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*pointers by \@natsukagami*
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from [nixos wiki](https://nixos.wiki/wiki/Nginx#LEMP_stack)
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## adding a package with an overlay to a package set
for package sets with a scope, you will have to do something like
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however i do not think that's the best way lol
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## importing nixpkgs with an empty attrset
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ever had this in your flake.nix
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outputs = { nixpkgs, ... }@inputs: let
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pkgs = import nixpkgs {};
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... and got fucked with this?
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… while checking flake output 'nixosConfigurations'
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at /nix/store/lz2ra1180qfffmpwg41jpyg1z602qdgx-source/flake.nix:50:5:
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50| nixosConfigurations = {
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51| koumakan = (import ./systems/koumakan { inherit pkgs lib inputs; });
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… while checking the NixOS configuration 'nixosConfigurations.koumakan'
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at /nix/store/lz2ra1180qfffmpwg41jpyg1z602qdgx-source/flake.nix:51:7:
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50| nixosConfigurations = {
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51| koumakan = (import ./systems/koumakan { inherit pkgs lib inputs; });
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(stack trace truncated; use '--show-trace' to show the full trace)
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error: attribute 'currentSystem' missing
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at /nix/store/5c0k827yjq7j24qaq8l2fcnsxp7nv8v1-source/pkgs/top-level/impure.nix:17:43:
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16| # (build, in GNU Autotools parlance) platform.
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17| localSystem ? { system = args.system or builtins.currentSystem; }
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just don't!!!11 remove the pkgs definition. (note that this only applies to `pkgs = import nixpkgs {};`)
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> you shouldn't ever really import nixpkgs with an empty attrset either
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> that causes it to fall back on guessing your system using `builtins.currentSystem`,
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> which is impure and so not allowed in pure evaluation mode
Builtin stdlib functions search engine: https://noogle.dev/
soopy.moe