I'd say Go might be your best bet - it's easy to generate executables, you get a simple type system, and it's pretty easy for anyone to pick up and modify a pro

I'd say Go might be your best bet - it's easy to generate executables, you get a simple type system, and it's pretty easy for anyone to pick up and modify a program in. However another alternative is to use the language of the project so it's uniform. Most languages are pretty usable for scripting.