On this page
A practical cut of Hospitality: Realtime Systems Guide for engineering and product leads — decisions first, framework essays last.
Who this is for
Teams that write trade-offs down before coding burn fewer sprints when a stakeholder changes their mind mid-build. We keep ADRs short on purpose.
Decisions that still look smart in 18 months
Instrument the happy path and the ugly path. Silent failures are what turn a launch into a weekend incident.
Build checklist we actually use
Instrument the happy path and the ugly path. Silent failures are what turn a launch into a weekend incident.
Failure modes we keep seeing
Ship a thin vertical slice, measure, then widen. Big-bang rewrites rarely survive the first month of real traffic.
How we measure rollout
Ignore the buzzwords. For Hospitality: Realtime Systems Guide, the hard constraint is usually data ownership or ops capacity — not how many features fit on a roadmap slide.
We update this when delivery patterns change on live client work.