Rollback to single nix package for backend

nix/package.nix

@@ -1,63 +1,12 @@
-{
-  lib,
-  pkgsBySystem,
-}: let
-  system = "x86_64-linux";
-  pkgs = pkgsBySystem.${system};
-  androidSdk = pkgs.androidenv.androidPkgs.androidsdk;
-
-  oott-frontend = pkgs.stdenv.mkDerivation {
-    name = "oott-frontend";
-    version = "0.0.1";
-    src = ./../frontend;
-    doCheck = false;
-    dontFixup = true;
-
-    ANDROID_SDK_ROOT = "${androidSdk}/libexec/android-sdk";
-
-    nativeBuildInputs = [pkgs.cacert];
-
-    buildInputs = with pkgs; [
-      openssl
-      flutter
-      android-tools
-      androidSdk
-      jdk17
-    ];
-
-    buildPhase = ''
-      runHook preBuild
-      mkdir -p $out/web
-      HOME=$out flutter build web
-      cp -r build/web/* $out/web/
-      runHook postBuild
-    '';
-
-    outputHashAlgo = "sha256";
-    outputHashMode = "recursive";
-    outputHash = "sha256-CyFxZMFL9WAklny0XwM6CGrt38NzSYT1xGdXaLSVePI=";
-    # outputHash = pkgs.lib.fakeHash;
+{pkgs}:
+pkgs.rustPlatform.buildRustPackage rec {
+  pname = "oott";
+  version = "0.0.1";
+  src = ./../backend;
+  cargoLock = {
+    lockFile = ./../backend/Cargo.lock;
   };
 
-  oott-backend = pkgs.rustPlatform.buildRustPackage {
-    pname = "oott-backend";
-    version = "0.0.1";
-    src = ./../backend;
-    cargoLock = {
-      lockFile = ./../backend/Cargo.lock;
-    };
-    nativeBuildInputs = [pkgs.pkg-config];
-    PKG_CONFIG_PATH = "${pkgs.openssl.dev}/lib/pkgconfig";
-  };
-in
-  pkgs.stdenv.mkDerivation {
-    name = "oott";
-    buildInputs = [oott-frontend oott-backend];
-    src = ./../extras;
-    installPhase = ''
-      mkdir -p $out/bin
-      mkdir -p $out/web
-      cp -r ${oott-backend}/bin/* $out/bin/
-      cp -r ${oott-frontend}/web/* $out/web/
-    '';
-  }
+  nativeBuildInputs = [pkgs.pkg-config];
+  PKG_CONFIG_PATH = "${pkgs.openssl.dev}/lib/pkgconfig";
+}