Micro-apps · local-first
These releases go beyond one-shot calculators: they support multi-step workflows, browser-local persistence, explicit recovery, portable JSON and deterministic version migration. No account or cloud sync is required.
Track hobby items, wishlist entries, categories, storage locations, notes and favorites in a browser-local collection with search, filters, JSON portability and recovery.
App 1.0.0 · local state schema 2 · no account
Open app →Walk through a fictional pickup experience from selection to collection using synthetic menu data and local-only state; it is an interface prototype, not a live café or ordering service.
App 1.0.0 · local state schema 2 · no account
Open prototype →App state is stored locally in the browser. Export creates a JSON file on your device; import reads a file you explicitly choose. ICU does not create an account, remote profile, order record or provider connection for these apps.
Interactive knowledge companion
Explore 16 source-grounded demonstrations of reflection, transmission, illumination, display limits and visual perception, with reproducible local settings and explicit screen-approximation boundaries.
Use the existing formula-first tools when you need a focused calculation rather than a stateful workflow.
