Designing system architectures often involves slow, cumbersome tools that interrupt the flow of brainstorming. A lightweight, intuitive diagramming tool could fill this gap.
Build a web-based app that lets users sketch systems quickly, with drag-and-drop components and real-time collaboration.
Monetize through a freemium model, with paid tiers for advanced features like exporting or integrations.
The MVP could be a simple sketching tool with basic shapes and connectors.
The main risk is competing with established diagramming platforms, so focus on speed and simplicity.