I'd suggest you to contact sales to learn the details of custom licensing options if you haven't already, also to make sure you're understanding the active users correctly for your case.
It still offers an open source option so you can test all its limits and see if it fits your case or not. Also if your project is not proprietary there is still the free for open source option in case your project is not compatible with GPL2+.
It still offers an open source option so you can test all its limits and see if it fits your case or not. Also if your project is not proprietary there is still the free for open source option in case your project is not compatible with GPL2+.