You can roll your own barebones DAG engine in any language that has promises/futures and the ability to wait for multiple promises to resolve (like JS's Promise

You can roll your own barebones DAG engine in any language that has promises/futures and the ability to wait for multiple promises to resolve (like JS's Promise.all()): For each task t in topological order: Promise.all(all in-edges to t).then(t) Want to run tasks on remote machines? Simply waves hands make a task that runs ssh.