Does anybody know if Pants supports dynamic target dispatching based on system arch? like:

if platform == "macos_arm64":
  ...
elif platform == "linux_x86_64":
  ...

Analogous functionality in Bazel is

config_setting

https://bazel.build/reference/be/general#config_setting

You can use

if

directly. To detect the current platform, potentially a reasonable way is to set an environment variable in

.pants.bootstrap

and then read it with

env(name_of_variable)

(In the BUILD file) https://www.pantsbuild.org/stable/docs/using-pants/key-concepts/options#pantsbootstrap-file