Syncthing Android App Discontinued

Does anyone have any other opensource recommendations?

rsync or rclone on termux

that would require you to set up a domain name and use DDNS and trust your registrar, or to just always have your computers at a static IP with no NAT blocking you whatsoever.

There's a fork called, rather creatively, Syncthing-Fork. It's available on F-Droid.

Or use Tailscale to solve both issues at once

This one is way more battery conscious as well. Works great, I prefer it.

I tried Termux and found the application files I wanted to rsync aren't visible in Termux, except maybe by rooting the phone. But I need to use banking and auth apps daily on it, so I assume that isn't an option.

I have heard good things about git-annex [0]

But don't expect the same polished user experience as with SyncThings

- [0] https://git-annex.branchable.com/Android/

You have to use `termux-setup-storage` to gain access to shared storage. If you're referring to an app's private app data folder, there's no way to access that without root via any app.