{
  description = "Nix packages for Beat Saber tools";

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

    bs-manager-src = {
      url = "github:Zagrios/bs-manager";
      flake = false;
    };
  };

  outputs =
    {
      self,
      nixpkgs,
      bs-manager-src,
    }:
    let
      inherit (nixpkgs) lib;
      systems = [
        "x86_64-linux"
        "aarch64-linux"
      ];
      forSystems = lib.genAttrs systems;
    in
    {
      packages = forSystems (
        system:
        let
          pkgs = import nixpkgs {
            inherit system;
            config = {
              allowUnfree = true;
              permittedInsecurePackages = [
                "electron-39.8.10"
              ];
            };
          };

          bs-manager = pkgs.callPackage ./pkgs/bs-manager {
            src = bs-manager-src;
          };
        in
        {
          inherit bs-manager;
          default = bs-manager;
        }
      );

      overlays.default = final: _prev: {
        bs-manager = final.callPackage ./pkgs/bs-manager {
          src = bs-manager-src;
        };
      };
    };
}