When users are behind NAT firewalls (i.e. using cellular or another dumb ISP), they can't be directly connected to with WebRTC. This necessitates running all data across a relay server (TURN).

What affordable or free TURN options are out there?

While I'd like to leave as much of this codebase as possible unchanged, the dependencies are really out of date.

This issue should hopefully take 30 minutes or less, probably a good one to tackle first.

Cloudflare's new serverless Workers platform may be a perfect platform for Melon's small server.

Highlights:

• Room codes: their API supports a simple key-value store that supports key listing, prefixes, and expiration:
  https://developers.cloudflare.com/workers/runtime-apis/kv
• Payments: if we add accounts/payments at some point Cloudflare can run request-response work with a payment processor.
• Analytics: again, the KV store can keep logs and usage information no problem.

Still needs investigation:

• Cost: what's an estimated monthly cost once we pass the free tier?
• Migration: Vendor lock-in is a concern. What would it take to migrate data out to AWS Lambda or another serverless platform if needed?