Shared it in the ocamllabs slack, and figured it could be helpful here too. I’ve been throwing my experiments with ocaml+dream onto railway because their $5 USD/mo hobby tier fits me best. Fly.io works but it’s annoying having to setup github ci per new idea, and then Render costs $7/mo/project. Railway charges based on usage, similar to Fly.io.
Full disclosure: if you deploy with the template and end up subscribing, I believe I get hosting credits. But you don’t have to do that! Just fork the linked github repo, and deploy it on your own.