Checklists for software errors, setup, and tool workflows.

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Fix Chrome Certificate Error: Invalid Authority with Proxy Settings

You open Chrome and see NET::ERR_CERT_AUTHORITY_INVALID on every site, even trus...

Fix npm run build Failure from Missing Env Variables

You run npm run build and get an error like Error: Missing required environmen...

Fix Windows Update Error 0x80070002: Missing File
If you see error 0x80070002 when running Windows Update, it usually means the system cannot find ...

Setup Cloudflare Origin Certificate for Nginx
If you use Cloudflare as a reverse proxy, enabling HTTPS between Cloudflare and your Nginx server...

Fix Windows 11 Update Stuck at 0% with Service Not Running
You click Check for updates, see 0% for ages, and maybe an error like 'Windows Update service...

Fix Nginx Configuration Test Failure for Upstream Directive
When you run nginx -t and get an error involving the upstream directive...

Checklists for software errors, setup, and tool workflows.

Latest checklists

Fix Chrome Certificate Error: Invalid Authority with Proxy Settings

Fix npm run build Failure from Missing Env Variables

Fix Windows Update Error 0x80070002: Missing File

Setup Cloudflare Origin Certificate for Nginx

Fix Windows 11 Update Stuck at 0% with Service Not Running

Fix Nginx Configuration Test Failure for Upstream Directive

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