How does it compare to https://github.com/penpot/penpot?

Thanks for this question. I'm humbled by the comparison. I have been following penpot for a while and I appreciate the work they've been doing.

The main difference lies in the rendering engine. Penpot relies on an SVG engine, which limits performance as project complexity grows.

Vecti is built on canvas and WebAssembly (the same architecture used by Figma). This gives us raw performance advantages, allowing you to handle complex, heavy design systems without the lag you might experience in SVG-based tools.