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Dev.to
5/8/2026
I Built a Local-First VSCode Code Mentor with Gemma 4 — Your Code Never Leaves Your Machine

I Built a Local-First VSCode Code Mentor with Gemma 4 — Your Code Never Leaves Your Machine

Short summary

Developer built Gemma Local Code Mentor, a privacy-first VSCode extension powered by Gemma 4 that keeps your code on your machine—no cloud uploads. Features dual-model routing (Gemma 4 E4B for lightweight tasks, 31B Dense for complex work), Ollama local runtime, Docker containerization, and full open-source code. Targets freelancers and companies handling sensitive code.

  • Local-first VSCode extension using Gemma 4 for code explanation, refactoring, test generation, and architecture analysis
  • Privacy-preserving by default: code stays on your machine with no cloud uploads, telemetry, or external API calls
  • Dual-model routing optimizes speed vs. depth; includes Ollama integration, Docker setup, and .gemmaignore support

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