Edit your crontab from a phone, in the airport

Boarding announcement. You realize the daily report job is set for 7am UTC, which is 3am where you're flying: but the recipient is in Tokyo, where it'll arrive at noon, which is wrong.

You open the terminal URL on your phone. You PATCH the cron entry's schedule field through curl. Two-line change. The new schedule fires tonight in the right timezone. You hit send and walk to the gate.

There was no SSH session, no jump box, no Cisco AnyConnect prompt that would've timed out three minutes into the change. The crontab is a URL, the auth is the URL, the edit is one HTTP verb.