All tests run on an 8-year-old MacBook Air.
When I was building HiyokoMTP, I hit a limitation that seems obvious in hindsight: you can't use a native macOS folder picker to browse an Android device over MTP.
NSOpenPanel — the standard macOS file dialog — has no idea your Android device exists. It only sees what Finder mounts, and Finder doesn't mount MTP devices as a proper volume. So the entire native folder selection API is useless for this use case.
Why the Native Dialog Can't See Your Android Device
macOS exposes the file system to apps through a set of APIs that assume storage is mounted as a volume. MTP doesn't work that way. It's a stateful protocol layered over USB — not a file system mount.
