Telegram user Vysp3r in GamingForLinux's chat discovered that the last #Syncthing for #Android repo was deleted and the dev's profile set to private.
https://github.com/Catfriend1/syncthing-android
No one knows (yet) what just happened but this marks the death of Syncthing for Android.
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If you haven't heard, the official Syncthing for Andaoid development stopped months ago. And only Catfriend1's dev fork remained updated.