143.dev open-sources the coding-agent infra they built for themselves

johnjwang's team shipped 143.dev, releasing the internal infrastructure they use to run coding agents — not a demo, but the actual stack they depend on. For indie makers tired of stitching together agent scaffolding from scratch, having a real-world, self-hosted foundation to fork is a meaningful shortcut. Open-sourcing internal tooling also signals confidence: it's battle-tested enough that they're comfortable with others poking at it.