The folder provides build scripts for building the BoringSSL library. The source code needs to be downloaded by the user. It is recommended to download via “pw package install boringssl”. This ensures that necessary build files are generated. It als downloads the chromium verifier library, which will be used as the default certificate verifier for boringssl in pw_tls_client. For gn build, set dir_pw_third_party_boringssl to point to the path of the source code. For applications using BoringSSL, add $dir_pw_third_party/boringssl to the dependency list.