If writing code or RF engineering is your thing, you might be interested to know that we open-sourced the configuration software and other RF-related hardware, firmware, and software. We will have more repos available soon.
https://github.com/tvelliott/MicroP25RX_Wio
https://github.com/bluetailtech/BTConfig
https://github.com/bluetailtech/p25rx_display
https://github.com/bluetailtech
https://github.com/tvelliott
https://github.com/bluetailtech/ADV-BTCFG-II
https://github.com/bluetailtech/BTCFG-II