A time-series database for high-performance real-time analytics packaged as a Postgres extension

Packing your Ruby application into a single executable.

ngx_mruby - A Fast and Memory-Efficient Web Server Extension Mechanism Using Scripting Language mruby for nginx

iodine - HTTP / WebSockets Server for Ruby with Pub/Sub support

BloomFilter(s) in Ruby: Native counting filter + Redis counting/non-counting filters