diff --git a/pkgs/by-name/al/alexandria/package.nix b/pkgs/by-name/al/alexandria/package.nix
index a97efd139000..345f66c6470a 100644
--- a/pkgs/by-name/al/alexandria/package.nix
+++ b/pkgs/by-name/al/alexandria/package.nix
@@ -27,16 +27,14 @@ rustPlatform.buildRustPackage rec {
     fetchSubmodules = true;
   };
 
-  prePatch = ''
-    chmod +w .. # make sure that /build/source is writeable
-  '';
-
   npmDeps = fetchNpmDeps {
     inherit src;
-    sourceRoot = "${src.name}";
     hash = "sha256-6r9bEY7e1Eef/0/CJ26ITpFJcCVUEKLrFx+TNEomLPE=";
   };
 
+  cargoRoot = "src-tauri";
+  buildAndTestSubdir = "src-tauri";
+
   useFetchCargoVendor = true;
   cargoHash = "sha256-VX/G4dF9DhlGfifp4xf9xkXli7BHFtKY2+HaMHqqPiA=";
 
@@ -61,12 +59,6 @@ rustPlatform.buildRustPackage rec {
     libappindicator-gtk3
   ];
 
-  npmRoot = "..";
-
-  sourceRoot = "${src.name}/src-tauri";
-
-  buildAndTestDir = ".";
-
   meta = {
     homepage = "https://github.com/btpf/Alexandria";
     changelog = "https://github.com/btpf/Alexandria/releases/tag/v${version}";