Really glad to see someone stepping up to fill this void! I've debated doing this myself many times but it's low on my list of priorities.

Please don't interpret these frank questions as criticism or mistrust up front, but we've been burned a few times with tools like this start open source and then realize there might be some money out there and go proprietary, usually with a rug pull. I don't mind offering paid hosting at all (in fact I think it makes sense to offer that) so long as the code all remains open source. The "open core" model may even be ok so long as it's truly just "enterprise" feature that are gated, though that's a hard line to tread.

What are your monetization plans? Are you committed to long-term being actually open source?

Personally, I would suggest licensing this as AGPL to ensure that if anyone does take it and try to stand up a paid/proprietary service based on your work, the license will at least force them to open their code. It's not perfect. but with MIT you have zero defense against that. It would also give people like me some peace of mind.