Lightweight Scheme interpreter (R5RS subset) in ~5000 lines of C, designed as an embeddable scripting engine. Opcode-based dispatch, Schorr-Deutsch-Waite GC, and conditional compilation for footprint tuning (down to ~64KB). Supports closures, continuations, and macros. Use when building or studying embedded interpreters, analyzing GC algorithms, integrating Scheme into C applications.
