Reproducible Development Environments, One Command Away: Introducing CodingBooth

We containerized production years ago. We containerized CI not long after. And yet the place where engineers actually spend the bulk of their workday — the local development loop on a laptop — is still, for most teams, the least reproducible part of the stack.

This is the story of why that happens, why it's gotten worse rather than better in the last few years, and what I ended up building to fix it for my own work.