Pretty easy, I had no background in voice assistants before. You set up the intents on their console site, rack your brain for every way you could phrase a command, and then press a button and Snips will let you download the trained assistant in a .zip file.

They have examples in JS and python for simple client apps to build from; the platform sends processed intent messages over local MQTT, so it's just a loop to listen and process those intents into commands to send via USBTMC.