TermSpeak is a mod that allows you to speak on your walkie-talkie while in the terminal.
If you have a walkie-talkie powered on in your inventory, it will automatically be enabled while you are in the terminal.
This mod is client-side only, you can use it on servers without the host having it installed.
The mod is a standard BepInEx plugin, so just drop the .dll it in your BepInEx/plugins folder.
The configuration file is located in BepInEx/config/me.kdcf.termspeak.cfg.
All keys are described in the file.
To build the mod, make sure you copy/symlink the following files from the game directory into the TermSpeak/lib folder:
Assembly-CSharp.dllUnity.Netcode.Runtime.dll
Then run dotnet build in the TermSpeak folder. The output will be in TermSpeak/bin/Debug/net5.0/TermSpeak.dll.
You can discard the other files in the folder.