Nice and kudos for your efforts.

For convincing people it never being monetized this is not enough.

You'll need

1. A copyleft license (to prevent the Redis case)

2. No CLA (to prevent unilateral relicensing)

3. A large enough and diverse enough set of contributors that makes relicensing unpractical enough for user to believe it will never happen

Nice. And the project is mature too. Don't know why I've never heard of it until now. Thank you.

Absolute GitHub.