Practice system design interviews with an AI interviewer that listens to you explain, watches you draw on a whiteboard, and asks follow-up questions. Voice-first, real-time feedback for engineers preparing for FAANG interviews.
Vortex is a free, open-source Chrome extension that transforms your browser into an infinite spatial canvas. Websites become draggable, resizable nodes. Links create visual connections. Your research path is always visible.
Perfect for: Researchers, students, designers, writers, and anyone who thinks visually and is tired of tab overload.
Instead of 100+ messy tabs, it’s an infinite spatial canvas. Every link you click spawns a new node, mapping your journey visually.
Definvoice is a complete open source billing & invoicing platform with payments, crypto, and payroll coming soon. Create professional invoices, manage customers, track payments. Self-host anywhere. Free forever. Built for freelancers & businesses tired of expensive SaaS.
Reclaim Protocol SDK (Alpha)