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Jujutsu creator Martin von Zweigbergk joins East River Source Control as CTO

The creator of the Jujutsu open-source version control system will lead engineering at ERSC while remaining a core maintainer of the project.

The short version

  • East River Source Control appointed Jujutsu creator Martin von Zweigbergk as its chief technology officer.
  • von Zweigbergk will oversee engineering for the company's next-generation version control tools while continuing to maintain the Jujutsu open-source project.
  • The startup plans to launch a private beta for its ERSC Storage product later in the month.

Key facts

  • East River Source Control named Martin von Zweigbergk as its new chief technology officer.[Hacker News]
  • von Zweigbergk created the Jujutsu version control system as a side project in 2019 before continuing work on it at Google.[Hacker News]
  • von Zweigbergk will remain a core maintainer of the open-source Jujutsu project, which is licensed under Apache 2.0.[Hacker News]
  • East River Source Control was launched in 2025 with backing from Amplify Partners.[Hacker News]
  • The company announced that ERSC Storage is scheduled to enter a private beta testing phase.[Hacker News]

Sources