Archy

Yep and can be easily firewalled to mitigate trust

It can track a bookmark last visited time and count a bookmark number times xlicjed. It is a bookmark sync centric service

piped.video still works for me: subscriptions, categories, comments. Watching is MPV

I don’t think you pay for the iOS app, only the server portion can be licensed AFAIK

I use FreshRSS - really nice app, using PWA on desktop and a plain bookmark on the tablet

Yes, it’s called unbound

It definitely has to be Jellyfin (server) + Finamp (client) + tailscale (mesh VPN)