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Dev.to
6/25/2026
How I Built a Premium Developer Tools Website Using Only a Local LLM (Gemma 4:12B + Ollama + VS Code)

How I Built a Premium Developer Tools Website Using Only a Local LLM (Gemma 4:12B + Ollama + VS Code)

Short summary

Developer built SafeDevTools, a browser-based utilities collection, using Gemma 4:12B locally via Ollama and VS Code. The breakthrough was creating a detailed VS Code Copilot Skill encoding project standards (architecture, design, accessibility, SEO), ensuring consistency without constant manual corrections. Key lesson: smaller models become powerful when given clear architecture and constraints rather than larger prompts.

  • Built production-ready developer tools website using only local LLM (Gemma 4:12B) with no cloud APIs or external dependencies
  • Created reusable VS Code Copilot Skill that encoded project standards, dramatically improving model consistency and code quality
  • Smaller models excel when given engineering blueprints and clear constraints rather than ad-hoc prompts

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