[TKAB]

I've found https://dokku.com to be a great (self-hosted) alternative to heroku. For hobby and small company size a cheap root server will do great. I've been running one at Hetzner for ~5EUR/month for more than a year now and had a very smooth experience.

[jacooper]

There is also https://caprover.com, which seems to be more advanced and supports compose and docker swarm.