Iris and others can be set up as a PWA , might be worth mentioning.

No sign ups, email and server hassle like mastodon pub protocol, but can be set up to work with it and telegram among other crossposting integrations.

nostr:npub1tuta00sz4wvvzymqcfq42cqhxal6puqpylxs4yf0z28z3ryvfh9qkqmv92 is working on monero zaps too.