Checklists for software errors, setup, and tool workflows.

Git index.lock File Exists Even After Deleting: Fixes

You delete the .git/index.lock file, but Git still says it exists. This can happen d...

Docker Container Exits Immediately: No Error, Common Fixes

You run docker run and the container starts, then exits within a second. No error me...

Fix Chrome Startup Crash Without Losing Bookmarks

If Chrome crashes immediately upon launch, you risk losing bookmarks and other local data if you ...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

You run git clone https://example.com/repo.git and get:

fatal: unable to acc...

Fix ERR_NAME_NOT_RESOLVED After Chrome Update

If Chrome started showing ERR_NAME_NOT_RESOLVED on every website right after an upda...

Fix Chrome Black Screen on Mac: Hardware Acceleration Issue

You open Chrome on your Mac, and the screen goes black—or parts of the page are garbled. This oft...