RudderStack open-sources DevBox, the agent harness behind about 35% of its merged PRs
Shown on HN Nov 3, DevBox runs one sandbox per task with no real secrets inside, on Kubernetes or your own machine, plus a CLI that spins up dependent services for end-to-end checks and hooks into Slack, Linear and GitHub. RudderStack says it has merged over 1,900 PRs from it since April, mostly small to mid features, while bigger projects still go to Claude or Codex (Show HN).