How to be Master of Linux 🐧? 1. Search the web for the error 2. Check the forums for the solution 3. Read answers other than the accepted solution 4. Try to understand the root cause of the problem 5. Repeat ♻️

We just created a course on Tmux. It is free for all. No sign up needed. Enjoy learning Linux with us 😎 linuxhandbook.com/courses/tm…

One of the biggest cybersecurity embarrassments of 2026 just happened. Sensitive credentials linked to the US Cybersecurity agency (CISA) were reportedly found sitting inside a PUBLIC GitHub repository. The exposed data allegedly included: • SSH keys • Plaintext passwords • Internal system credentials • Access linked to CISA and DHS environments And the worst part? Some of it may have been publicly accessible since November 2025. According to reports, the leak came from a contractor-managed GitHub repo that was improperly secured. In simple words: someone accidentally left the digital keys to critical systems lying around on the internet. What does this mean for users? There’s currently no evidence that citizen data was stolen. But incidents like this increase risks of phishing, impersonation attacks, and future breaches. It also shows how even top cybersecurity organizations can fail basic security hygiene. The agency responsible for protecting US infrastructure got caught exposing its own credentials online. Cybersecurity isn’t just about advanced AI threats anymore. Sometimes it’s still just… human stupidity.

You let Claude rewrite your entire codebase And now something's broken And you have no idea what it changed, why it changed it, or how to go back There's no git log. no blame. no undo. Just vibes and a prayer 🙏 This open source AI too, fixes this. It's like git for AI agents. Every tool call tracked, every line traced back to the prompt that wrote it, full rewind coming soon Give your agent write access AND an audit trail with re_gent 👉 github.com/regent-vcs/re_gen…

Watchtower was an awesome project! Docker users! What do you use now ? linuxhandbook.com/blog/watch…

If you love Ghostty terminal, you'll love this nifty web tool. It allows you to configure the most common options visually, and then get a configuration file that you can apply over your own. You can also upload an existing configuration and work on top of it 😎

Linux Tool Highlight of the Week ✨ Tach: Python Dependency Visualizer & Enforcer It is a command-line tool for defining and enforcing dependency boundaries in Python codebases. It helps projects describe allowed module relationships and detect violations as the code evolves, supporting structured and maintainable architectures. ⚡ Implemented with no runtime impact ♾️ Interoperable with your existing systems 🔥 Interactively define module boundaries 📐 Visualize your project's dependency graph 🔧 Able to be adopted incrementally