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

Fix 'Port Already in Use' Error When No Process Shows

You try to launch Chrome or a Chrome-based tool (like Puppeteer, Selenium, or a local dev server)...

Fix systemd Service Restart Loop Due to Unit File Errors

You notice a service keeps restarting repeatedly, filling logs with start/stop messages. This oft...

Jupyter Kernel Not Starting: Quick Fixes

You open a notebook, try to run a cell, and the kernel dies or never connects. This is a common J...

Fix 'git remote add origin repository not found' Error