Once set up it is fine. The setup felt a little more hands-on and idiosyncratic compared to Heroku or Scalingo. Moving a free tier app from Heroku to fly.io, I

Once set up it is fine. The setup felt a little more hands-on and idiosyncratic compared to Heroku or Scalingo. Moving a free tier app from Heroku to fly.io, I also noticed a few small details that Heroku had conveniently taken care of, e.g. installing only production dependencies by default.