Heroku definitely does. Even inside a single dyno. Switch to at least 2x-sized dynos and use nginx-buildpack (https://github.com/ryandotsmith/nginx-buildpack h

Heroku definitely does. Even inside a single dyno. Switch to at least 2x-sized dynos and use nginx-buildpack (https://github.com/ryandotsmith/nginx-buildpack https://github.com/ryandotsmith/nginx-buildpack) with multi-buildpack (https://github.com/ddollar/heroku-buildpack-multi https://github.com/ddollar/heroku-buildpack-multi). You'll probably need to modify/fork the ruby buildpack to do asset compiles twice (if necessary) and check-in both apps into the same repo. And of course modify the nginx configuration.