@eriner If you're looking for better hardware than an RTL-SDR dongle I use a LimeSDR mini. SoapySDR is pretty stable, you can hang a Pi on your network with a LimeSDR and Soapy Remote.
You'll probably have to acquire an AMBE 3000 chip if you want to decode everything, unfortunately. I just picked up a Zum AMBE server (AMBE 3000 interfaced to an ESP32) this past week. Expensive but I'm planning on interfacing my D-Star repeater with Allstar to get into the club's analog repeater network.