Essential metrics for a healthy site.

A collection of libraries and tools that help you build adaptive, accessible, and robust user experiences.

Timeouts for popular Ruby gems

Learn where some of the network sysctl variables fit into the Linux/Kernel network flow. Translations: 🇷🇺

CDN Up and Running - Building a CDN from Scratch to Learn about CDN, Nginx, Lua, Prometheus, Grafana, Load balancing, and Containers.

QUIC and HTTP/3 implementation in Python

Neqo, the Mozilla Firefox implementation of QUIC in Rust

Plezi - the Ruby framework for realtime web-apps, websockets and RESTful HTTP

Structurizr DSL

A utility-first CSS framework for rapid UI development.

🎨 Diagram as Code for prototyping cloud system architectures

A developer's guide to management: an open-sourced handbook for leading software engineering teams.

Magnetic Track Data parsing library

Generate complex gmail filters via a neat little ruby DSL

Readings in Databases

Bartosz Milewski's 'Category Theory for Programmers' unofficial PDF and LaTeX source