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

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...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

Fix pip Externally Managed Environment on Debian 12

If you're on Debian 12 and get error: externally-managed-environment when using ...

Fix pnpm Install Failures in CI/CD Pipelines

When pnpm install fails in your CI/CD pipeline, it usually stops the build. The error messages va...

Cloudflare SSL Full Strict Error 525 Fixes

If you see Error 525: SSL handshake failed when using Cloudflare with SSL set to...

Checklist for Pushing Large Files with Git

You've likely hit this: you try to push a commit, and Git rejects it because a file is too la...