Gentoo Scheme Project Chibi-Scheme is a very small library intended for use as an extension and scripting language in C programs. In addition to support for lightweight VM-based threads, each VM itself runs in an isolated heap allowing multiple VMs to run simultaneously in different OS threads. Despite the small size, Chibi-Scheme attempts to do The Right Thing. The default settings include: - a full numeric tower, with rational and complex numbers - full and seamless Unicode support - low-level and high-level hygienic macros - an extensible module system Specifically, the default repl language contains all bindings from R7RS small, available explicitly as the (scheme small) library. The language is built in layers, however - see the manual for instructions on compiling with fewer features or requesting a smaller language on startup. ashinn/chibi-scheme