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Stout is the commercial enterprise control plane for Lager, the open-source hardware test automation runtime. Lager answers the question “how does hardware automation work?” — how to drive a power supply, stream UART, script a test. Stout answers the question “how do organizations operate that infrastructure at scale?” — who can run what, on which box, when, and with what evidence.

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When you need Stout

You already have Lager running if you can lager python test.py against a box from your laptop. You need Stout once you have:
  • More than a handful of boxes, distributed across benches, rooms, or sites, and no good way to see which are online.
  • Multiple teams or engineers sharing the same hardware, where “who’s using the scope right now?” is a real question.
  • Compliance requirements that demand an audit trail of who ran what test, against which firmware, at what time.
  • CI/CD ambitions — you want a pull request to automatically run on real hardware before it merges.
  • Customers or auditors who want to see a dashboard of fleet health, not a Slack channel of box IPs.

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What Stout adds

Fleet visibility

Every registered Lager box reports heartbeats, capabilities, and connected devices. See your whole fleet at a glance.

Access control

Organizations, teams, three-tier roles, per-box assignments, SSO via OIDC or SAML.

Interactive & automated testing

Drive a box’s instruments by hand in Workbench, run structured pass/fail suites in Factory, and wire in GitHub so a pull request is checked on real hardware before it merges.

Audit and governance

Every user action is logged with actor, resource, and timestamp. Maintenance windows and resource locks prevent collisions.

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What Stout is not

Stout never forks Lager, moves core Lager capabilities behind a paywall, or ships patched Lager versions. Anything that belongs in the runtime — a new instrument driver, a new net type, a new CLI command — belongs in Lager. Stout’s job is organizational, not technical. If you want to keep using Lager on its own, you always can. Stout is an addition, not a replacement.

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Next steps

Quickstart

Go from an empty account to driving real hardware from your browser in about ten minutes.