1. s-exp syntax
    S-exp syntax is a topic for programs that let you translate s-expressions to other grammars
  2. s-http-client
    s-http-client is an HTTP client library
  3. s-http-server
    s-http-server is a trivial HTTP server by Sven Van Caekenberghe
  4. S-PROTOBUF
    S-PROTOBUF is a library to encode data in the Google Protocol Buffers wire format
  5. s-sysdeps
    S-SYSDEPS is an abstraction layer over platform dependent functionality
  6. s-utils
    Utilities by Sven Van Caekenberghe
  7. s-xml
    S-XML is a simple basic XML parser with both a function and (S)SAX like event interface as well as a DOM interface with LXML, SXML and an XML-ELEMENT struct DOM representation
  8. s-xml-rpc
    s-xml-rpc (https://common-lisp.net/project/s-xml-rpc) is an implementation of the XML-RPC protocol in Common Lisp for both client
  9. Sacla
    A partial metacircular Common Lisp implementation (Common Lisp written in portable Common Lisp) by Yuji Minejima
  10. safe-queue
    Thread-safe queues and mailboxes