ChirpStack with RAK2245

Hello, I am new to chirpstack.
I have a RAK 2245 which works well with TTN but i wish to start using chirpstack.

Here are my questions:

  1. I am not able to find any Indian Frequency plan.
  2. If i use the the image file then the complete RAK2245 +Rpi acts as the whole system, instead if i wish to use a seperate desktop PC using linux to act as the network server and application server and the gateway bridge on the gateway, what should i use the precompiled binaries or the command line codes?

I am new and was not able to find these answers.
Please if somebody can help me regarding this it would be great.