bitwarden-desktop: add aarch64-linux support

pkgs/by-name/bi/bitwarden-desktop/package.nix

@@ -1,4 +1,5 @@
-{ lib
+{ stdenv
+, lib
 , buildNpmPackage
 , cargo
 , copyDesktopItems
@@ -93,6 +94,11 @@ in buildNpmPackage rec {
     libsecret
   ];
 
+  bitwardenDesktopNativeArch = {
+    aarch64 = "arm64";
+    x86_64  = "x64";
+  }.${stdenv.hostPlatform.parsed.cpu.name} or throw "bitwarden-desktop: unsupported CPU family ${stdenv.hostPlatform.parsed.cpu.name}";
+
   # node-argon2 builds with LTO, but that causes missing symbols. So disable it
   # and rebuild. Then we need to copy it into the build output for
   # electron-builder, as `apps/desktop/src/package.json` specifies `argon2` as
@@ -122,7 +128,7 @@ in buildNpmPackage rec {
     pushd apps/desktop
 
     # desktop_native/index.js loads a file of that name regarldess of the libc being used
-    mv desktop_native/napi/desktop_napi.* desktop_native/napi/desktop_napi.linux-x64-musl.node
+    mv desktop_native/napi/desktop_napi.* desktop_native/napi/desktop_napi.linux-${bitwardenDesktopNativeArch}-musl.node
 
     npm exec electron-builder -- \
       --dir \
@@ -163,7 +169,7 @@ in buildNpmPackage rec {
 
     mkdir $out
 
-    pushd apps/desktop/dist/linux-unpacked
+    pushd apps/desktop/dist/linux-${lib.optionalString stdenv.isAarch64 "arm64-"}unpacked
     mkdir -p $out/opt/Bitwarden
     cp -r locales resources{,.pak} $out/opt/Bitwarden
     popd
@@ -208,7 +214,7 @@ in buildNpmPackage rec {
     homepage = "https://bitwarden.com";
     license = lib.licenses.gpl3;
     maintainers = with lib.maintainers; [ amarshall ];
-    platforms = [ "x86_64-linux" ];
+    platforms = [ "x86_64-linux" "aarch64-linux" ];
     mainProgram = "bitwarden";
   };
 }