flake-hub/flake.nix

{
  description = "oleks's personal Flake hub – a place to publish custom packages and overlays";

  inputs = {
    fleet-pins.url = "git+https://git.oleks.space/oleks/fleet-pins?ref=main";
    nixpkgs.follows = "fleet-pins/nixpkgs-projects";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs =
    {
      self,
      nixpkgs,
      fleet-pins,
      flake-utils,
      ...
    }:
    let
      supportedSystems = [
        "x86_64-linux"
        "aarch64-linux"
        "s390x-linux"
      ];
    in
    flake-utils.lib.eachSystem supportedSystems (
      system:
      let
        pkgs = import nixpkgs { inherit system; };
      in
      {
        packages = rec {
          hello-world = pkgs.callPackage ./packages/hello-world.nix { };
          xonsh = pkgs.callPackage ./packages/xonsh.nix { };
          default = hello-world;
        };

        overlays.default = final: prev: {
          hello-world = final.callPackage ./packages/hello-world.nix { };
          xonsh = final.callPackage ./packages/xonsh.nix { };
        };

        devShells.default = pkgs.mkShell {
          name = "oleks-hub-shell";
          buildInputs = [ self.packages.${system}.default ];
          nativeBuildInputs = with pkgs; [
            nix
            fmt
          ];
          shellHook = ''
            echo "Welcome to the oleks Flake hub development shell."
          '';
        };
      }
    );
}