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

Fix ERR_CERT_AUTHORITY_INVALID on Localhost

When testing a local web app, you may see ERR_CERT_AUTHORITY_INVALID in Chrome or si...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer Certificate

How to Fix Cloudflare Error 521: Origin Server Unreachable

If you see Cloudflare error 521, your origin server is not responding to Cloudflare's request...

Fix Virtual Environment Not Activating in Terminal

Why Your Virtual Environment Won't Activate

You open a terminal, navigate to your pro...

How to Fix 'Git Remote Origin Already Exists' Error When Cloning

You run git clone and get fatal: remote origin already exists. This err...

Python Requests Timeout Not Waiting: Fixes and Checks

You set a timeout in Python's requests library, but the call either hangs foreve...