    /* the listening port on the real core, camelCase for real: a spare
       number, then 50300 — the client's own default, so the phone ends the
       walk on exactly the port an unset config would already have used */
    { do: `__click('.screen .row', 'Listening port')`, name: "you-port-prompt", wait: 900 },
    { do: `(function () { var i = document.querySelector('.halfsheet .prompt .field'); i.value = '50310'; i.dispatchEvent(new Event('input', { bubbles: true })); })()`, wait: 400 },
    { do: `__click('.halfsheet .prompt-acts .btn-fill', 'Save')`, name: "you-port", wait: 1200 },
    { do: `__click('.screen .row', 'Listening port')`, wait: 800 },
    { do: `(function () { var i = document.querySelector('.halfsheet .prompt .field'); i.value = '50300'; i.dispatchEvent(new Event('input', { bubbles: true })); })()`, wait: 400 },
    { do: `__click('.halfsheet .prompt-acts .btn-fill', 'Save')`, name: "you-port-restored", wait: 1200 },
