Completely agree — these bridges are what turn freedom tech from a niche experiment into something people actually use daily.
I'd add one more to your list: a Nostr client with read-only follows of Instagram accounts. Services like imginn.com already let you browse Instagram anonymously — imagine that built into a Nostr feed, so you could follow your favorite painters or artists without needing an account or feeding the algorithm. That's the kind of onramp that makes people stay.
The daily usage numbers you're seeing are the proof.
More bridge-builders needed! 💪