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

Fix Nginx Upstream Connection Refused in Docker

You have Nginx running, either on the host or in a container, proxying to another Docker containe...

Fix npm install Permission Denied on Shared Hosting

Fix 'Permission Denied' in VS Code Terminal on Linux

You're working in VS Code on Linux, open the integrated terminal, and run a command—only to s...

Docker Compose Environment Variable Not Working: Fixes

You define a variable in a .env file or directly in docker-compose.yml, but your container sees n...

How to Set Node.js Max Heap Size Permanently

If your Node.js process crashes with memory errors like FATAL ERROR: CALL_AND_RETRY_LAST Al...