Free
Build Your Own X
GitHub guide list for rebuilding popular technologies from scratch
Community MediaRebuild tools from scratch
4 tools in our directory are marked as best for Programmers, from 1 section: Learning Resources (4).

GitHub guide list for rebuilding popular technologies from scratch

Free online book on building your own programming language

Computer science tutorials, practice problems and interview prep

MIT course on the shell, editors, Git and other developer tools
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