`git maintenance` does set a crontab. Per the doc, it sets up the following: 0 1-23 * * * "/<path>/git" --exec-path="/<path>" for-each-repo --config=maintena

`git maintenance` does set a crontab. Per the doc, it sets up the following: 0 1-23 * * * "/<path>/git" --exec-path="/<path>" for-each-repo --config=maintenance.repo maintenance run --schedule=hourly 0 0 * * 1-6 "/<path>/git" --exec-path="/<path>" for-each-repo --config=maintenance.repo maintenance run --schedule=daily 0 0 * * 0 "/<path>/git" --exec-path="/<path>" for-each-repo --config=maintenance.repo maintenance run --schedule=weekly `git for-each-repo` was a useful addition in 2.30, by the way.