Trouble signing Mac bundle with sidecar and extra libs

[SeanPedersen]

I am having trouble signing my Mac build, when I run npm run tauri build:

Signing with identity "Developer ID Application: My Name (xxxx)"
Signing /Users/MacMini/Projects/NeoTree/frontend/digger-solo/src-tauri/target/release/bundle/macos/Digger Solo.app/Contents/MacOS/main
/Users/MacMini/Projects/NeoTree/frontend/digger-solo/src-tauri/target/release/bundle/macos/Digger Solo.app/Contents/MacOS/main: replacing existing signature
Signing with identity "Developer ID Application: My Name (xxxx)"
Signing /Users/MacMini/Projects/NeoTree/frontend/digger-solo/src-tauri/target/release/bundle/macos/Digger Solo.app/Contents/MacOS/digger-solo
/Users/MacMini/Projects/NeoTree/frontend/digger-solo/src-tauri/target/release/bundle/macos/Digger Solo.app/Contents/MacOS/digger-solo: replacing existing signature
/Users/MacMini/Projects/NeoTree/frontend/digger-solo/src-tauri/target/release/bundle/macos/Digger Solo.app/Contents/MacOS/digger-solo: code object is not signed at all
In subcomponent: /Users/MacMini/Projects/NeoTree/frontend/digger-solo/src-tauri/target/release/bundle/macos/Digger Solo.app/Contents/Frameworks/librosa/__init__.pyi
failed to bundle project: failed to sign app
    Error failed to bundle project: failed to sign app

From my tauri.conf.json:

"macOS": {
      "signingIdentity": "Developer ID Application: My Name (xxxx)",
      "files": {
        "./Frameworks/": "_internal/"
      }
    }

So in the build step many Python source files and dynamic libs are copied into the bundle but do not seem to be signed. Do I need to add a manual signing step?

I just tried running find ./src-tauri/_internal -type f -exec codesign -f -v -s "Developer ID Application: My Name (xxxx)" {} + with no luck before npm run tauri build.

This seems related (#2269)?

[raphaelmenges]

I also have a highly related question unanswered: #12001