Event calendar: calendar vs similar

2 options side by side. Our @design-infra pieces render live under the design system you choose; upstream pieces show their live demo where the host allows embedding, otherwise a screenshot with a link to the real thing. Pick or pass, then copy the feedback for your agent.

• AEvent calendar: calendaroriginuilive (upstream)
  drag — mediumdrop-inMinimalTrustworthy

  js · medium cost

  Event calendar (month/week/day/agenda, drag-and-drop, event dialog) — a whole feature for free. Heavy: dnd-kit, date-fns, @remixicon/react, ~12 primitives. Event colours are a fixed palette (sky/amber/violet/rose/emerald/orange).

  $npx shadcn@latest add https://coss.com/origin/r/comp-542.json

  Gallery pageOpen live demo

  Pick PassAdd to shortlist
• BGanttkibo-uilive (upstream)
  drag — subtledrop-inTrustworthyTechnical

  js · medium cost · ignores reduced motion

  Full Gantt chart (draggable features, sidebar groups, markers). Fully token-based. Deps: dnd-kit, jotai, date-fns, lodash.throttle, @uidotdev/usehooks.

  $npx shadcn@latest add @kibo-ui/gantt

  Gallery pageOpen live demo

  Pick PassAdd to shortlist

From design-infra compare — Event calendar: calendar vs similar:
(no picks yet)

Compare: https://www.owencoonahan.xyz/design-infra/compare?ids=originui/comp-542,kibo-ui/gantt&label=Event+calendar%3A+calendar+vs+similar