pbulk is the modular bulk build framework for pkgsrc. This package contains: - pbulk-scan, a program to scan the entire pkgsrc tree or a list of directories therein for packages and dependencies. Distributed operation using a master/client mode is supported. - pbulk-resolve, a program to resolve the dependencies from the output of pbulk-scan - pbulk-build, the build scheduler. Distributed builds via TCP are supported. - bulkbuild and related scripts to implement full and limited bulk builds on top of those programs. The pbulk framework is considered experimental.