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{
description = "Bleeding edge Emacs overlay";
nixConfig = {
extra-substituters = [ "https://nix-community.cachix.org" ];
extra-trusted-public-keys = [ "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs=" ];
};
inputs = {
flake-utils.url = "github:numtide/flake-utils";
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
};
outputs =
{ self
, nixpkgs
, flake-utils
}: {
# self: super: must be named final: prev: for `nix flake check` to be happy
overlays = {
default = final: prev: import ./overlays final prev;
emacs = final: prev: import ./overlays/emacs.nix final prev;
package = final: prev: import ./overlays/package.nix final prev;
};
# for backward compatibility, is safe to delete, not referenced anywhere
overlay = self.overlays.default;
} // flake-utils.lib.eachDefaultSystem (system: (
let
pkgs = import nixpkgs {
inherit system;
config.allowAliases = false;
overlays = [ self.overlays.default ];
};
inherit (pkgs) lib;
overlayAttributes = lib.pipe (import ./. pkgs pkgs) [
builtins.attrNames
(lib.partition (n: lib.isDerivation pkgs.${n}))
];
attributesToAttrset = attributes: lib.pipe attributes [
(map (n: lib.nameValuePair n pkgs.${n}))
lib.listToAttrs
];
in
{
lib = attributesToAttrset overlayAttributes.wrong;
packages = attributesToAttrset overlayAttributes.right;
}
));
}
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