TensorStream: A Reimplementation of TensorFlow for Ruby

activerecord-import: Bulk Data Insertion with ActiveRecord

MiniSql: A Minimal, Safe SQL Executor for Postgres

RRRSpec: Distributed RSpec Execution Service

Spreadsheet Architect: Create Spreadsheets from Ruby Objects

Ruby's External Malloc Problem

Improving Ruby Concurrency

Productivity Meets Beauty—Learn Ruby Free for 10 Days

Arel with Wharel: Virtual Rows for Active Record

From ActiveRecord to Diesel (and Rust)