Checklists for software errors, setup, and tool workflows.

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Fix Nginx 'upstream connection refused' When Talking to PHP-FPM

You're seeing upstream connection refused in your Nginx error log, and your site...

Fix npm Run Build Out of Memory Errors

If your npm run build fails with an out-of-memory error, you're not alone. This ...

Fixing Node Sass Build Failures on Linux

If you're running npm install on a Linux machine and get a build failure for

Fix Nginx Configuration Test Failure for Upstream Directive

When you run nginx -t and get an error involving the upstream directive...

Fix 'No Space Left on Device' with Docker Devicemapper

If you're running Docker with the devicemapper storage driver and see no s...

Fix Git SSL Certificate 'Unable to Get Local Issuer' After Update
After updating Git or your operating system, you may encounter the error fatal: unable to g...