public IAM sandbox / live sandbox
Northbridge Horizon
A fictional healthcare identity sandbox for seeing how an access request is proposed, checked, and reviewed.Open public demo (opens in a new tab)Why I made it.
- Context
- IAM portfolios often describe controls without giving a reviewer anything real to inspect.
How it works.
- TypeScript
- Postgres
- JWT
- JWKS
IN THE MARGINS / METHOD NOTES
03 VIEWSTurn the architecture into a fictional but functioning environment with honest theatrical boundaries.
A technical reviewer can inspect the access plan, policy evidence, human review, and boundary before execution.
A candidate plan remains distinct from authority; the illustrated request stops at accountable human review.
A reading guide to the method. No live operation runs here.
See the work.
The public Command Center shows an eight-stage designed path; Enterprise exposes modeled counts, while Truth Lens classifies 17 claims and reports zero live-verified claims.

Start with a fictional hospital case: test an access change, find a smaller repair, and check whether needed care access recovers.
Recorded v22 · fictional teaching lab · no real access changesSource & recording details
- Source page
- Northbridge Horizon v22 / command center
- Displayed image
- Full record · 20 OCT 2026
- Date label source
- Supplied metadata
- Recorded edition
- v22 source rendered locally at 2× density; fictional teaching lab
- Source revision
- 7cb2ac26e4667e173e5446cd3cfa8f3872d2c451
What’s available—and what isn’t.
Synthetic identities and deterministic agent simulations. Persona selection is not authentication; simulated approval is not proven two-person control. No production writer is connected.
- Last documented source review
- Last documented destination check