refactor: nix fmt classic to nix fmt

AGENTS.md

@@ -8,7 +8,7 @@ Custom packages live in `packages/` and are exported via `packages/default.nix`.
 
 ## Build, Test, and Development Commands
 
-Use `nix develop` to enter the project shell with `git`, `nixfmt-classic`, and SOPS ready. Run `nix fmt` before committing to format all Nix sources. `XDG_CACHE_HOME=$PWD/.cache nix flake check` validates every host without polluting the global cache. For macOS changes, run `darwin-rebuild --dry-run --flake .#macbook-pro` and follow with `darwin-rebuild switch --flake .#macbook-pro`. Validate the Linux VM closure via `nix build .#nixosConfigurations.dev-vm.config.system.build.toplevel`.
+Use `nix develop` to enter the project shell with `git`, `nixfmt`, and SOPS ready. Run `nix fmt` before committing to format all Nix sources. `XDG_CACHE_HOME=$PWD/.cache nix flake check` validates every host without polluting the global cache. For macOS changes, run `darwin-rebuild --dry-run --flake .#macbook-pro` and follow with `darwin-rebuild switch --flake .#macbook-pro`. Validate the Linux VM closure via `nix build .#nixosConfigurations.dev-vm.config.system.build.toplevel`.
 
 ## AI Agent Workflow with Beads
 

flake.nix

@@ -18,8 +18,7 @@
     llm-agents.url = "github:numtide/llm-agents.nix";
 
     # Pinned llm-agents for Claude Code 2.0.64 (uses its own nixpkgs for compatibility)
-    llm-agents-pinned.url =
+    llm-agents-pinned.url = "github:numtide/llm-agents.nix/4a12b5bef5a82b71da765603df5192c511a60cc2";
-      "github:numtide/llm-agents.nix/4a12b5bef5a82b71da765603df5192c511a60cc2";
 
     sops-nix.url = "github:Mic92/sops-nix";
     sops-nix.inputs.nixpkgs.follows = "nixpkgs";
@@ -30,14 +29,32 @@
     try.inputs.nixpkgs.follows = "nixpkgs";
   };
 
-  outputs = inputs@{ self, nixpkgs, darwin, home-manager, ghostty, llm-agents
+  outputs =
-    , llm-agents-pinned, sops-nix, chaotic, try, ... }:
+    inputs@{
+      self,
+      nixpkgs,
+      darwin,
+      home-manager,
+      ghostty,
+      llm-agents,
+      llm-agents-pinned,
+      sops-nix,
+      chaotic,
+      try,
+      ...
+    }:
     let
       inherit (nixpkgs.lib) genAttrs;
       lib = nixpkgs.lib;
 
-      darwinSystems = [ "aarch64-darwin" "x86_64-darwin" ];
+      darwinSystems = [
-      linuxSystems = [ "x86_64-linux" "aarch64-linux" ];
+        "aarch64-darwin"
+        "x86_64-darwin"
+      ];
+      linuxSystems = [
+        "x86_64-linux"
+        "aarch64-linux"
+      ];
       systems = darwinSystems ++ linuxSystems;
 
       forEachSystem = f: genAttrs systems (system: f system);
@@ -48,7 +65,8 @@
       # - chaotic: removed - only needed for NixOS, was causing nix to rebuild with failing tests
       overlaysList = [ ];
 
-      mkPkgs = system:
+      mkPkgs =
+        system:
         import nixpkgs {
           inherit system;
           overlays = overlaysList;
@@ -56,21 +74,31 @@
         };
 
       sharedDarwinModules = [ ./modules/darwin/system.nix ];
-      sharedNixosModules =
+      sharedNixosModules = [
-        [ ./modules/nixos/system.nix chaotic.nixosModules.default ];
+        ./modules/nixos/system.nix
+        chaotic.nixosModules.default
+      ];
 
       user = "rasyidanakbar";
 
