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The discussion on the PR linked in this post, about upstreaming lazy trees to Nix proper, seems to indicate that some of the benefits also require changing the semantics of the Nix language.

I'm not familiar enough with Nix to understand, but it looks like the performance gains in the blog post might not all materialize to upstream users.

In any case, cool stuff

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I feel like Nix' language may be the biggest hurdle for beginners/newcomers.

Interestingly, I recently found out that someone is working on being able to compile Gleam to Nix: https://codeberg.org/glistix/glistix

Nope! This feature is completely agnostic to the Nix language, dealing only with how/when files are copied to the Nix store. More of an under-the-hood implementation detail than anything, although one with important consequences.

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