# State of the BEAM Ecosystem in Nix

**URL:** https://discourse.nixos.org/t/state-of-the-beam-ecosystem-in-nix/4202
**Category:** Development
**Created:** [September 29, 2019, 3:15pm UTC](https://discourse.nixos.org/t/state-of-the-beam-ecosystem-in-nix/4202 "2019-09-29T15:15:25Z")
**Posts on this page:** 1
**Showing post:** 15

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### Author: ![anon31783435](https://discourse.nixos.org/letter_avatar_proxy/v4/letter/a/e0b2c6/32.png) [@anon31783435](https://discourse.nixos.org/u/anon31783435)
#### Post date: [October 1, 2020, 2:32pm UTC](https://discourse.nixos.org/t/state-of-the-beam-ecosystem-in-nix/4202/15 "2020-10-01T14:32:48Z")

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Another (probably better) approach is the one done by @hauleth - I haven’t explored in detail yet.  
→ [github.com/hauleth/nix-elixir](https://github.com/hauleth/nix-elixir)

Mentioned over here:

- [What's the current best-in-class approach to packaging Elixir/Erlang/BEAM applications using Nix+releases as of July 2020? - #6 by anon31783435](https://discourse.nixos.org/t/whats-the-current-best-in-class-approach-to-packaging-elixir-erlang-beam-applications-using-nix-releases-as-of-july-2020/8205/6)
- [github.com/NixOS/nixpkgs/pull/97245](https://github.com/NixOS/nixpkgs/pull/97245)

On my side, with the compilation time improvements within Elixir v1.11,  
I will start to get even more “un-pure” and try to reuse `_build` & `deps`.  
Build time within CI is a major important thing for me.

But I’ve already mentioned I use Nix as a sharable development environment setup  
and for perfect fast cache-able CI.  
So my preferences may differ.

* * *

Other things about the state of the BEAM within Nix:

I’ve prepared the update of Erlang to v23.1 → [github.com/NixOS/nixpkgs/pull/98646](https://github.com/NixOS/nixpkgs/pull/98646).  
But it’s once again slow in getting adopted.  
For me to have a perfect development environment it’s important to have latest versions fast available…

I also would prefer if we don’t prolong the update of the default `Erlang` within Nix too long.  
So in my opinion it should be time now to change from v22 to v23.1.

I’ve a look into upgrading `rebar3` to the latest version, as the current one would probably not build with Erlang v23.  
But the `rebar3` pkg seems too complicated for my Nix skills…

Good for now - all the best.

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_[View the full topic](https://discourse.nixos.org/t/state-of-the-beam-ecosystem-in-nix/4202)._