jdwhite

- Pi 4 to relay data from 433/915MHz weather station/temp/humidity sensors to MQTT using three SDRs and RTL_433 (consumed by Home Assistant, but could be read my anything subscribed to MQTT topic). One SDR for each 433/915MHz and a third that cycles between scanning 315, 345, and 868MHz every half hour.

- Two Pi 4s used as secondary DNS servers (with RPZ for blocking crap like Pi-Hole but using ISC BIND) for home network (fed from hidden primary).

- Pi 4 as a Linux workstation

- Pi 2 as a proxy between my solar inverter and WAN to intercept/decrypt traffic containing panel optimizer data not available from API

- Pi Zero W as serial console server.

T-Mobile is 1) being very open about selling your data and 2) giving you fairly easy ways to opt-out in advance. Like it or not, your data is an asset -- that's just the age we live in, but at least T-Mobile is giving you some control over its use.