Free · Open · Practical
Hands-on tutorials for the tools every developer needs. No fluff, no paywall — just clean, practical guides.
Learn version control from scratch. Commits, branches, merges, and collaboration workflows.
Containerize your applications. Images, containers, volumes, and Docker Compose for local development.
Shortcuts, extensions, debugging, and customization to 10x your editor productivity.
Navigate the command line with confidence. File system, processes, permissions, and shell scripting.
Automate testing, building, and deployment. Write workflows that run on every push.
Master dependency management. Install, update, publish packages, and understand package.json deeply.