Workflow manuals for setup steps, repeatable tasks, and software operations.

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Python Virtual Environment Not Activating: Common Fixes

You run source venv/bin/activate (or venv\Scripts\activate on Windows) ...

Fix Cloudflare Origin Certificate Not Trusted by Browser

You've set up Cloudflare with an origin certificate, but browsers show a warning that the cer...

How to Fix Cloudflare 522 Error: Origin Server Timeout

If you see a Cloudflare 522 error, it means your origin server didn't respond in time. This u...

Fix Nginx Redirect Loop After SSL Certificate Install

You installed an SSL certificate, and now your site redirects in a loop. The browser shows 'E...

How to Set Node.js Max Heap Size Permanently

If your Node.js process crashes with memory errors like FATAL ERROR: CALL_AND_RETRY_LAST Al...