This is some good marketing for Coolify, which the author makes as an open source platform as a service. I prefer Dokploy these days though, since it seems to be less buggy, as Coolify seems to have such bugs due to being on PHP.

https://coolify.io/

https://dokploy.com/

CapRover is another good alternative, and also much more lightweight than Coolify, easily runs on even a 512MB server: https://caprover.com/