Projects taking shape.

Active projects live here before they grow into independent products.

Duckstack is public.

Duckstack

A personal evolution and business discovery system for generalists.

duckstack.tonkotsubun.dev

Duckstack dashboard showing an active business bet and its next action.

Investment Portfolio

A personal investment portfolio.

money.tonkotsubun.dev

Investment Portfolio dashboard showing its empty overview and supported asset classes.