I have long argued that teams should write configs in one of the languages they already know and are using in the system. This has many obvious benefits, inclu

I have long argued that teams should write configs in one of the languages they already know and are using in the system. This has many obvious benefits, including testing! A key aspect is for the owner of the "config system" (the stuff that takes the output of each config program and applies it) to standardize the API for config generators. Inputs, outputs, runtime env, etc. Then let teams integrate with that API however they want.