some modularizing and refactoring

nix/default.nix

@@ -0,0 +1,50 @@
+# Yanked from https://github.com/fufexan/dotfiles
+{
+  inputs,
+  lib,
+  config,
+  pkgs,
+  ...
+}: {
+  imports = [
+    ./nixpkgs
+    ./home-manager
+    ./substituters
+  ];
+
+  environment = {
+    systemPackages = with pkgs; [
+      git
+      stow
+    ];
+    localBinInPath = true;
+  };
+
+  console.useXkbConfig = true;
+
+  nix = let
+    flakeInputs = lib.filterAttrs (_: v: lib.isType "flake" v) inputs;
+  in {
+    package = pkgs.lix;
+
+    # pin the registry to avoid downloading and evaling a new nixpkgs version every time
+    registry = lib.mapAttrs (_: v: {flake = v;}) flakeInputs;
+
+    # set the path for channels compat
+    nixPath = lib.mapAttrsToList (key: _: "${key}=flake:${key}") config.nix.registry;
+
+    settings = {
+      auto-optimise-store = true;
+      builders-use-substitutes = true;
+      warn-dirty = false;
+      experimental-features = ["nix-command" "flakes"];
+      flake-registry = "/etc/nix/registry.json";
+
+      # # for direnv GC roots
+      # keep-derivations = true;
+      # keep-outputs = true;
+
+      trusted-users = ["root" "@wheel"];
+    };
+  };
+}

nix/home-manager/default.nix

@@ -0,0 +1,10 @@
+{inputs, ...}: {
+  imports = [
+    inputs.hm.nixosModules.default
+  ];
+
+  home-manager = {
+    useGlobalPkgs = true;
+    useUserPackages = true;
+  };
+}

nix/nixpkgs/default.nix

@@ -0,0 +1,13 @@
+{
+  nixpkgs = {
+    overlays = [
+      # (_: prev: {
+      #   python312 = prev.python312.override {packageOverrides = _: pysuper: {nose = pysuper.pynose;};};
+      # })
+    ];
+    config = {
+      allowUnfree = true;
+      input-fonts.acceptLicense = true;
+    };
+  };
+}

nix/shell/default.nix

@@ -0,0 +1,58 @@
+{
+  inputs,
+  pkgs ? import <nixpkgs> {},
+  ...
+}: {
+  default = pkgs.mkShell {
+    # Add Rust toolchain from Fenix and rust-analyzer-nightly
+    packages = [
+      (inputs.fenix.packages.${pkgs.stdenv.hostPlatform.system}.complete.withComponents [
+        "cargo"
+        "clippy"
+        "rust-src"
+        "rustc"
+        "rustfmt"
+      ])
+    ];
+
+    nativeBuildInputs = with pkgs; [
+      # Build tools
+      cmake # Build system generator
+      gnumake # GNU Make
+      pkg-config # Manages library paths during compilation
+      perl # Scripting language, sometimes needed during builds
+
+      # Version control
+      git # Version control system
+
+      # Auto-patching (include if needed)
+      autoPatchelfHook # Automatically patches ELF binaries
+
+      # Scripting languages (include if needed)
+      # nodejs       # JavaScript runtime environment
+    ];
+
+    buildInputs = with pkgs; [
+      # Graphics and UI libraries
+      aquamarine # Aquamarine compositor library for Wayland
+      egl-wayland # EGLStream-based Wayland platform
+      wayland # Wayland client library
+      wayland-protocols # Wayland protocols for Wayland applications
+      gtk3
+
+      # Cryptography
+      openssl # TLS/SSL library for networking and encryption
+    ];
+
+    shellHook = ''
+      # Set LD_LIBRARY_PATH if needed (temporary fix)
+      # export LD_LIBRARY_PATH="${pkgs.openssl.out}/lib:$LD_LIBRARY_PATH"
+
+      # Set SHELL to zsh if available
+      export SHELL=$(which zsh)
+      if [ "$SHELL" != "$(which zsh)" ]; then
+        exec $SHELL
+      fi
+    '';
+  };
+}

nix/substituters/default.nix

@@ -0,0 +1,25 @@
+{
+  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://yazi.cachix.org"
+      "https://chaotic-nyx.cachix.org"
+    ];
+
+    trusted-public-keys = [
+      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+      "fufexan.cachix.org-1:LwCDjCJNJQf5XD2BV+yamQIMZfcKWR9ISIFy5curUsY="
+      "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="
+      "yazi.cachix.org-1:Dcdz63NZKfvUCbDGngQDAZq6kOroIrFoyO064uvLh8k="
+      "chaotic-nyx.cachix.org-1:HfnXSw4pj95iI/n17rIDy40agHj12WfF+Gqk6SonIT8"
+    ];
+  };
+}