Checklists for software errors, setup, and tool workflows.

How to Fix Node Version Mismatch in a Project

You cloned a project, ran npm install, and got errors about engine incompatibility. ...

Docker Prune Not Freeing Enough Space: Practical Fixes

You run docker system prune -a expecting a big space recovery, but the freed space i...

Docker Compose Environment Variable Not Updating? Fix It

You update a variable in your docker-compose.yml or .env file, run

Cloudflare 522 Error After Server Migration: Fixes That Work

If you've just migrated your website to a new server and now see a Cloudflare 522 error (conn...

Fix 'package.json Not Found' After Cloning a Repository

Symptom

You clone a repository from GitHub (or another remote), change into the directory...

Fix Nginx 502 Bad Gateway with Docker Socket

You have an Nginx container proxying requests to another container via the Docker socket, and you...