CommitAI — Local AI-Powered Git Assistant Using Gemma 4

This is a submission for the Gemma 4 Challenge: Build with Gemma 4 What I Built As developers, we repeatedly write commit messages, maintain changelogs, and switch context during development. I wanted to build a lightweight developer tool that could automate this workflow completely offline without relying on cloud APIs or external AI services. So I built CommitAI — a local AI-powered Git assistant using Gemma 4 + Ollama. The workflow is simple: Read staged Git diff Send it to a local Gemma 4 mo