If you really want zero network theres always Valetudo, https://valetudo.cloud/ https://valetudo.cloud/ But most of the vacuums want internet access for setup,

If you really want zero network theres always Valetudo, https://valetudo.cloud/ https://valetudo.cloud/ But most of the vacuums want internet access for setup, but then work completely fine being blocked from the internet after.