Modular, context-aware and aspect-oriented dendritic Nix configurations.
Discussions: https://oeiuwq.zulipchat.com/join/nqp26cd4kngon6mo3ncgnuap/
den.oeiuwq.com
configurations
den
dendritic
nix
aspect
oriented
docs: host-only pattern to avoid dups
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docs/src/content/docs/guides/bidirectional.mdx
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docs/src/content/docs/guides/bidirectional.mdx
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Read the documentation at [`context/user.nix`](https://github.com/vic/den/blob/main/modules/context/user.nix) for all the details.
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</Aside>
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<Aside title="Avoid dups with host-only module pattern" icon="rocket">
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Here's a pattern you can use to avoid duplication while `bidirectional` is enabled:
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```nix
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den.aspects.igloo.includes = [
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# wrap an aspect with perHost
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(den.lib.perHost igloo-only)
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# any other aspect can contribute to users
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shells
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music-production
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];
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# Use this aspect for host-only stuff, anything that would
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# lead to duplicates is safe in this list
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den.aspects.igloo-only = {
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includes = with den.aspects; [ facter disko ];
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nixos = { pkgs, ... }: {
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environment.systemPackages = [ pkgs.hello ];
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};
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}
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```
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> Tip inspired by `@drupol`.
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</Aside>
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## `den.provides.mutual-provider`
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An alternative to bidirectionality is [`den.provides.mutual-provider`](https://github.com/vic/den/blob/main/modules/aspects/provides/mutual-provider.nix).