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Show HN: Visual flow-based programming for Erlang, inspired by Node-RED

Published on: 2025-07-06 00:54:13

Erlang-RED - A Node-RED backend coded in Erlang An experiment to replace Node-REDs existing NodeJS backend with an Erlang equivalent that is 100% compatible[1] to existing flow code. The goal is bring the advantages of low-code visual flow-based programming to a programming language that is designed for message passing and concurrency from the ground up, hence Erlang. [1] = 100% won't be possible since function nodes that are coded in Javascript aren't supported (or aren't intended to be supported - unless someone has a workaround) Node-RED is a amazing[*] tool for creating flows that describe concurrent processing, it is just a shame the NodeJS is single threaded. So why not use something that is multi-process from the ground up? Concurrency is guaranteed and included. Also Erlang isn't the most understandable of programming language - unless one has fallen into in a cauldron of Prolog, spiced with Lisp. So won't it be great to have the simplicity of low-code visual flow based p ... Read full article.