Elmrang Connect

on YouTube ↗44m

" summary

Shows a concrete pipeline: an Elm front end talking to Erlang BEAM over WebSockets using Cowboy + bullet to get a single low‑latency TCP connection instead of long polling. Claims a lightweight Web‑IDE that runs on the embedded device, compiles PLC function blocks to Erlang processes, and streams realtime state updates. Explores JSON decoding pain and alternatives like external term format, offers an Elmrang prototype (Elmrang Connect) and demos a responsive traffic‑light PLC that actually works.

AI-written summary · about

" chapters (7)

1. 0:00Start
2. 12:52Purely Functional
3. 13:45Static Type System
4. 35:28Elm Fundamentals
5. 38:00a different way of thinking about variables
6. 38:32non-awkward way of structuring callbacks
7. 38:56Practical Aspects

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