Question: Is it possible to name BUILD files something other than

BUILD

? Is there some config property in

pants.toml

I could change to make this happen?

Yep https://www.pantsbuild.org/dev/reference/global-options#build_patterns

I use something like this:

[GLOBAL]
pants_version = "2.21.0"
[...]
build_patterns = ["BUILD", "BUILD.*", "*.BUILD"]

Awesome. Thank you!