-      mkDarwin = { system ? "aarch64-darwin", extraModules ? [ ]
+      mkDarwin =
-        , homeFile ? ./modules/darwin/home/default.nix, }:
+        {
+          system ? "aarch64-darwin",
+          extraModules ? [ ],
+          homeFile ? ./modules/darwin/home/default.nix,
+        }:
         let
           pkgs = mkPkgs system;
           customPkgs = import ./packages { inherit pkgs lib llm-agents; };
-        in darwin.lib.darwinSystem {
+        in
+        darwin.lib.darwinSystem {
           inherit pkgs;
           system = pkgs.stdenv.hostPlatform.system;
           specialArgs = { inherit inputs overlaysList user; };
-          modules = sharedDarwinModules ++ extraModules ++ [
+          modules =
+            sharedDarwinModules
+            ++ extraModules
+            ++ [
               home-manager.darwinModules.home-manager
               {
                 nix.registry.self.flake = self;
@@ -80,22 +108,35 @@
                 home-manager.useUserPackages = true;
                 home-manager.backupFileExtension = "backup";
                 home-manager.extraSpecialArgs = {
-                inherit inputs user try customPkgs;
+                  inherit
+                    inputs
+                    user
+                    try
+                    customPkgs
+                    ;
                 };
                 home-manager.users.${user} = import homeFile;
               }
             ];
         };
-      mkNixos = { system ? "x86_64-linux", extraModules ? [ ]
+      mkNixos =
-        , homeFile ? ./modules/nixos/home/default.nix, }:
+        {
+          system ? "x86_64-linux",
+          extraModules ? [ ],
+          homeFile ? ./modules/nixos/home/default.nix,
+        }:
         let
           pkgs = mkPkgs system;
           customPkgs = import ./packages { inherit pkgs lib llm-agents; };
-        in lib.nixosSystem {
+        in
+        lib.nixosSystem {
           inherit pkgs;
           system = pkgs.stdenv.hostPlatform.system;
           specialArgs = { inherit inputs overlaysList user; };
-          modules = sharedNixosModules ++ extraModules ++ [
+          modules =
+            sharedNixosModules
+            ++ extraModules
+            ++ [
               home-manager.nixosModules.home-manager
               {
                 nix.registry.self.flake = self;
@@ -104,14 +145,22 @@
                 home-manager.useGlobalPkgs = true;
                 home-manager.useUserPackages = true;
                 home-manager.extraSpecialArgs = {
-                inherit inputs user try customPkgs;
+                  inherit
+                    inputs
+                    user
+                    try
+                    customPkgs
+                    ;
                 };
                 home-manager.users.${user} = import homeFile;
               }
             ];
         };
-    in {
+    in
-      darwinConfigurations = { macbook-pro = mkDarwin { }; };
+    {
+      darwinConfigurations = {
+        macbook-pro = mkDarwin { };
+      };
       nixosConfigurations = {
         # Temporarily disabled for testing
         # dev-vm = mkNixos {
@@ -128,24 +177,30 @@
         # };
       };
 
-      devShells = forEachSystem (system:
+      devShells = forEachSystem (
+        system:
         let
           pkgs = mkPkgs system;
-          python = if builtins.hasAttr "python312" pkgs then
+          python = if builtins.hasAttr "python312" pkgs then pkgs.python312 else pkgs.python3;
-            pkgs.python312
-          else
-            pkgs.python3;
 
           # Custom packages
           customPkgs = import ./packages { inherit pkgs lib llm-agents; };
 
           # Common arguments passed to all devshell imports
-          shellArgs = { inherit pkgs lib python customPkgs; };
+          shellArgs = {
+            inherit
+              pkgs
+              lib
+              python
+              customPkgs
+              ;
+          };
 
           # Import all shells from shells/ directory
           importShell = name: import (./shells + "/${name}.nix") shellArgs;
 
-        in {
+        in
+        {
           default = importShell "default";
           python-uv = importShell "python-uv";
           ai-notebook = importShell "ai-notebook";
@@ -155,20 +210,29 @@
           rust = importShell "rust";
           ai-agent = importShell "ai-agent";
           effect-ts = importShell "effect-ts";
-        });
+        }
+      );
 
-      formatter = forEachSystem (system: (mkPkgs system).nixfmt-classic);
+      formatter = forEachSystem (system: (mkPkgs system).nixfmt);
 
