I don't have funds to keep development going at this moment. Maybe in the future.

Yes, one nsec does all the initial job but it gives you admin rights and you can then remove the bot's key from the admin list.

So, for example, if you now tag me (this account) on a note that says "#!mirror https://some-podcast.url/feed" my instance of rsstr will create a community for that podcast and make you admin.

You can then exclude me as admin.

Not sure if satellite.earth implemented that yet, but in theory that's how it should work.

NIP-72 is the solution to so many problems!