@computersandblues 2010 I did similar things with old Siemens SE505 WLAN routers (which, after retrofitting USB and 32GB SDRAM also doubled as internet radio). It was exciting to get a Linux "server" by hacking a low cost consumer device. Modern mobiles, even the most simple one, have a USB, 250x more RAM and a 50x faster CPU. Phones are abundant, use less power than my SOHO routers, and no hardware hacking is needed.