-      packages = forEachSystem (system:
+      packages = forEachSystem (
+        system:
         let
           pkgs = mkPkgs system;
           customPkgs = import ./packages { inherit pkgs lib llm-agents; };
-        in customPkgs // { inherit (pkgs) git; });
+        in
+        customPkgs // { inherit (pkgs) git; }
+      );
 
-      checks = forEachSystem (system:
+      checks = forEachSystem (
+        system:
         let
           pkgs = mkPkgs system;
           customPkgs = import ./packages { inherit pkgs lib llm-agents; };
-        in { inherit (customPkgs) opencode; });
+        in
+        {
+          inherit (customPkgs) opencode;
+        }
+      );
     };
 }

hosts/desktop.nix

@@ -1,12 +1,11 @@
 { lib, pkgs, ... }:
 let
-  hardwareConfigPath = builtins.toString ./.
+  hardwareConfigPath =
-    + "/../modules/nixos/desktops/hardware-configuration.nix";
+    builtins.toString ./. + "/../modules/nixos/desktops/hardware-configuration.nix";
-  hardwareModule = if builtins.pathExists hardwareConfigPath then
+  hardwareModule =
-    import hardwareConfigPath
+    if builtins.pathExists hardwareConfigPath then import hardwareConfigPath else (_: { });
-  else
+in
-    (_: { });
+{
-in {
   # Unified desktop configuration for gaming and development
   # Includes both KDE Plasma and Hyprland - switch at login screen
 

hosts/dev-vm.nix

@@ -1,4 +1,5 @@
-{ lib, pkgs, ... }: {
+{ lib, pkgs, ... }:
+{
   networking.hostName = "dev-vm";
   # Set the baseline NixOS release used for stateful data; bump on rebuilds.
   system.stateVersion = lib.mkDefault "24.05";

modules/darwin/devtools.nix

@@ -1,8 +1,14 @@
-{ config, pkgs, lib, ... }:
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
 let
   inherit (lib) mkIf mkOption types;
   cfg = config.rsydn.systemPackages;
-in {
+in
+{
   options.rsydn.systemPackages = {
     enable = mkOption {
       type = types.bool;
@@ -13,8 +19,7 @@ in {
     packages = mkOption {
       type = types.listOf types.package;
       default = with pkgs; [ tailscale ];
-      description =
+      description = "System packages that must be available globally across macOS.";
-        "System packages that must be available globally across macOS.";
     };
   };
 

modules/darwin/home/default.nix

@@ -1,4 +1,10 @@
-{ config, pkgs, lib, ... }: {
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+{
   # Import shared cross-platform home configuration
   imports = [
     ../../home/base.nix

modules/darwin/home/programs/aerospace/default.nix

@@ -7,7 +7,8 @@ let
   };
 
   userSettings = import ./user-settings.nix { modes = modes; };
-in {
+in
+{
   programs.aerospace = {
     enable = true;
     package = pkgs.aerospace;

modules/darwin/home/programs/aerospace/modes.nix

@@ -1,4 +1,5 @@
-{ workspaceFocusBindings, workspaceSendBindings }: {
+{ workspaceFocusBindings, workspaceSendBindings }:
+{
   main.binding = {
     "alt-h" = "focus left";
     "alt-j" = "focus down";
@@ -27,7 +28,9 @@
     "alt-r" = "mode resize";
     "alt-f" = "mode float";
     "alt-shift-semicolon" = "mode service";
-  } // workspaceFocusBindings // workspaceSendBindings;
+  }
+  // workspaceFocusBindings
+  // workspaceSendBindings;
 
   float.binding = {
     enter = ''exec-and-forget open -na "Ghostty" && aerospace layout floating'';
@@ -36,8 +39,11 @@
       "layout floating"
       "mode main"
     ];
-    g =
+    g = [
-      [ ''exec-and-forget open -na "Ghostty"'' "layout floating" "mode main" ];
+      ''exec-and-forget open -na "Ghostty"''
+      "layout floating"
+      "mode main"
+    ];
     esc = "mode main";
   };
 
