Hi, this little MM patch should add support for Kerbalism signal system. Cheers.

@PART[*]:HAS[@MODULE[ModuleCommand],#CrewCapacity[>0]]:FOR[RadioFreeKerbin]:BEFORE[Kerbalism]:NEEDS[!RemoteTech,!AntennaRange,EnableSignal]
{
  @MODULE[ModuleDataTransmitter]
  {
    @name = Antenna
    %scope = home
    %relay_cost = 0.06
    %min_transmission_cost = 2.0
    %max_transmission_cost = 8.0
  }
}

I've added it to the dev branch and will probably pull it to main and do another release in the next day or so. Thanks, I'm glad to support your mod!

I'm sorry, I forgot to do another release after making the changes. I am doing so now.