How do y'all feel about FreeIPA? I deployed it a couple of times and I quite like it, but it's not something you can whip up in an hour or two. The list of gotchas and "deployment considerations" all but guarantee you'll have to reinstall the server at least a couple of times.
requiring that telecommunications carriers and manufacturers of telecommunications equipment modify and design their equipment, facilities, and services to ensure that they have built-in capabilities for targeted surveillance
Sorry but both points are irrelevant, nonprofit foundations can still be forced to turn over user information. That is part of following the law so nothing that would need to be hidden to auditors, unless you were talking about encryption audits which is completely besides the point
All your phone number provides is that you have ever used signal? Not what tower you're connected to and therefore approximate realtime location? Your full identity via your telco? Social graph and history of your calls and texts?
I'm not saying it's their fault or that they are volunteering any information, but that's how it is for any US-based corporation (doesn't matter if it's a nonprofit, any legal entity that can be subpoenaed)
The whole "futures market" thing is just legalised market manipulation and gambling on a global scale