I've been exploring buck2 for work a lot recently. We're considering switching to either it or Bazel.<p>It'll be an incredibly risky decision to go with buck2 today, but it's so darn zippy in comparison to Bazel it's hard to not at least give it a real try.<p>My impression so far has been it's pretty robust in it's core, but anything that FB doesn't use is in a mediocre state. It's yet to be seen how willing they'll be to take PRs that are explicitly for community usage.