About this Service
Multi-sided platforms grow three interfaces at once: the buyer app, the seller console and the admin panel. Each gets built by a different person under a different deadline, so the same button ends up in four variants, the same table behaves differently in each, and every new feature restarts the argument about spacing.
Engineers rebuild components that already exist. QA files bugs that are really inconsistencies. Nobody owns it, because it's nobody's ticket.
You get one source of truth in Figma and in code, so a new screen takes hours instead of days and looks like it belongs. Three teams ship in parallel without drifting apart, and a new designer is productive in their first week instead of their first month.
What we build:
— Audit of what exists: every component, every variant, every duplicate
— Tokens: color, typography, spacing, radius, elevation — light and dark
— Core components with all states: empty, loading, error, disabled, overflow
— Patterns specific to multi-sided products: listing cards, seller consoles,
admin tables, filters, bulk actions, permission states
— Responsive rules from mobile to wide desktop
— Documentation: when to use what, and when not to
— Handoff to engineering, with naming that matches the codebase
For FlyStraightLine we rebuilt eight years of patched-together assets into one system around a single promise. Platforms we've built this way have processed $720M+ in production payments across marketplaces with millions of listings, trading exchanges and B2B commerce.
You get: Figma library with variables and variants, token set ready for code, component documentation, contribution rules so the system survives after we leave, and a 90-minute walkthrough with your design and engineering team.
How we work: diagnostic → project → retainer. Most teams keep us on a retainer afterwards, because a design system without an owner drifts back within a year.
U1CORE — design and engineering in one team, so the components we hand over are the components that ship.
