The word "simply" is doing a bit too much heavy lifting there - I'd love to see an article about that solution that's as detailed as Hamel's Dokku one https://hamel.dev/blog/posts/dokku/

I love this idea, simple reliable pieces.

edit: looking into traefik docs and perhaps not what I would call simple, probably would use caddy as reverse proxy instead.

That's the opposite of simple.

that's what I do and its easier to setup and understand than dokku that's for sure. tried using dokku multiple times and ran into so many issues with it. with traefik you literally just have to copy and past few lines in a compose file and push to docker hub and traefik will pick it up.

Dokku handles a significantly larger scope than the setup you describe, including a plugin ecosystem: https://dokku.com/docs/community/plugins/