We stand on the shoulders of giants.
libevhtp: A more flexible replacement for libevent's httpd API.
LuaJIT: LuaJIT is JIT compiler for the Lua language.
imagemagick: A software suite to create, edit, compose, or convert bitmap images.
hiredis: Hiredis is a minimalistic C client library for the Redis database.
libmemcached: LibMemcached is designed to provide the greatest number of options to use Memcached.