Connect with developers building/using self-hosted PAAS solutions

The OP is building a self-hosted PAAS similar to Coolify and is asking the community about their deployment choices. The commenter who mentioned 'Vercel for Nextjs and Fly.io for python' is an active community member sharing valuable deployment strategies. This commenter, or others like them, represent ideal collaborators: they are early adopters or builders of similar infrastructure, capable of providing feedback, testing, or even integrating with the OP's PAAS, 'to make my portfolio look nice'.