Perhaps public libraries should get a subscription to Nebula. So anyone could just go to their public library, connect to the wifi with tablet or laptop and watch Nebula without an account.
Perhaps suggest it to your local librarian who can then escalate it to their superior during the next team meeting.
Similarly I get access to The Guardian without the increasingly annoying requests to donate using the app or the https://guardian.pressreader.com/ weblink once I am on the library wifi in Amsterdam. It even continues to work for 7 days after visiting the library. Like that I can read many other titles too.
For a library such a service is just a tiny fraction of their budget (labour being the biggest) and the price can be negotiated on a yearly basis, depending on the usage.
For Nebula that can become a reliable, stable source of income. And a way to get known. For the public library it can be a way to draw visitors who don't know how to find their way to the library. Win-win.