reui Gantt + Event Calendar Patterns

reui (github.com/keenthemes/reui, MIT license) is a shadcn-compatible component registry. Its Gantt and Event Calendar primitives are headless-first, Base-UI-or-Radix-backed, Tailwind-styled scheduling components, distributed via the shadcn CLI ("you own the code" — components are copied into your own repo, not installed as an opaque npm dependency).

MANDATORY: Before writing any Gantt code, read references/gantt-api.md in this skill directory. Before writing any Event Calendar code, read references/event-calendar-api.md. Do NOT guess prop names, hook signatures, or data-shape fields — reui's API is specific and will silently break if guessed. Every claim in both reference docs is sourced from docs/recon/reui-gantt-calendar.md's evidence-audited citations (8/8 verified, 2026-07-23) — if reui's upstream API has since changed, re-run /recon against the current docs rather than trusting this skill blind.

When to use which component