Also a Dokku fan. I don't think this project is related or uses it under the hood ( https://github.com/coollabsio/coolify/search?q=dokku ), although it's clearly similar. The marketing page only mentions Node.js support, but the Readme mentions using Buildpacks (https://github.com/coollabsio/coolify ) although it still isn't clear if it supports languages other than Node JavaScript. I would assume though if the goal is to support buildpacks and be a true Heroku replacement it will soon support everything just like Dokku.
Definitely very cool and something to keep an eye on as it develops!
Definitely very cool and something to keep an eye on as it develops!