Erlang/OTP 24 Highlights

This page summarizes the projects mentioned and recommended in the original post on

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  • Elixir

    Elixir is a dynamic, functional language designed for building scalable and maintainable applications

    FWIW, I recently pushed a commit to master that made loading of Elixir's test suite 33% faster (from 15s to 10s):

    Unfortunately, it is a bit too large (and too late) for v1.12, but if loading times have been problematic for you, it would be awesome if you could try master out and let us know in the issues tracker (or in the commit) if you see any improvements.

  • Norm

    Data specification and generation

    I generally verify types only at the boundaries of my application (or very critical modules) using norm[1].

    Either you have a strict type system that does not have an "any" type (yes, I'm looking at you Typescript), or you have a flexible type system like Python/Erlang/Elixir and you do runtime type checking whenever it's needed.

    I'm writing more Typescript code than I would in Javascript for almost no type safety benefits (but for documentation, it's awesome).

    [1] -

  • Scout APM

    Less time debugging, more time building. Scout APM allows you to find and fix performance issues with no hassle. Now with error monitoring and external services monitoring, Scout is a developer's best friend when it comes to application development.

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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