Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're seeing a build error like Module build failed: Error: Node Sass does not yet ...

Fix Nginx Upstream Connection Refused Timeout Error
When Nginx returns 502 Bad Gateway or logs upstream connection refused timeout...

Fix Edge Sync Not Syncing Tabs Across Devices
You open a tab on your desktop, but it doesn't show up on your phone or laptop. This is a com...

Fix Python Permission Denied When Running pip install -r requirements.txt
You run pip install -r requirements.txt and get a PermissionError or

Fix Git Stash Error: index.lock File Exists
You run git stash and see: fatal: Unable to create 'path/.git/index.lock&#...

Docker Nginx 502 Bad Gateway: Memory Limit Fix
You're running Nginx in Docker as a reverse proxy, and suddenly you see 502 Bad Gateway error...