ASDF (Another System Definition Facility) is the Common Lisp
go build &c., and has been maintained by a
team of volunteers for almost a decade. The Common Lisp Foundation is
hosting an ASDF Appreciation Fundraiser to … show appreciation for
their hard & excellent work. If you use Common Lisp, I encourage you
to toss a couple of bucks in the pot. Even better, there’s a donation
match up to $5,000.