Historically the answer is nothing, or very little. The commercial products have a licensing mechanism that nags you, or at least it did. I don't know what thei

Historically the answer is nothing, or very little. The commercial products have a licensing mechanism that nags you, or at least it did. I don't know what their plan is on that - but I know they'll do it in public now. :) Since everything Chef makes is used for production infrastructure, they have historically avoided doing anything that would break functionality for license compliance.