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Essential cursor rules for building Python-based API servers with clean architecture, focusing on FastAPI, SQLAlchemy, and structured perfection. Includes comprehensive testing, security practices, and repository organization.

Build a Next.js baby tracking app (diapers, feedings, naps, pumping) with TypeScript, Prisma/SQLite, TailwindCSS, and React Hooks. Designed for future React Native conversion with mobile-first architecture patterns.

Expert guidance for working with the amp-templates monorepo - an Effect-TS powered CLI tool for scaffolding Amp applications with Next.js, Vite, and backend templates

Expert guidance for working with YSBA Live baseball standings application. Helps with development, debugging, API endpoints, scraping logic, and multi-division architecture.

Development agent for Amazon automated purchasing tool with debt prevention

Framework adapters for Trigger.dev SDK integration in a Turborepo monorepo using Bun

Ruby on Rails app for managing agricultural land leasing between landowners and farmers, with financial year snapshots and payment tracking.

Expert guidance for managing NixOS/nix-darwin configurations with flakes, home-manager, and multi-architecture support

Development guidelines and commands for the Our World in Data Grapher platform, covering code style, testing, database access, and project structure.

Expert guidance for Rush monorepo development, build management, and best practices

Senior developer for building and maintaining Obsidian EPUB reader plugins with epubjs integration

AI coding assistant for Open-LLM-VTuber, a low-latency voice-based LLM interaction tool with Live2D. Enforces Python 3.10+ best practices, FastAPI patterns, async architecture, and project-specific conventions.

Guide for developing ESPHome components with YAML config and C++ code generation. Covers configuration schemas, platform support, coding standards, and testing workflows.

Expert guide for developing autonomous agents with IntentKit framework. Handles architecture, skills development, testing, and follows project conventions.

Build realistic browser-based terminal emulators with React. Supports draggable/resizable windows, command history, theming, and simulated command execution.

Production-ready Aider config with Claude Sonnet 4.5 via OpenRouter, auto-testing, linting, file watching, and Git attribution

Development guidelines for ha-legacy-gsm-sms Home Assistant addon variants with strict file handling rules

Aider configuration for autonomous computational materials science research agent with pre-loaded context for LAMMPS simulations, Quantum Espresso calculations, HPC cluster management, literature search, materials databases, and data analysis workflows.

Build a modern Next.js 15 website with TypeScript, Tailwind CSS 4, Shadcn UI, Sanity CMS, and comprehensive linting. Follows French conventions with fluid typography and mobile-first responsive design.

Comprehensive .aider.conf.yml template from Chapman University's LLM coding course covering all Aider configuration options including model selection, caching, git integration, and voice settings