Hyprland/flake.nix

{
  description = "Hyprland is a dynamic tiling Wayland compositor that doesn't sacrifice on its looks";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    wlroots = {
      url = "gitlab:wlroots/wlroots?host=gitlab.freedesktop.org";
      flake = false;
    };
  };

  outputs = inputs @ {
    self,
    nixpkgs,
    ...
  }: let
    inherit (nixpkgs) lib;
    genSystems = lib.genAttrs [
      # Add more systems if they are supported
      "x86_64-linux"
    ];
    pkgsFor = nixpkgs.legacyPackages;
    mkDate = longDate: (lib.concatStringsSep "-" [
      (__substring 0 4 longDate)
      (__substring 4 2 longDate)
      (__substring 6 2 longDate)
    ]);
  in {
    overlays.default = _: prev: rec {
      wlroots-hyprland = prev.wlroots.overrideAttrs (__: {
        version = mkDate (inputs.wlroots.lastModifiedDate or "19700101");
        src = inputs.wlroots;
      });
      hyprland = prev.callPackage ./nix/default.nix {
        stdenv = prev.gcc12Stdenv;
        version = "0.8.1beta" + "+date=" + (mkDate (self.lastModifiedDate or "19700101"));
        wlroots = wlroots-hyprland;
      };
      hyprland-debug = hyprland.override {debug = true;};
      waybar-hyprland = prev.waybar.overrideAttrs (oldAttrs: {
        mesonFlags = oldAttrs.mesonFlags ++ ["-Dexperimental=true"];
      });
    };

    packages = genSystems (system:
      (self.overlays.default null pkgsFor.${system})
      // {
        default = self.packages.${system}.hyprland;
      });

    devShells = genSystems (system: {
      default = pkgsFor.${system}.mkShell.override {stdenv = pkgsFor.${system}.gcc12Stdenv;} {
        name = "hyprland-shell";
        inputsFrom = [
          self.packages.${system}.wlroots-hyprland
          self.packages.${system}.hyprland
        ];
      };
    });

    formatter = genSystems (system: pkgsFor.${system}.alejandra);

    nixosModules.default = import ./nix/module.nix self;
    homeManagerModules.default = import ./nix/hm-module.nix self;

    overlay = throw "Hyprland: .overlay output is deprecated, please use the .overlays.default output";
  };
}