Exploring the P2P world with WebRTC & JavaScript
summary
Claim: WebRTC plus Kademlia DHT and BitTorrent primitives can recreate decentralised web apps that run in browsers. Demonstrations include WebTorrent in-browser BitTorrent that serves arbitrary blobs as torrents, mandatory DTLS session encryption, and connection setup using ICE STUN and TURN candidates for NAT traversal. Practical limits appear: browser connection limits and short-lived tabs break large DHTs, TURN is costly, and workarounds like service workers or hybrid nodes are suggested but not yet solved.
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chapters (16)
- 0:00Intro
- 2:33Federated Internet
- 4:30Centralized Internet
- 5:57Perils of Centralization
- 8:40Fundamentals
- 10:24Data channels
- 16:07NAT traversal
- 17:24STUN & TURN
- 21:03Full mesh topology
- 21:37Star topology
- 22:23Structured networks
- 22:54BitTorrent
- 25:16Not only file sharing
- 26:29WebRTC Limitations
- 28:16Distributed systems are hard
- 29:25Economy and incentives
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