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

Fix 'npm install' Permission Denied When Using Yarn

You run yarn install in a project and later try npm install only to hit...

Git Merge Conflict: How to See the Diff Between Versions

When you run git merge and hit a conflict, Git pauses and marks the conflicting file...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

Fix 'Python Virtual Environment Activate Command Not Found'

When you try to activate a Python virtual environment with source venv/bin/activate ...

Node.js Garbage Collection Tuning to Avoid Heap Out of Memory

If your Node.js process crashes with a FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed -...