refactor(flake-parts): initial flake-parts configuration

inputs/system/modules/base/nix/default.nix

@@ -0,0 +1,10 @@
+{ lib, ... }:
+
+{
+  imports = [
+    ./nh
+    ./nix
+    ./nixpkgs
+    ./subs
+  ];
+}

inputs/system/modules/base/nix/nh/default.nix

@@ -0,0 +1,22 @@
+{ pkgs, lib, config, ... }: 
+
+let
+  inherit (lib) mkIf;
+  host = config.systemModules.host;
+in
+
+{
+  config = mkIf (host.type != "phone") {
+  # TODO: i dont't want to hardcode this.
+    environment.variables.FLAKE = "/home/ooks/.config/ooknix/";
+
+    programs.nh = {
+      enable = true;
+      package = pkgs.nh;
+      clean = {
+        enable = true;
+        extraArgs = "--keep-since 30d";
+      };
+    };
+  };
+}

inputs/system/modules/base/nix/nix/default.nix

@@ -0,0 +1,23 @@
+{ config, lib, inputs, ... }: 
+
+let
+  inherit (lib) mkIf mapAttrs mkDefault;
+  host = config.systemModules.host;
+in
+
+{
+  config = mkIf (host.type != "phone") {
+    nix = {
+      settings = {
+        trusted-users = [ "root" "@wheel" ];
+        auto-optimise-store = mkDefault true;
+        experimental-features = [ "nix-command" "flakes" "repl-flake" ];
+        warn-dirty = false;
+        system-features = [ "kvm" "big-parallel" "nixos-test" ];
+        flake-registry = "";
+      };
+      registry = mapAttrs (_: value: { flake = value; }) inputs;
+      nixPath = [ "nixpkgs=${inputs.nixpkgs.outPath}" ];
+    }; 
+  };
+}

inputs/system/modules/base/nix/nixpkgs/default.nix

@@ -0,0 +1,26 @@
+{ lib, config, inputs, ... }:
+
+let
+  inherit (lib) mkIf;
+  host = config.systemModules.host;
+in
+
+{
+  config = mkIf (host.type != "phone") {
+    nixpkgs = {
+      config = {
+        allowUnfree = true;
+        permittedInsecurePackages = [
+          "openssl-1.1.1u"
+          "electron-25.9.0"
+        ];
+      };
+      overlays = [
+        (final: prev: {
+          waybar = inputs.nixpkgs-wayland.packages.${prev.system}.waybar;
+          zjstatus = inputs.zjstatus.packages.${prev.system}.default;
+        })
+      ];
+    };
+  };
+}

inputs/system/modules/base/nix/subs/default.nix

@@ -0,0 +1,33 @@
+{ lib, config, ... }:
+
+let
+  inherit (lib) mkIf;
+  host = config.systemModules.host;
+in
+
+{
+  config = mkIf (host.type != "phone") {
+    nix.settings = {
+      substituters = [
+        "https://cache.nixos.org?priority=10"
+        "https://fufexan.cachix.org"
+        "https://helix.cachix.org"
+        "https://hyprland.cachix.org"
+        "https://nix-community.cachix.org"
+        "https://nix-gaming.cachix.org"
+        "https://anyrun.cachix.org"
+        "https://nixpkgs-wayland.cachix.org"
+      ];
+
+      trusted-public-keys = [
+        "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+        "helix.cachix.org-1:ejp9KQpR1FBI2onstMQ34yogDm4OgU2ru6lIwPvuCVs="
+        "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
+        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+        "nix-gaming.cachix.org-1:nbjlureqMbRAxR1gJ/f3hxemL9svXaZF/Ees8vCUUs4="
+        "anyrun.cachix.org-1:pqBobmOjI7nKlsUMV25u9QHa9btJK65/C8vnO3p346s="
+        "nixpkgs-wayland.cachix.org-1:3lwxaILxMRkVhehr5StQprHdEo4IrE8sRho9R9HOLYA="
+      ];
+    };
+  };
+}