Got it. I can relate: while Python 3 support is probably fixed now, I agree that Bazel tooling for adding toolchains has been always abysmal. Things somewhat ge

Got it. I can relate: while Python 3 support is probably fixed now, I agree that Bazel tooling for adding toolchains has been always abysmal. Things somewhat get better (https://docs.bazel.build/versions/master/toolchains.html https://docs.bazel.build/versions/master/toolchains.html) since it's now in Skylark, not in Java, but I still don't like it (aka not productive) Overall, custom toolchains are common (especially, in the embedded world), and a good build system should make that very easy.