I looked at Dokku and Flynn for personal (single host) projects and find both to be too complicated for my needs. I generally prefer deploying Docker containers over Heroku buildpacks.

I ended up just running a single Digital Ocean droplet with Traefik as a loadbalancer/entry point, and then running each of my projects with docker-compose. (And building each project with Docker)

With Traefik I can set up reverse proxying for each project just by adding a few labels to its docker containers, and Traefik manages LetsEncrypt for me.

Flynn seems to have stalled, unfortunately. It was a pretty straightforward setup, and I got apps running on there rather quickly. There's still no real support for letsencrypt, which is kind of a killer.

Dokku has no support for clustering, but it's amazingly simple to set up and start deploying apps. (Digital Ocean has a pre-built and up-to-date image ready to go.) I like it for the heroku-style buildpack deployment, although it also has dockerfile-based deployment. Great little system for low-risk projects.

Tried Dokku in the past, but it was too barebones for me. Flynn looked also good, but it seemed to complicated (more features than we need) and we settled for CDD.

What functionality was Dokku missing for you? It's has quite a few features now, and we're adding new functionality all the time.

Mainly a web interface. I never gave dokku-man a try, but it doesn't look as feature-rich as the web interface for CDD.

Is that something you'd be willing to pay for?

Do you mean theoretically? We already use CaptainDuckDuck. I can imagine to give a bounty for it, but I don't intend to switch anyways.

I mean theoretically, but makes sense.