> For purposes of the foregoing, “Sell” means practicing any or all of the rights granted to you under the License to provide to third parties, for a fee or other consideration (including without limitation fees for hosting or consulting/ support services related to the Software), a product or service whose value derives, entirely or substantially, from the functionality of the Software.

If you consult for a company optimize a bunch of their redis queries, it could easily be argued that your consulting service has value that derives substantially from redis.

This licence worries me somewhat. I would definitely prefer a GPL and ask me if you want to licence it kind of situation as you definitely know where you are.

Guess we'll see what happens with this.

EDIT: IANAL