DigitalOcean CDN Question

Hiya

First thanks for all your work, h5p is awesome!!!

Almost a year ago I set up a small Drupal site for a trial project Māori weaving to women prisoners in New Zealand so they have a tradable skill on release. The project has gone well - in fact it's a finalist in the New Zealand Open Source Awards and the ceremony is tomorrow night so fingers crossed!

Trouble is it went so well they have issues with the playback of the video when multiple people are watching and due to their inane security issues they wouldn't let me use any external CDNs to host the video files so it's all on one DigitalOcean droplet. This kept the cost down to about $20pcm but in order to rectify the playback problems I had to put it on a performance improved setup on DigitalOcean which is now costing $100pcm and not really scalable.

DigitalOcean now have 'Spaces' which I can use as a CDN and I've been reading the documentation and support there, here, and on the Drupal module but I can't figure out whether this is going to work as an option so I thought I'd post here before spending time and money finding out it doesn't. I'm not really a server person, more sticking modules together and hacking code where needed.

I'm using the Tutorial content type and Interactive Video, and am awaiting some files for the captions as saw I could upload them - the client was going to embed them but it took days to ffmpeg the files down to sensible sizes last time so I don't want to go through all that again, plus it's more accessible that way. But that's not my quesiton here but thought it might be an issue so mentioning it.

Thanks for any advice, would be good to get the hosting cost down again and provide a more scalable solution as they're deciding in a couple of months as to whether to roll out to all prisons across NZ which would be cool!