I'm not the original author but after a quick look at the application code (https://github.com/mislav/rfc/ https://github.com/mislav/rfc/) it seems like mislav'

I'm not the original author but after a quick look at the application code (https://github.com/mislav/rfc/ https://github.com/mislav/rfc/) it seems like mislav's just serving the documents from the database. It also caches the results so the free Heroku plan should be more than enough to support this.