# R7RS Libraries TODO: - scheme base - scheme char - scheme eval - scheme file - scheme load - scheme process-context - [scheme read](api/scheme/read.md) - scheme time - scheme write # SRFI Support Cyclone supports the following [Scheme Requests for Implementation (SRFI)](http://srfi.schemers.org/) libraries: ## [SRFI 18 - Multithreading support](http://srfi.schemers.org/srfi-18/srfi-18.html) TODO: # Cyclone-specific ## Built-ins Cyclone also supports several non-standard features: - `system` - what else? ## Cyclone API TODO: