knowledge / projects
U&I
A theme-adaptive React component system and an interaction-research catalogue for marketing sites.
U&I is a pnpm monorepo with a React and TypeScript marketing-component library and a catalogue site that shows each component, theme and composition with its evidence. It is a research prototype of the interaction design and the quality process, not a published library. Most of the build was an autonomous agent run directed by Martin, with the mission, worklog and quality ledger kept in the repository.
| At a glance | |
|---|---|
| Role | Designer-developer · agent-assisted |
| Period | 2026 |
| Status | Prototype |
| Stack | React, TypeScript, Playwright, Cloudflare D1 |
| Live | u-and-i-catalog ↗ |
What was built
- 26 marketing component files, each with unit tests, across four packages
- 39 end-to-end spec files plus deployed-environment and accessibility suites
- Visual identity driven by DESIGN.md tokens, several light and dark theme worlds, and a reduced-motion mode
Notes
Research prototype. Built with an autonomous agent workflow over five days in July 2026.
Part of Projects.