Effortless Concurrency with Grain & Lunatic

on YouTube ↗26m

" summary

Demonstrates Grain compiled to WebAssembly running on Lunatic to build a working telnet chat server that accepts TCP, spawns per-connection processes, transfers streams between processes, and uses typed mailboxes for messages. Shows specific bindings (lunatic SDK), marshalled closures, and that the demo runs as chat.wasm on port 4444 with two clients exchanging messages. Notes no WebAssembly threads used, supervisor missing, and performance is practical though not Rust‑level.

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" chapters (5)

1. 0:00Start
2. 1:23Grain Code
3. 5:35Hello, world Lunatic Edition
4. 10:07A Full Application
5. 18:51Architecture Overview

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