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

Fix Cloudflare Origin Certificate with Let's Encrypt

If your origin server is rejecting the Cloudflare origin certificate—perhaps because of a SAN mis...

How to Remove the Externally Managed Environment Flag in pip

If you're seeing error: externally-managed-environment when using pip on a moder...

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

Git Merge Conflict Checklist Before Merging

You're about to merge a branch, but you've been burned by merge conflicts before. This ch...

How to Fix npm Run Build Failed Error

If you see "npm run build" fail with a generic error message, you're not alone. The i...

How to Fix npm ERR! enoent ENOENT: package.json Missing

You run npm install and get npm ERR! enoent ENOENT: no such file or directory,...