Discovered the nostr:nprofile1qqsxhcu0333a7ldlsndha39xumammrgemj3mnq8045v9shzx7p9jd7gppemhxue69uhkummn9ekx7mp0qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qv4vyr yesterday and it is a gem of interoperability to follow and interact with accounts across decentralised social platforms (Nostr, Mastodon, ActivityPub ...). Amazing work nostr:nprofile1qqsqgc0uhmxycvm5gwvn944c7yfxnnxm0nyh8tt62zhrvtd3xkj8fhgprdmhxue69uhkwmr9v9ek7mnpw3hhytnyv4mz7un9d3shjqg4waehxw309aex2mrp0yhxg6t5w3hjuur4vggxkjsl !
All you have to do to is add the following to your Nostr relays under settings -> Network -> Add a relay -> wss://relay.ditto.pub/
Then go to https://mostr.pub/ and enter a mastodon account you wish to follow (ex: Mastodon@mastodon.social), and the site will return an npub you can follow in Nostr