Engineering essays by Jason Worden.https://jasonworden.com/https://jasonworden.com/posts/01-not-an-ipad-app/https://jasonworden.com/posts/01-not-an-ipad-app/Supervision looks like an iPad app from the front. Underneath, it is a Pi-hosted control system built around live reliability.Wed, 10 Jun 2026 17:00:00 GMThttps://jasonworden.com/posts/02-offline-on-purpose/https://jasonworden.com/posts/02-offline-on-purpose/Supervision runs on a dedicated local network by design. That choice simplifies the control path and changes how telemetry has to work.Wed, 10 Jun 2026 16:00:00 GMThttps://jasonworden.com/posts/03-44hz-engine/https://jasonworden.com/posts/03-44hz-engine/The Supervision engine runs at about 44 Hz inside a worker thread, with a hot path designed to stay simple, isolated, and allocation-free.Wed, 10 Jun 2026 15:00:00 GMThttps://jasonworden.com/posts/04-never-go-dark/https://jasonworden.com/posts/04-never-go-dark/Supervision persists the live performance state on every change, so a restart comes back to a coherent show state instead of a blank rig.Wed, 10 Jun 2026 14:00:00 GMThttps://jasonworden.com/posts/05-one-protocol-two-different-clients/https://jasonworden.com/posts/05-one-protocol-two-different-clients/Supervision uses one typed protocol across the iPad and iPhone, with the Pi as authority and each client doing a different job.Wed, 10 Jun 2026 13:00:00 GMThttps://jasonworden.com/posts/06-mermaid-lint/https://jasonworden.com/posts/06-mermaid-lint/mermaid-lint runs the official Mermaid parser over every diagram in your Markdown — as a Vitest/Jest suite, a CLI, or a library — so broken diagrams fail CI instead of shipping as error boxes.Tue, 16 Jun 2026 12:00:00 GMThttps://jasonworden.com/posts/its-not-an-ipad-app-series/https://jasonworden.com/posts/its-not-an-ipad-app-series/A five-part engineering series on Supervision: a Raspberry Pi show engine, an iPad primary controller, an intentionally scoped iPhone companion, CRMX lighting, and Radiator-backed laser control.Wed, 10 Jun 2026 18:00:00 GMT