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

How to Fix Nginx 'Upstream Connection Refused' Error

When Nginx returns a 502 Bad Gateway with upstream connection refused in the error l...

Cloudflare Origin Certificate Setup Checklist

If you're setting up a Cloudflare origin certificate to encrypt traffic between Cloudflare an...

Chrome Memory Not Decreasing After Closing Tabs – Fixes

You close a dozen tabs, but Chrome still eats 2 GB of RAM. This is normal up to a point—Chrome ca...

Docker Compose Environment Variable Not Updating? Fix It

How to Create a package.json for Your npm Project

If you're starting a Node.js project, you'll need a package.json file. This ...

Resolving Git Merge Conflicts in Binary Files

You're merging branches and Git reports a conflict in a binary file. Unlike text files, you c...