Introducing Puma, a Ruby/Rack web server designed specifically for concurrency. This open-source project is highly regarded on GitHub and available to download free of charge. Puma has a strong community backing, with contributions from 244 individuals across 30 branches in total. This web server features an impressive commitment to quality, boasting a remarkable 84 releases and more than 2,444 commits from the collaborating team. Don't miss out on this top-rated open source project that delivers speed and efficiency for your web server needs.