However, I’m confused about how to deploy changes to my app to fly.io directly – I saved a
flyctl config save, but it doesn’t include a
[build] section saying which builder to use to be compatible with Heroku.
I think I’m using the
heroku16 buildpack, and that I need to add a
[build] section to my
fly.toml that says that, but I’m not sure exactly how to set up my