scheme@gentoo.org
Gentoo Scheme Project
Guile is a library designed to help programmers create flexible applications. Using Guile in an application allows programmers to write plug-ins, or modules (there are many names, but the concept is essentially the same) and users to use them to have an application fit their needs.
https://www.gnu.org/software/guile/manual/html_node/index.html
guile