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

Passing Environment Variables to Docker Compose: A Practical Guide

When you run a multi-container application with Docker Compose, you often need to configure servi...

Fix Chrome Black Screen on Nvidia GPU with Hardware Acceleration

If you're seeing a black screen in Chrome—especially when watching videos or scrolling—and yo...

How to Fix Docker Pull Unauthorized Access Denied

When you run docker pull and get an "unauthorized: access denied" error, Doc...

How to Enable Network Discovery for Shared Folder Access

When you can't see other computers in File Explorer's Network section, or you get an erro...

How to Fix ERR_NAME_NOT_RESOLVED via Router Settings

If you see ERR_NAME_NOT_RESOLVED in Chrome, your browser can't translate the...

Fix Nginx Upstream Connection Refused in Proxy Pass