I have started using Mastodon, but a big pain is following the same people I have been following in Twitter. Some of them have Mastodon ids too, but it is a pain to manually find their Mastodon ids and follow them. Is there a lookup service that will automatically do this?
Fedifinder produces a file you can import into Mastodon: <a href="https://fedifinder.glitch.me/" rel="nofollow">https://fedifinder.glitch.me/</a>