Articles
Emergency Triage for Broken Assignments and Files
A calm, evidence-first protocol for protecting files, assessing damage, and choosing the next recovery step when student work breaks near a deadline.
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Troubleshooting
Articles
Start a Working Log Before You Change Anything
Create a chronological record that makes setup, troubleshooting, and AI-assisted work easier to understand and verify.
Articles
Recovering Git History and Lost Code
Learn how to inspect local Git history, reflogs, and recovery copies without rewriting the repository before you know which version is correct.
Articles
Set Up Linux Users, Groups, and sudo Safely
Inspect Linux identities, separate daily work from administrative elevation, and verify sudo access without weakening account security.
Articles
Understand Linux Filesystem Permissions
Read Linux ownership and mode bits, explain directory permissions, and practice least-privilege changes in a disposable folder.
Articles
The Student Should Own the System
Define student, parent, and mentor roles that turn computer setup and troubleshooting into transferable skills.
Articles
Inspect Linux Services, Processes, and Logs
Investigate Linux processes, systemd services, and journal entries with read-only commands before attempting a change.
Articles
Prefer Reversible Changes
Use inspection, checkpoints, small steps, least privilege, verification, and rollback to make technical changes safer.
Articles
Recover Linux from a Broken Setup
Prepare and rehearse a layered Linux recovery plan without modifying the installed system, then define stop conditions for real repair or reinstallation.
Articles
Terminal, Shell, and Command: Three Different Things
Learn the vocabulary that separates the terminal window, the shell interpreting input, and the commands doing the work.
Articles
Inspect Before You Change
Use read-only inspection, one small change, and an after-state check to make command-line work understandable.
Articles
`git status` and `git diff`: Your Safety Instruments
Inspect untracked, modified, staged, and unstaged changes before committing or accepting an AI edit.
Articles
Your First Merge Conflict Should Be Deliberate
Create and resolve a controlled Git merge conflict in a disposable repository so the real event is understandable.