@@ -52,13 +58,37 @@
   };
 
   service.binding = {
-    esc = [ "reload-config" "mode main" ];
+    esc = [
-    r = [ "flatten-workspace-tree" "mode main" ];
+      "reload-config"
-    f = [ "layout floating tiling" "mode main" ];
+      "mode main"
-    backspace = [ "close-all-windows-but-current" "mode main" ];
+    ];
-    h = [ "join-with left" "mode main" ];
+    r = [
-    j = [ "join-with down" "mode main" ];
+      "flatten-workspace-tree"
-    k = [ "join-with up" "mode main" ];
+      "mode main"
-    l = [ "join-with right" "mode main" ];
+    ];
+    f = [
+      "layout floating tiling"
+      "mode main"
+    ];
+    backspace = [
+      "close-all-windows-but-current"
+      "mode main"
+    ];
+    h = [
+      "join-with left"
+      "mode main"
+    ];
+    j = [
+      "join-with down"
+      "mode main"
+    ];
+    k = [
+      "join-with up"
+      "mode main"
+    ];
+    l = [
+      "join-with right"
+      "mode main"
+    ];
   };
 }

modules/darwin/home/programs/aerospace/user-settings.nix

@@ -1,4 +1,5 @@
-{ modes }: {
+{ modes }:
+{
   enable-normalization-flatten-containers = true;
   enable-normalization-opposite-orientation-for-nested-containers = true;
   default-root-container-layout = "tiles";

modules/darwin/home/programs/aerospace/workspaces.nix

@@ -4,13 +4,20 @@ let
 
   workspaceNumbers = map toString (lib.range 1 9);
 
-  workspaceFocusBindings = listToAttrs (map (ws: {
+  workspaceFocusBindings = listToAttrs (
+    map (ws: {
       name = "alt-${ws}";
       value = "workspace ${ws}";
-  }) workspaceNumbers);
+    }) workspaceNumbers
+  );
 
-  workspaceSendBindings = listToAttrs (map (ws: {
+  workspaceSendBindings = listToAttrs (
+    map (ws: {
       name = "alt-shift-${ws}";
       value = "move-node-to-workspace ${ws}";
-  }) workspaceNumbers);
+    }) workspaceNumbers
-in { inherit workspaceNumbers workspaceFocusBindings workspaceSendBindings; }
+  );
+in
+{
+  inherit workspaceNumbers workspaceFocusBindings workspaceSendBindings;
+}

modules/darwin/home/programs/ghostty.nix

@@ -1,4 +1,5 @@
-{ config, ... }: {
+{ config, ... }:
+{
   programs.ghostty = {
     enable = true;
     package = null;

modules/darwin/homebrew.nix

@@ -2,7 +2,8 @@
 let
   inherit (lib) mkIf mkOption types;
   cfg = config.rsydn.homebrew;
-in {
+in
+{
   options.rsydn.homebrew = {
     enable = mkOption {
       type = types.bool;
@@ -16,7 +17,12 @@ in {
     };
     brews = mkOption {
       type = types.listOf types.str;
-      default = [ "curl" "yt-dlp" "infisical" "mole" ];
+      default = [
+        "curl"
+        "yt-dlp"
+        "infisical"
+        "mole"
+      ];
       description = "Homebrew formulae to install.";
     };
     casks = mkOption {

modules/darwin/system.nix

@@ -1,5 +1,15 @@
-{ config, pkgs, lib, user, ... }: {
+{
-  imports = [ ./homebrew.nix ./devtools.nix ];
+  config,
+  pkgs,
+  lib,
+  user,
+  ...
+}:
+{
+  imports = [
+    ./homebrew.nix
+    ./devtools.nix
+  ];
 
   nix = {
     # Use default nix version from nixpkgs (don't pin to avoid rebuild issues)
@@ -8,12 +18,14 @@
       keep-outputs = true
     '';
     settings = {
-      experimental-features = [ "nix-command" "flakes" ];
+      experimental-features = [
+        "nix-command"
+        "flakes"
+      ];
       warn-dirty = false;
       # Numtide binary cache for llm-agents.nix packages
       extra-substituters = [ "https://cache.numtide.com" ];
-      extra-trusted-public-keys =
+      extra-trusted-public-keys = [ "numtide.cachix.org-1:2ps1kLBUWjxIneOy1Ber8L+2z9FqRZJ+KBKGE4NNsT0=" ];
-        [ "numtide.cachix.org-1:2ps1kLBUWjxIneOy1Ber8L+2z9FqRZJ+KBKGE4NNsT0=" ];
     };
     optimise.automatic = true;
     gc = {
@@ -27,7 +39,10 @@
     };
   };
 
