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

How to Fix Cloudflare 521 Error (Port 443 Blocked)

When you see a Cloudflare 521 error, it means Cloudflare’s servers cannot connect to your origin ...

Fix Nginx Configuration Test Failure After Adding Proxy Pass

You add a proxy_pass directive to an Nginx server block, run nginx -t, ...

How to Fix Nginx Redirect Loop with Cloudflare

You set up Cloudflare for your site, and now visitors see a redirect loop error. The page keeps r...

Docker Compose 'Network Not Found' Error Fix

When running docker compose up, you might see an error like:

network "my...

Git index.lock File Exists Even After Deleting: Fixes

You delete the .git/index.lock file, but Git still says it exists. This can happen d...

Fix Node.js Heap Out of Memory When Processing Large JSON Files

If you're seeing FATAL ERROR: Ineffective mark-compacts near heap limit Allocation fail...