.follows = "home-manager";

  inputs.nixpkgs.url = "nixpkgs/nixos-unstable";

  inputs.jpassmenu.url = "github:jalil-salame/jpassmenu";
  inputs.jpassmenu.inputs.nixpkgs.follows = "nixpkgs";

  inputs.audiomenu.url = "github:jalil-salame/audiomenu";
  inputs.audiomenu.inputs.nixpkgs.follows = "nixpkgs";

  inputs.nixvim.url = "github:nix-community/nixvim";
  inputs.nixvim.inputs.nixpkgs.follows = "nixpkgs";
  inputs.nixvim.inputs.home-manager.follows = "home-manager";
  inputs.nixvim.inputs.pre-commit-hooks.follows = "pre-commit-hooks";

  # WARN: Flakehub is outdated (39 days out of date)
  # inputs.home-manager.url = "https://flakehub.com/f/nix-community/home-manager/0.1.*.tar.gz";
  inputs.home-manager.url = "github:nix-community/home-manager";
  inputs.home-manager.inputs.nixpkgs.follows = "nixpkgs";

  inputs.nixos-hardware.url = "github:NixOS/nixos-hardware";

  inputs.neovim-nightly.url = "github:nix-community/neovim-nightly-overlay";
  inputs.neovim-nightly.inputs.nixpkgs.follows = "nixpkgs";

  inputs.pre-commit-hooks.url = "github:cachix/pre-commit-hooks.nix";
  inputs.pre-commit-hooks.inputs.nixpkgs.follows = "nixpkgs";

  # Flake outputs that other flakes can use
  outputs =
    {
      self,
      nixpkgs,
      stylix,
      home-manager,
      nixos-hardware,
      pre-commit-hooks,
      jpassmenu,
      audiomenu,
      nixvim,
      neovim-nightly,
    }:
    let
      inherit (nixpkgs) lib;
      # Helpers for producing system-specific outputs
      supportedSystems = [
        "x86_64-linux"
        "aarch64-linux"
      ];
      forEachSupportedSystem =
        f:
        nixpkgs.lib.genAttrs supportedSystems (
          system:
          f {
            inherit system;
            pkgs = import nixpkgs { inherit system; };
          }
        );
      overlays = builtins.attrValues self.overlays;
    in
    {
      checks = forEachSupportedSystem (
        { pkgs, system }:
        {
          nvim = nixvim.lib.${system}.check.mkTestDerivationFromNixvimModule {
            pkgs = import nixpkgs { inherit system overlays; };
            module = ./nvim/nixvim.nix;
          };
          pre-commit-check = pre-commit-hooks.lib.${system}.run {
            src = builtins.path {
              path = ./.;
              name = "configuration.nix";
            };
            hooks.typos.enable = true;
            hooks.nixfmt.enable = true;
            hooks.nixfmt.package = pkgs.nixfmt-rfc-style;
          };
        }
      );

      packages = forEachSupportedSystem (
        { pkgs, system }:
        {
          inherit (import ./docs { inherit pkgs lib; })
            docs
            nixos-markdown
            nvim-markdown
            home-markdown
            ;
          # Nvim standalone module
          nvim = nixvim.legacyPackages.${system}.makeNixvimWithModule {
            pkgs = import nixpkgs { inherit system overlays; };
            module = ./nvim/nixvim.nix;
          };
        }
      );

      # Provide necessary overlays
      overlays = {
        nixvim = nixvim.overlays.default;
        neovim-nightly = neovim-nightly.overlays.default;
        jpassmenu = jpassmenu.overlays.default;
        audiomenu = audiomenu.overlays.default;
      };

      # Nix files formatter (run `nix fmt`)
      formatter = forEachSupportedSystem ({ pkgs, ... }: pkgs.nixfmt-rfc-style);

      # Example vm configuration
      nixosConfigurations.vm =
        let
          system = "x86_64-linux";
          config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [ "steam-original" ];
          pkgs = import nixpkgs { inherit system overlays config; };
        in
        lib.nixosSystem {
          inherit system pkgs;
          modules = [
            self.nixosModules.vm # import vm module
            {
              time.timeZone = "Europe/Berlin";
              i18n.defaultLocale = "en_US.UTF-8";

              users.users.jdoe.password = "example";
              users.users.jdoe.isNormalUser = true;
              users.users.jdoe.extraGroups = [
                "wheel"
                "video"
                "networkmanager"
              ];

              home-manager.users.jdoe = {
                home.username = "jdoe";
                home.homeDirectory = "/home/jdoe";

                jhome.enable = true;
                jhome.gui.enable = true;
                jhome.dev.rust.enable = true;
              };

              nix.registry.nixpkgs.flake = nixpkgs;

              jconfig.enable = true;
              jconfig.gui.enable = true;
            }
          ];
        };

      nixosModules =
        let
          nvim-config.imports = [
            nixvim.homeManagerModules.nixvim
            ./nvim
          ];
          overlays = builtins.attrValues self.overlays;
          homeManagerModuleSandalone = import ./home { inherit overlays nvim-config stylix; };
          homeManagerModuleNixOS = import ./home { inherit overlays nvim-config; };
          nixosModule = {
            imports = [
              (import ./system { inherit stylix; })
              home-manager.nixosModules.home-manager
            ];

            home-manager.useGlobalPkgs = true;
            home-manager.useUserPackages = true;
            home-manager.sharedModules = [ homeManagerModuleNixOS ];

            # Pin nixpkgs
            nix.registry.nixpkgs.flake = nixpkgs;
          };

          machines = [
            "capricorn"
            "gemini"
            "libra"
            "vm"
          ];
          mkMachine = hostname: {
            imports = [
              nixosModule
              (import (./machines + "/${hostname}") { inherit nixos-hardware; })
            ];
            home-manager.sharedModules = [ { jhome.hostName = hostname; } ];
          };
          machineModules = lib.genAttrs machines mkMachine;
        in
        {
          default = nixosModule;
          inherit nixosModule homeManagerModuleNixOS homeManagerModuleSandalone;
        }
        // machineModules;

      devShells = forEachSupportedSystem (
        { pkgs, system }:
        {
          default = pkgs.mkShell {
            inherit (self.checks.${system}.pre-commit-check) shellHook;
            buildInputs = with pkgs; [
              just
              self.packages.${system}.nvim
            ];
            QEMU_OPTS_WL = "-smp 4 -device virtio-gpu-rutabaga,gfxstream-vulkan=on,cross-domain=on,hostmem=2G,wsi=headless";
          };
        }
      );
    };
}