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About
Broad Daylight is Exowatt's open-source initiative. It is the software we built to make AI and code work in the physical world, which we are opening up one project at a time, with a paper on this site for each project that explains how it works.
Our code runs close to real equipment: the energy management system at each of our plants, simulations of real places, robots and drones, and agents that operate real infrastructure. The tools for that work did not exist in the shape we needed, so we built them. Orb and OrbLang turn a phone scan of a real site into a simulator scene. Copper gives agents a real browser, driven by Jev, a small action model from TypeSafe that we also put in a quadcopter's control loop. Roadrunner, phi, Forca and Feads are the infrastructure that lets a small team and its agents build that software and ship it every day.
Three of the projects are forks of other people's open-source work: phi of pi, Forca of Orca and Feads of beads. They keep their upstream MIT licenses and credit the people who wrote them. Copper's code is public today. The other five are still private and will open one at a time; each card below says which is which.
Each paper covers what we built, the numbers from using it, and what went wrong. The mark is a daisy, whose name comes from the Old English for "day's eye": the flower that opens with the day.
Projects
6 projects- SimulationNot public yet
Orb + OrbLang
A typed language and toolchain that turn a phone scan of a real site into a simulator scene and a film. One set of files feeds MuJoCo and Isaac Sim.
- BrowserPublic
Copper
A WebKit browser that agents drive through MCP. It hands whole goals to Jev, the TypeSafe action model that also steers our quadcopter back on course.
- CI/CDNot public yet
Roadrunner
Our self-hosted Woodpecker and Dagger deploy lane, so a GitHub Actions outage no longer stops a merge from shipping. 199 repos moved to it in eight days.
- Coding agentNot public yet
phi
Our fork of the pi coding agent, run by the whole team, with one hub on every machine so a phone or another session can drive any agent.
- WorkspaceNot public yet
Forca
Our fork of Orca, the workspace where we run many coding agents side by side, shipped with phi on every push and paired with the stock phone app.
- CoordinationNot public yet
Feads
Our fork of beads: one hosted board where everyone's agents claim work, declare the files they touch and @mention each other so they don't collide.
- 15
Tim Child, Felipe Arce, Collin Rijock
Broad Daylight is Exowatt's open-source initiative: six tools a small team and its agents use to take code from a phone scan of a site, through simulation, to real hardware. This paper covers what each one does, the numbers we measured, and which parts are public today.
- 06
Felipe Arce, Tim Child, Collin Rijock
After a three-hour GitHub Actions outage, we built Roadrunner, a self-hosted Woodpecker and Dagger deploy lane. Eight days later it was the default deploy path for 199 repos, with GitHub Actions kept as the fallback.
- 07
Felipe Arce, Collin Rijock, Tim Child
How we built Copper Cloud, one Rust server that syncs browsers, pairs devices and relays agent calls to a phone, and how handing whole goals to a small action model brought a browser decision down to about 0.13 seconds.
- 08
Felipe Arce, Collin Rijock, Tim Child
Collin Rijock built OrbLang, a typed language that compiles physical sites into simulator scenes. Felipe Arce built the infrastructure around it: capture from phone scans, remote GPU rendering, a content-addressed project catalog, and the tools we present films and live simulations with.
- 12
Felipe Arce, Tim Child, Collin Rijock
phi is our fork of the open-source pi coding agent. Three infrastructure decisions let a whole team run it: ship one binary promoted by tag, supervise subagents as real processes, and put one hub on every machine so a phone or another session can drive any session.
- 13
Felipe Arce, Tim Child, Collin Rijock
Forca is Exowatt's fork of Orca, the open-source agent workspace. We built the release feed that ships it and phi on every push, a contract that keeps us pairable with the stock phone app, and the method that merged 9,043 upstream commits in one afternoon.
- 14
Felipe Arce, Collin Rijock, Tim Child
We turned beads, an open-source issue tracker for coding agents, into Feads: one hosted board where nine people's agents claim work, declare the files they touch and @mention each other. Since July it has tracked 19,356 items and recorded 4,732 overlap decisions.
