{
  description = "Unnamed Chat Server API";

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

  outputs = { self, nixpkgs }:
    let
      lastModifiedDate = self.lastModifiedDate or self.lastModified or "19700101";
      version = builtins.substring 0 8 lastModifiedDate;
      supportedSystems = [ "x86_64-linux" "aarch64-linux" ];
      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
      nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; });
    in
    {
      packages = forAllSystems (system:
        let
          pkgs = nixpkgsFor.${system};
        in
        {
          default = pkgs.buildGoModule {
            pname = "chat-api-server";
            inherit version;
            src = ./.;
            vendorHash = null;
          };
        });

        devShells = forAllSystems (system:
          let
            pkgs = nixpkgsFor.${system};
          in
          {
            default = pkgs.mkShell {
              hardeningDisable = [ "fortify" ];
              buildInputs = [
                pkgs.bashInteractive
                pkgs.go
                pkgs.delve
              ];
            };
          });
    };
}