nixos-config/flake.nix

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{
description = "Nixos configuration with flakes";
inputs = {
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nixpkgs = {
type = "github";
owner = "NixOS";
repo = "nixpkgs";
ref = "nixos-unstable";
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};
nixpkgs-unstable-small = {
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type = "github";
owner = "NixOS";
repo = "nixpkgs";
ref = "nixos-unstable-small";
};
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emacs-overlay = {
type = "github";
owner = "nix-community";
repo = "emacs-overlay";
ref = "master";
};
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home-manager = {
type = "github";
owner = "nix-community";
repo = "home-manager";
ref = "release-21.05";
inputs.nixpkgs.follows = "nixpkgs";
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};
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flake-utils = {
type = "github";
owner = "numtide";
repo = "flake-utils";
ref = "master";
};
nixos-hardware = {
type = "github";
owner = "NixOS";
repo = "nixos-hardware";
ref = "master";
};
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};
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outputs = { self, nixpkgs, home-manager, ... } @inputs: {
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nixosModules = {
home = {
home-manager.useGlobalPkgs = true;
home-manager.useUserPackages = true;
home-manager.users.alarsyo = import ./home;
home-manager.verbose = true;
};
};
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nixosConfigurations =
let
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system = "x86_64-linux";
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shared_overlays = [
(self: super: {
packages = import ./pkgs { pkgs = super; };
# packages accessible through pkgs.unstable.package
unstable = import inputs.nixpkgs-unstable-small {
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inherit system;
config.allowUnfree = true;
};
})
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];
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in {
poseidon = nixpkgs.lib.nixosSystem rec {
inherit system;
modules = [
./poseidon.nix
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home-manager.nixosModule
self.nixosModules.home
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{
nixpkgs.overlays = [
(self: super: {
fastPython3 = self.python3.override {
enableOptimizations = true;
reproducibleBuild = false;
self = self.fastPython3;
pythonAttr = "fastPython3";
};
matrix-synapse = super.matrix-synapse.override {
python3 = self.fastPython3;
};
})
] ++ shared_overlays;
}
];
};
boreal = nixpkgs.lib.nixosSystem rec {
inherit system;
modules = [
./boreal.nix
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home-manager.nixosModule
self.nixosModules.home
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{
nixpkgs.overlays = [
inputs.emacs-overlay.overlay
# uncomment this to build everything from scratch, fun but takes a
# while
#
# (self: super: {
# stdenv = super.impureUseNativeOptimizations super.stdenv;
# })
] ++ shared_overlays;
}
];
};
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zephyrus = nixpkgs.lib.nixosSystem rec {
inherit system;
modules = [
./zephyrus.nix
inputs.nixos-hardware.nixosModules.common-cpu-intel
inputs.nixos-hardware.nixosModules.common-pc-laptop
inputs.nixos-hardware.nixosModules.common-pc-ssd
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home-manager.nixosModule
self.nixosModules.home
{
nixpkgs.overlays = [
inputs.emacs-overlay.overlay
] ++ shared_overlays;
}
];
};
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};
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} // inputs.flake-utils.lib.eachDefaultSystem (system: {
packages =
inputs.flake-utils.lib.flattenTree
(import ./pkgs { pkgs = import nixpkgs { inherit system; }; });
});
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}