Checklists for software errors, setup, and tool workflows.

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Update Git SSL Certificates to Fix 'unable to get local issuer'

If you see fatal: unable to access 'https://...': SSL certificate problem: unable t...

Fix DNS Probe Finished NXDOMAIN on Router: Step-by-Step
You're browsing and suddenly Chrome shows 'DNS_PROBE_FINISHED_NXDOMAIN'. This means y...

Fix Git Lock File Not Deleted After Crash
If Git reports a lock file error after a crash, it usually means a previous Git operation was int...

Docker Container Exits Immediately: Diagnosing Out of Memory
You start a Docker container and it exits within seconds. The logs show nothing obvious, or they ...

Fix 'Git Remote Origin Already Exists' When Updating Remote URL
You run a command like git remote add origin https://newurl.com/repo.git and get

Fix Git Authentication Failed in VS Code on Linux
You're working in VS Code on Linux, try to push or pull, and get a popup: "Git authentica...

Checklists for software errors, setup, and tool workflows.

Latest checklists

Update Git SSL Certificates to Fix 'unable to get local issuer'

Fix DNS Probe Finished NXDOMAIN on Router: Step-by-Step

Fix Git Lock File Not Deleted After Crash

Docker Container Exits Immediately: Diagnosing Out of Memory

Fix 'Git Remote Origin Already Exists' When Updating Remote URL

Fix Git Authentication Failed in VS Code on Linux

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