{
  description = "Brownpaper pastebin";

  inputs.flake-utils.url = "github:numtide/flake-utils";

  outputs = { self, nixpkgs, flake-utils }:
    (flake-utils.lib.eachSystem [ "x86_64-linux" ]
      (system:
        let
          pkgs = import nixpkgs { inherit system; };
          bp = pkgs.callPackage ./default.nix { inherit pkgs; src = ./.; };
        in
        rec {
          legacyPackages =
            { brownpaper = bp.client; brownpaper-server = bp.server; };
          apps = builtins.mapAttrs (_n: pkg: flake-utils.lib.mkApp { drv = pkg; }) legacyPackages;
          defaultApp = apps.brownpaper;
          packages = flake-utils.lib.flattenTree legacyPackages;
          defaultPackage = packages.brownpaper;
          devShell = with pkgs; mkShell {
            buildInputs = [ cargo rustfmt nettle llvmPackages_10.clang llvmPackages_10.libclang pkgconfig ];
            LIBCLANG_PATH = "${llvmPackages_10.libclang}/lib";
          };
        }
      ) // rec {
      nixosModules.brownpaper = import ./mod.nix;
      nixosModule = nixosModules.brownpaper;
    }) // rec {
      overlay = final: prev:
        let
          bp = final.callPackage ./default.nix { pkgs = final; src = self; };
        in
        {
          brownpaper = bp.client;
          brownpaper-server = bp.server;
        };
      overlays = {
        pinned = final: prev: (overlay (import nixpkgs { inherit (final) system; }) { });
      };
    };
}