Add MCP-NixOS server to Developer Tools section

README.md

@@ -305,6 +305,7 @@ Tools and integrations that enhance the development workflow and environment man
 - [mrexodia/user-feedback-mcp](https://github.com/mrexodia/user-feedback-mcp) 🐍 🏠 - Simple MCP Server to enable a human-in-the-loop workflow in tools like Cline and Cursor.
 - [OctoMind-dev/octomind-mcp](https://github.com/OctoMind-dev/octomind-mcp) - 📇 ☁️ lets your preferred AI agent create & run fully managed [Octomind](https://www.octomind.dev/) end-to-end tests from your codebase or other data sources like Jira, Slack or TestRail.
 - [pskill9/website-downloader](https://github.com/pskill9/website-downloader) 🗄️ 🚀 - This MCP server provides a tool to download entire websites using wget. It preserves the website structure and converts links to work locally.
+- [utensils/mcp-nixos](https://github.com/utensils/mcp-nixos) 🐍 🏠 - MCP server providing accurate information about NixOS packages, system options, Home Manager configurations, and nix-darwin macOS settings to prevent AI hallucinations.
 - [QuantGeekDev/docker-mcp](https://github.com/QuantGeekDev/docker-mcp) 🏎️ 🏠 - Docker container management and operations through MCP
 - [r-huijts/xcode-mcp-server](https://github.com/r-huijts/xcode-mcp-server) 📇 🏠 🍎 - Xcode integration for project management, file operations, and build automation
 - [ReAPI-com/mcp-openapi](https://github.com/ReAPI-com/mcp-openapi) 📇 🏠 - MCP server that lets LLMs know everything about your OpenAPI specifications to discover, explain and generate code/mock data