Knowledge base for software setup, errors, and daily tool work.

Recover Lost Changes After Git Detached HEAD

You've made several edits, then checked out an old commit or tag, and now Git says you're...

Fixing Python UnicodeDecodeError When Reading a File

You open a file in Python, call read(), and get a UnicodeDecodeError. T...

How to Show Hidden Icons on Taskbar in Windows 10

You may notice that some app icons in the system tray (notification area) are hidden behind an up...

pnpm audit fix not working: common causes and fixes

When you run pnpm audit fix and it fails, you might see messages like "No fixes ...

Fix Docker Volume Permission Denied for Postgres

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...