We are going to host public buildbots for cross LLDB.
We start from x86_64 Linux cross AArch64 Linux. This activity is a part of preparation for that. Then x86_64 Windows cross AArch64 Linux will follow.
If everything will be as expected, at that point all known issues should be resolved, the infrastructure should be in place, and adding new configurations should be easy enough for those who will follow with more.