-  environment.shells = [ pkgs.nushell "/etc/profiles/per-user/${user}/bin/nu" ];
+  environment.shells = [
+    pkgs.nushell
+    "/etc/profiles/per-user/${user}/bin/nu"
+  ];
 
   # Set XDG Base Directory environment variables globally
   # This ensures nushell and other XDG-compliant tools use ~/.config

modules/home/base.nix

@@ -1,4 +1,10 @@
-{ pkgs, lib, customPkgs, ... }: {
+{
+  pkgs,
+  lib,
+  customPkgs,
+  ...
+}:
+{
   imports = [
     ./programs/fastfetch
     ./programs/helix.nix
@@ -23,7 +29,10 @@
 
     programs.git.enable = true;
 
-    home.packages = with pkgs; [ docker docker-compose ];
+    home.packages = with pkgs; [
+      docker
+      docker-compose
+    ];
 
     rsydn.aiTools = {
       enable = lib.mkDefault true;

modules/home/devtools/ai-tools.nix

@@ -1,6 +1,18 @@
-{ config, lib, pkgs, inputs, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  inputs,
+  ...
+}:
 let
-  inherit (lib) mkEnableOption mkOption types mkIf escapeShellArg;
+  inherit (lib)
+    mkEnableOption
+    mkOption
+    types
+    mkIf
+    escapeShellArg
+    ;
   cfg = config.rsydn.aiTools;
   system = pkgs.stdenv.hostPlatform.system;
 
@@ -10,15 +22,19 @@ let
   llmPkgsPinned = inputs.llm-agents-pinned.packages.${system};
 
   # Z.AI Gateway wrapper for Claude Code
-  zaiWrapperPackages = let zaiCfg = cfg.zai;
+  zaiWrapperPackages =
-  in if zaiCfg.enable then
+    let
+      zaiCfg = cfg.zai;
+    in
+    if zaiCfg.enable then
       let
         claudeExe = lib.getExe llmPkgsPinned.claude-code;
         commandName = zaiCfg.commandName;
         baseUrl = zaiCfg.baseUrl;
         model = zaiCfg.model;
         tokenEnvVar = zaiCfg.tokenEnvVar;
-    in [
+      in
+      [
         (pkgs.writeShellApplication {
           name = commandName;
           text = ''
@@ -38,20 +54,19 @@ let
     else
       [ ];
 
-in {
+in
+{
   options.rsydn.aiTools = {
     enable = mkEnableOption "AI CLI tools from llm-agents.nix";
 
     zai = mkOption {
       type = types.submodule {
         options = {
-          enable = mkEnableOption
+          enable = mkEnableOption "Expose the Z.AI Gateway wrapper command for Claude.";
-            "Expose the Z.AI Gateway wrapper command for Claude.";
           commandName = mkOption {
             type = types.str;
             default = "glm";
-            description =
+            description = "Name of the wrapper command that launches Claude via Z.AI.";
-              "Name of the wrapper command that launches Claude via Z.AI.";
           };
           baseUrl = mkOption {
             type = types.str;
@@ -66,8 +81,7 @@ in {
           tokenEnvVar = mkOption {
             type = types.str;
             default = "ZAI_API_KEY";
-            description =
+            description = "Environment variable that stores the Z.AI API token.";
-              "Environment variable that stores the Z.AI API token.";
           };
         };
       };
@@ -78,15 +92,13 @@ in {
         model = "glm-4.7";
         tokenEnvVar = "ZAI_API_KEY";
       };
-      description =
+      description = "Configuration for the Claude wrapper that targets the Z.AI gateway.";
-        "Configuration for the Claude wrapper that targets the Z.AI gateway.";
     };
 
     extraPackages = mkOption {
       type = types.listOf types.package;
       default = [ ];
-      description =
+      description = "Additional AI tooling packages to add alongside the defaults.";
-        "Additional AI tooling packages to add alongside the defaults.";
     };
   };
 
