AutoCircuit Builder

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AutoCircuit Builder is an interactive browser-based automotive engineering and simulation suite featuring two specialized workbenches:⚡ Electrical Workbench: 28 components (batteries, switches, relays, diodes, circuit breakers, colored lights, voltmeter) with a live graph-reachability current solver.⚙️ Mechanical Workbench: 31 components (engine with real displacement & redline physics, clutch, transmission, differential, brakes, cooling, turbocharger) with power-limited top-speed simulation, live efficiency waterfall graphs, and fuel economy estimation.🌍 Community Hub: Fully integrated REST API & PostgreSQL database allowing users to publish builds, like, comment, and remix each other's configurations with 1-click loading.Key Technical Highlights:• Zero-dependency frontend: Pure HTML5/Canvas/CSS and vanilla JavaScript (ES modules). Zero build tools, zero Webpack/Vite complexity, and instant load times.• Turnkey backend: Lightweight Express.js API + PostgreSQL database on Render.• Turnkey monetization ready: Pro Mechanic ($9/mo or $49 lifetime) and Educator/Classroom ($199/yr) pricing tiers, watermark-free Ultra-HD exports, and Bill of Materials (BOM) CSV parts generator. Single-file Stripe configuration in js/proConfig.js.What's Included:- Complete private GitHub repository ownership & source code (Frontend + Backend).- PostgreSQL database schema and live community data (builds, comments, likes).- 59 custom SVG automotive component vector designs.- Comprehensive Buyer Handover Guide (BUYER_HANDOVER_GUIDE.md) and Asset Transfer Manifest.- 14 days of post-sale onboarding support.