Demos

Working demos. Inspectable architecture.

Each demo turns an architectural claim into behavior that can be watched, run and inspected.

Experiments

For executable or interactive demonstrations that test architectural ideas, behaviors or assumptions.

The Shot

A crowd game for an arena, written while we build it — thousands of phones, two teams, roles that change between turns. Not playable yet.

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COORDINATION SERIESVideo

The Stage Manager

One character standing on several machines, and two characters speaking — the only two mechanisms there are.

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EXECUTABLE COMPARISONVideo

The Same Invoice, Twice

The same business outcome implemented around two different architectural centers.

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SHARED SYSTEM DEMO

The Village Hall

A bingo night running on the phones in the room — no server, no database, one journal per handset.

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DEPLOYMENT DEMOVideo

One Play, Many Stages

One domain held fixed while its deployment and its clients change — and the diff that proves it, which you can run.

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DEPLOYMENT DEMOVideo

Three Machines, One Paper

Whether a datacenter is a structural requirement of running production software, or a requirement of the stack it is conventionally built on.

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DEFERRED WORK DEMO

The Line You Draw

Why systems grow a queue, a worker and a retry table — and what happens when the deferral is a line the developer draws instead.

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CRASH DEMO

Unacknowledged

A process killed between deciding to send a message and sending it — and what its own record says afterwards about a message whose fate nobody knows.

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OUTPUT DEMO

Nobody Asked the Domain

Who decides where a computed value ends up — and whether the code that computed it is ever in a position to be asked.

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In Motion

Active

The robot is not the product. The distributed system is.

For demonstrations involving movement, robots, devices, physical environments or systems operating in more dynamic, embodied scenarios.

Distributed Systems in Motion: the research frontier

CONTINUITY DEMOVideo

The Robot Forgets. The Puppet Doesn't.

Two robots in a simulator, each keeping a journal of its own — and what is still there once the process that drove one of them is gone.

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DISCOVERY DEMO

The Map Was Given. The Obstacles Were Not.

Robots in a warehouse that has physics — and where their knowledge of what blocks them comes from, given that nobody wrote it down for them.

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