Guile Knots is a library providing tools and patterns for programming -with Guile Fibers. Guile Knots -provides higher level building blocks for writing programs using Guile -Fibers, including managing code that can’t run in a thread used by -fibers. Also included is a web server implementation using Fibers, +with Guile Fibers. Guile +Knots provides higher level building blocks for writing programs using +Guile Fibers, including managing code that can’t run in a thread used +by fibers. Also included is a web server implementation using Fibers, which while being similar to the web server provided by Fibers, can provide some benefits in specific circumstances.