I'm trying to adopt et into my workflow instead of using gn/ninja. So far it's great (RBE works out of the box 🎉)!

While trying to convert my Android workflows I noticed that a lot of android configs are missing, but some of them show up under ci/. Also some are duplicated android_debug_arm64 and ci/android_debug_arm64. The help provides no information what the difference between these are.

Also, et seems to accept configurations not listed in the --config flag: For example for on my M1 host_debug_unopt_arm64.

Side note: there seems to be some overlap between the gn directories produced and the value for the config flag, but without ci/?

I have the following suggestions to improve the situation:

• Add documentation
• Provide an exhaustive list in help, without duplicates.