This repo contains a copy of the Buck2 Prelude, which is often included as a submodule with a Buck2 project.
To obtain a copy of this repo, and set up other details of a Buck2, you should usually run buck2 init --git.
Most information can be found on the main Buck2 GitHub project.
Pull requests and issues should be raised at facebook/buck2 as that project is more closely monitored and contains CI checks.
Buck2 Prelude is both MIT and Apache License, Version 2.0 licensed, as found in the LICENSE-MIT and LICENSE-APACHE files.