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

Fix 'ffmpeg: command not found' on Linux

You try to run ffmpeg in the terminal and get ffmpeg: command not found...

MongoDB Authentication Failed: Administrator Checklist

Chrome Black Screen Instead of White: Quick Fixes

You open Chrome and instead of the usual white background, you see a black screen. Tabs load, but...

Fix Git Clone Permission Denied (publickey) on Mac

When you run git clone and see Permission denied (publickey), Git canno...

Fix Microsoft Teams Not Detecting External Webcam

You plug in your external webcam, open Microsoft Teams, and the video feed stays black or shows t...

How to Find Command Prompt Output Log File Location for Troubleshooting

When troubleshooting command-line issues, you often need to review the output from Command Prompt...