Can I remove the "app" process group, if I only care with "web" and "worker"?

  1. I don’t think you need to worry about it, if set to 0.
  2. app is the default process that exists in all Fly app configs I have seen. It may or may not be deployed (in your case, it isn’t).

I don’t know for sure, but it looks like multi-process Fly apps are likely to be phased out given these aren’t really that intuitive to work with, and have some rough edges and unfinished corners.

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