slop.boutique

A lab for computation and intelligence as material and medium. Run by Manuel and Ramon.

011 · 22 October 2026 · developer-tools · handheld · education

Octavo Lab

Download ↓octavo-lab-0.1.0.html, 1.0 MB · sign in to download

An operating-system playground: worlds in QuickJS sandboxes on a virtual dual-screen handheld, with faults, timelines and a coding agent.

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The Octavo preset: the system script next to the virtual dual-screen handheld running a reader
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Download ↓octavo-lab-0.1.0.html, 1.0 MB · sign in to download

An operating-system playground. Programs are worlds in QuickJS sandboxes on a small virtual machine, a dual-screen handheld with buttons, a lid, a touch screen, a light sensor, wifi and a battery.

  • Write the system: stores, channels and apps in one script; boot it and watch it run.
  • Look inside: machine I/O, events, a timeline, the world list, a dependency graph, changes and authority.
  • Break it on purpose: inject crashes, hangs, floods and unplugs; close the lid mid-stroke; follow the restarts.
  • Scenarios: scripted runs such as "phone turns the page" that you can run or watch step by step.
  • Agent: a coding agent that can read, change and test the system with you.
Octavo Lab with code, the virtual machine and its devices: buttons, lid, touch, light, wifi, battery and faults
Octavo Lab with code, the virtual machine and its devices: buttons, lid, touch, light, wifi, battery and faults
Supervision tree: devices, drivers, services and apps as a graph with restart strategies
Supervision tree: devices, drivers, services and apps as a graph with restart strategies
Compositor: an app crashes and its last frame stays up with a restarting stamp
Compositor: an app crashes and its last frame stays up with a restarting stamp
Runaway: CPU budgets and memory caps stop a spinning world and a hoarder on the timeline
Runaway: CPU budgets and memory caps stop a spinning world and a hoarder on the timeline
Backpressure: one producer and four consumers behind channels with different overflow policies
Backpressure: one producer and four consumers behind channels with different overflow policies
The event log of a booted machine
The event log of a booted machine

Attachments

  • Source project (zip) octavo-lab-source.zip · 1.3 MB

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