I'm no network engineer so I'm not sure at all if this is even possible but: Mesh network in my city's CBD (aus) that costs just $10/mo for uncapped mobile acce

I'm no network engineer so I'm not sure at all if this is even possible but: Mesh network in my city's CBD (aus) that costs just $10/mo for uncapped mobile access. I'm sick of paying for $40-60/mo for calls/sms and maybe 2GB data. I mostly use mobile data in the CBD, but I might be an edge case.