[josevalim]

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.

[andruby]

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

[quaunaut]

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