Wifi + Hotspot

Hello guys, I’m having 2 Pi at home, Z2(w) and Pico(w). My Z2 is connected to my private wifi (From modem). I want to find a way to connect my Pico to my Z2 using Wifi but not using the Wifi from my modem, for security reasons I think I can archive it by using a hotspot, can someone confirm ? Ideally : - The hotspot will not link the public network with it (I won’t have pico on internet) - The hotspot will be a ghost network - Any more security ideas ? Additional info : - I’m running Homebrige on my Z2 - Pico is used as a Homebrige http receiver - I’m not looking to use https, that’s why I prefer having a « strong secured network » between Z2 and Pico (Rather than having to deal with SSL and things..)

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I think you are after a Access Point (AP) solution.

I will search on that, thanks