Checklists for software errors, setup, and tool workflows.

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

You run git clone https://example.com/repo.git and get:

fatal: unable to acc...

How to Fix Git Detached HEAD State and Undo Changes

You run git status and see something like "HEAD detached at abc123". This ha...

Fix VSCode Breakpoints Not Hitting in TypeScript

You set a breakpoint in a TypeScript file, run the debugger, and execution never pauses. This is ...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

You're running Nginx as a reverse proxy inside Docker on Ubuntu, and suddenly you see

Fix Docker Network Missing After Reboot

After a system reboot, you may find that a Docker network you created is no longer listed when yo...

Docker Desktop Engine Stopped on Mac M1: Fixes That Work

On Apple Silicon Macs (M1, M2, M3), Docker Desktop sometimes shows the error “Docker Desktop engi...