Local Dev Environment Rescue: Make Onboarding Work on Day One

A new contributor tries to run the project and hits a wall: missing versions, unclear env vars, broken sample data, failing migrations, and services that only work on one laptop. Participants diagnose and repair the onboarding path.

The deliverable is a repeatable local setup that explains prerequisites, verifies dependencies, seeds safe data, and reports failures clearly. The session is for teams tired of losing new contributors before they can make their first useful change.