Building with Buck2

As per the title, is it possible to build Folly with Buck2?

There are lots of `BUCK` files in the repository, and they seem up-to-date, so I would assume it's possible to do so. However, whenever I try I stumble upon errors such as:
```
$ buck2 targets //...
File changed: root//.git/index.lock
Error parsing root//folly/settings/test
Error evaluating build file: `root//folly/settings/test:BUCK`

Caused by:
error: Variable `cpp_library` not found, did you mean `cxx_library`?
--> folly/settings/test/BUCK:32:1
|
32 | cpp_library(
| ^^^^^^^^^^^
|

Failed to parse 1 package
```

I'm especially interested in this as a big portion of the benchmarks seem to be enabled only through Buck2 (please correct me if I'm wrong!).

Any help is greatly appreciated!