Maybe it’s the endpoint Syncthing uses for NAT traversal or fetching the relay list. Other than that I’m not sure but you could ask the developer, they respond to questions quickly.

I know I’m not directly answering your question but I switched from Catfriend’s last build to BasicSync. Sure, it doesn’t have the same bells and whistles as Syncthing Fork but importing worked fine and it’s been rock solid since. If you’ve ever used the Syncthing web UI on desktop you’ll be fine. Plus the developer is well known in the Android development circle.

Finally, repository specific access tokens were added! I was missing this feature from GitHub (fine-grained access tokens) and had resorted to making service accounts that had access to a single repo. Time to clean that up :)

Perhaps try Authnkey which is more recently updated. If that doesn’t work then some details like which security key you are using and over which protocol (USB or NFC) would be good to know.

Maybe people don’t care but some do. I am sure I am not alone in caring. I believe every user should have the right to know what is running on their system and where it came from. What they choose to do with that information is up to them.

Sigh. I knew uv and ruff were too good to be true. Just hope the community can fork before it all goes to crap.