To be more precise, as written in the master plan (https://www.kerkour.fr/blog/bloom-a-free-and-open-source-goo...) we plan to make enough money with enterprise support and those willing to pay, to balance the loss of the free tier.

I can't swear it, but it's our goal.

Currently I didn't had time to implement subscription before lauching.

At least, as code is free (as in freedom) and open source, users with the knowledge will be able to self host.