RAK 7289 gateway with open wrt and multiplexer

i hope someone can help me here… i need to connect my RAK7289 to 2 different chirpstack instances for redundancy… (2x NS) and have seen the multiplexer… anyone done this before on a rak gateway? any ideas on if it works and how to get it running? @brocaar ?
thanks in advance for the help!

Arthur

any help on this one? i would appreciate any tips on how to install the multiplexer on a rak 7289 gateway… thanks again!

Arthur