nixos-config/flake.nix

{
  description = ''
    For questions just DM me on X: https://twitter.com/@m3tam3re
    There is also some NIXOS content on my YT channel: https://www.youtube.com/@m3tam3re

    One of the best ways to learn NIXOS is to read other peoples configurations. I have personally learned a lot from Gabriel Fontes configs:
    https://github.com/Misterio77/nix-starter-configs
    https://github.com/Misterio77/nix-config

    Please also check out the starter configs mentioned above.
  '';

  inputs = {
    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-25.11";
    nixpkgs-45570c2.url = "github:nixos/nixpkgs/45570c299dc2b63c8c574c4cd77f0b92f7e2766e";
    nixpkgs-locked.url = "github:nixos/nixpkgs/2744d988fa116fc6d46cdfa3d1c936d0abd7d121";
    nixpkgs-9e58ed7.url = "github:nixos/nixpkgs/9e58ed7ba759d81c98f033b7f5eba21ca68f53b0";
    nixpkgs-master.url = "github:nixos/nixpkgs/master";

    m3ta-nixpkgs.url = "git+https://code.m3ta.dev/m3tam3re/nixpkgs";
    # m3ta-nixpkgs.url = "path:/home/m3tam3re/p/NIX/nixpkgs";
    llm-agents.url = "github:numtide/llm-agents.nix";

    #
    nur = {
      url = "github:nix-community/NUR";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    agenix.url = "github:ryantm/agenix";

    disko = {
      url = "github:nix-community/disko";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    nixos-generators = {url = "github:nix-community/nixos-generators";};

    hyprpanel.url = "github:Jas-SinghFSU/HyprPanel";
    rose-pine-hyprcursor.url = "github:ndom91/rose-pine-hyprcursor";
    nix-colors.url = "github:misterio77/nix-colors";

    agents = {
      # url = "path:/home/m3tam3re/p/AI/AGENTS";
      url = "git+https://code.m3ta.dev/m3tam3re/AGENTS";
      flake = false;
    };
  };

  outputs = {
    self,
    agenix,
    home-manager,
    nixpkgs,
    m3ta-nixpkgs,
    nur,
    agents,
    ...
  } @ inputs: let
    inherit (self) outputs;
    systems = [
      "aarch64-linux"
      "i686-linux"
      "x86_64-linux"
      "aarch64-darwin"
      "x86_64-darwin"
    ];
    forAllSystems = nixpkgs.lib.genAttrs systems;
  in {
    packages =
      forAllSystems (system: import ./pkgs nixpkgs.legacyPackages.${system});
    overlays = import ./overlays {inherit inputs outputs;};
    homeManagerModules = import ./modules/home-manager;

    nixosConfigurations = {
      m3-ares = nixpkgs.lib.nixosSystem {
        specialArgs = {
          inherit inputs outputs;
          system = "x86_64-linux";
          hostname = "m3-ares";
        };
        modules = [
          ./hosts/m3-ares
          agenix.nixosModules.default
          m3ta-nixpkgs.nixosModules.default
        ];
      };
      m3-atlas = nixpkgs.lib.nixosSystem {
        specialArgs = {
          inherit inputs outputs;
          system = "x86_64-linux";
        };
        system = "x86_64-linux";
        modules = [
          ./hosts/m3-atlas
          inputs.disko.nixosModules.disko
          agenix.nixosModules.default
          m3ta-nixpkgs.nixosModules.default
        ];
      };
      m3-kratos = nixpkgs.lib.nixosSystem {
        specialArgs = {
          inherit inputs outputs;
          system = "x86_64-linux";
          hostname = "m3-kratos";
        };
        modules = [
          ./hosts/m3-kratos
          agenix.nixosModules.default
          nur.modules.nixos.default
          m3ta-nixpkgs.nixosModules.default
        ];
      };
      m3-helios = nixpkgs.lib.nixosSystem {
        specialArgs = {
          inherit inputs outputs;
          system = "x86_64-linux";
        };
        system = "x86_64-linux";
        modules = [
          ./hosts/m3-helios
          inputs.disko.nixosModules.disko
          agenix.nixosModules.default
          m3ta-nixpkgs.nixosModules.default
        ];
      };
    };
    homeConfigurations = {
      "m3tam3re@m3-daedalus" = home-manager.lib.homeManagerConfiguration {
        pkgs = nixpkgs.legacyPackages."x86_64-linux";
        extraSpecialArgs = {
          inherit inputs outputs;
          system = "x86_64-linux";
          hostname = "m3-daedalus";
        };
        modules = [./home/m3tam3re/m3-daedalus.nix];
      };
    };
    devShells = forAllSystems (system: let
      pkgs = import nixpkgs {
        inherit system;
        config.allowUnfree = true; # Allow unfree packages in devShell
      };
      m3taLib = m3ta-nixpkgs.lib.x86_64-linux;
      rules = m3taLib.opencode-rules.mkOpencodeRules {
        inherit agents;
        languages = ["nix"];
      };
    in {
      default = pkgs.mkShell {
        buildInputs = with pkgs; [
          alejandra
          nixd
          openssh
          agenix.packages.${system}.default
        ];
        inherit (rules) instructions;
        shellHook = ''
          ${rules.shellHook}
          echo "======================================"
          echo "🧑‍🚀 Nix Development Shell with Opencode Rules"
          echo "======================================"
          echo ""
          echo "Active rules:"
          echo "  - Nix language conventions"
          echo "  - Coding-style best practices"
          echo "  - Naming conventions"
          echo "  - Documentation standards"
          echo "  - Testing guidelines"
          echo "  - Git workflow patterns"
          echo "  - Project structure guidelines"
          echo ""
          echo "Generated files:"
          echo "  - .opencode-rules/ (symlink to AGENTS repo)"
          echo "  - opencode.json (configuration file)"
          echo ""
          echo "Useful commands:"
          echo "  - cat opencode.json        View rules configuration"
          echo "  - ls .opencode-rules/      Browse available rules"
          echo "  - nix develop              Re-enter this shell"
          echo ""
          echo "Remember to add to .gitignore:"
          echo "  .opencode-rules"
          echo "  opencode.json"
          echo "======================================"
        '';
      };
    });
  };
}