The OP was not combative at all, they actually asked pretty nicely…
You’re the one who is actually being combative
My bad, just got caught up in pondering about the second part. You can choose from 3 deployment options: cloud, on-premise, and hybrid. The first and the last are pretty self-explanatory and in hybrid you can host the open-source backend part(https://github.com/jet-admin/jet-bridge) on your servers and we host the interface