Build Emma is a desktop coding workspace with EMMA, a resident AI agent that runs on your own models via Ollama. She reads the project, makes the change, runs the tests against it, then stops. You review the diff change by change, and nothing lands until you approve it. It's a real editor with a terminal and language support, and two laptops on the same wifi can code together with no server in the middle. No account, no telemetry, works offline.