Create iPhone local area network in non internet area with no electricity
Scenario: Remote cabin. No electricity. Just iPhones and some Airplay speakers (charged up during day with camping solar). No wi-fi router.
Would like to create a LAN on the phone so the Phone has wi-fi which the Airplay speakers can join so they can play music files brought with us on the phone. How?
3.5 AUX not present on speakers.
iPhone XR