tempest/flake.nix at master · lavafroth/tempest · GitHub

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{
  description = "devshell for github:lavafroth/tempest";

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

  outputs =
    {
      nixpkgs,
      flake-utils,
      ...
    }:
    flake-utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = nixpkgs.legacyPackages.${system};
        architecture = builtins.elemAt (pkgs.lib.splitString "-" system) 0;
        version = "0.3.45";
        libvosk = pkgs.stdenv.mkDerivation {
          name = "libvosk";
          pname = "libvosk";

          src = pkgs.fetchurl {
            url = "https://github.com/alphacep/vosk-api/releases/download/v${version}/vosk-linux-${architecture}-${version}.zip";
            sha256 = "sha256-u9yO2FxDl59kQxQoiXcOqVy/vFbP+1xdzXOvqHXF+7I=";
          };

          nativeBuildInputs = with pkgs; [ unzip ];
          unpackPhase = "unzip $src";

          installPhase = ''
            mkdir -p $out/lib
            mv vosk-linux-x86_64-${version}/* $out/lib
          '';
        };
      in
      {
        devShells.default = pkgs.mkShell rec {

          packages = with pkgs; [
            libvosk
            rustc
            cargo
            pkg-config
            alsa-lib
            stdenv.cc.cc.lib
            openssl.dev
          ];

          LD_LIBRARY_PATH = "${nixpkgs.lib.makeLibraryPath packages}";
          LIBCLANG_PATH = "${pkgs.llvmPackages.libclang.lib}/lib";
        };
      }
    );
}