Show HN: Floyd – Open-source booking kernel for AI agents

Hi HN, solo builder here.

Floyd is an open-source booking kernel for AI agents: TTL holds -> confirm, explicit 409 conflicts, and idempotency keys to prevent double-bookings under concurrency.

Docs: https://docs.floyd.run

Repo (Apache 2.0): https://github.com/floyd-run/engine

Early dev preview, would love feedback on API semantics + edge cases.