just wanted to report here i managed to get SDRtrunk installed on a raspberry pi 4 with 4gb of ram. the standard pi 4 processor is about 1.5Ghz and I overclocked this booger to 2.3Ghz. I was able to get the software to run and lock onto a control channel but the Pi 4 just didnt have enough horsepower to properly decode traffic. im no pi professional and could be doing something wrong but it didnt work so well for me. I even added an ice tower to keep it cool. picture below.