Heroku is OK as a deployment platform. Hex powers Erlang/Elixir communities on a small Heroku dyno ($7). And 99% of Elixir developers should not worry about hot code swapping anyway. Let your load balancer or your PaaS take care of it.

Hex runs on 1 small Heroku Dyno? That's amazing.

I believe that's alongside using Fastly for CDN work, which might pick up a majority of the work, I'm not sure.

Any other options? For the small team I work with managing infrastructure is not really an option.

I use docker and docker-compose for sideprojects that don't need zero downtime deploys. Installed on a tiny digital ocean droplet.

A multistage build makes it easy to compile a release on a macOS system and create a minimal alpine docker images with the unpacked .tar.gz release. (My app is an ~84MB docker images)