npub179dpusnkm80stttl43zg0r0qtf0ru5ve98zd7deay9kys7tftt5sshxu4m (npub179d…xu4m) I used xBrowserSync for a long time and it worked great especially for syncing between different browsers. Was lightweight to self host. There is no web UI, it’s all managed through the extension. Server side is just an API.
https://www.xbrowsersync.org