@@ -98,6 +110,8 @@ in {
       llmPkgs.ccstatusline # latest
       llmPkgs.ccusage # latest
       llmPkgs.codex
-    ] ++ zaiWrapperPackages ++ cfg.extraPackages;
+    ]
+    ++ zaiWrapperPackages
+    ++ cfg.extraPackages;
   };
 }

modules/home/devtools/default.nix

@@ -1,8 +1,14 @@
-{ config, lib, pkgs, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
 let
   inherit (lib) mkOption types mkIf;
   cfg = config.rsydn.devTools;
-in {
+in
+{
   options.rsydn.devTools = {
     enable = mkOption {
       type = types.bool;

modules/home/devtools/direnv.nix

@@ -2,13 +2,13 @@
 let
   inherit (lib) mkOption types mkIf;
   cfg = config.rsydn.direnv;
-in {
+in
+{
   options.rsydn.direnv = {
     enable = mkOption {
       type = types.bool;
       default = false;
-      description =
+      description = "Enable direnv with nix-direnv for automatic devshell activation.";
-        "Enable direnv with nix-direnv for automatic devshell activation.";
     };
     silent = mkOption {
       type = types.bool;

modules/home/devtools/languages.nix

@@ -1,12 +1,29 @@
-{ config, lib, pkgs, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
 let
-  inherit (lib) mkEnableOption mkOption mkIf types warn unique;
+  inherit (lib)
+    mkEnableOption
+    mkOption
+    mkIf
+    types
+    warn
+    unique
+    ;
   cfg = config.rsydn.languages;
 
   hasPkg = name: builtins.hasAttr name pkgs;
   getPkg = name: if hasPkg name then pkgs.${name} else null;
 
-  mkToolOption = { name, defaultPackage, description }:
+  mkToolOption =
+    {
+      name,
+      defaultPackage,
+      description,
+    }:
     mkOption {
       type = types.submodule {
         options = {
@@ -18,8 +35,7 @@ let
           package = mkOption {
             type = types.nullOr types.package;
             default = defaultPackage;
-            description =
+            description = "Package derivation to install for ${name}. Set to null to skip.";
-              "Package derivation to install for ${name}. Set to null to skip.";
           };
         };
       };
@@ -30,23 +46,25 @@ let
       description = description;
     };
 
-  mkToolPackages = specs:
+  mkToolPackages =
-    builtins.concatMap (tool:
+    specs:
-      let toolCfg = tool.cfg;
+    builtins.concatMap (
-      in if toolCfg.enable then
+      tool:
+      let
+        toolCfg = tool.cfg;
+      in
+      if toolCfg.enable then
         if toolCfg.package != null then
           [ toolCfg.package ]
         else
           warn "rsydn.languages.${tool.name}: package is null, skipping" [ ]
       else
-        [ ]) specs;
+        [ ]
+    ) specs;
 
   uvPackage = getPkg "uv";
   goPackage = getPkg "go";
-  nodePackage = if builtins.hasAttr "nodejs_20" pkgs then
+  nodePackage = if builtins.hasAttr "nodejs_20" pkgs then pkgs.nodejs_20 else getPkg "nodejs";
-    pkgs.nodejs_20
-  else
-    getPkg "nodejs";
   cargoPackage = getPkg "cargo";
   bunPackage = getPkg "bun";
 
@@ -80,7 +98,8 @@ let
 
   languagePackages = mkToolPackages toolSpecs;
 
-in {
+in
+{
   options.rsydn.languages = {
     enable = mkEnableOption "Language tooling packages for everyday workflows";
 

modules/home/devtools/try.nix

@@ -1,8 +1,20 @@
-{ config, lib, pkgs, try, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  try,
+  ...
+}:
 let
-  inherit (lib) mkEnableOption mkOption types mkIf;
+  inherit (lib)
+    mkEnableOption
+    mkOption
+    types
+    mkIf
+    ;
   cfg = config.rsydn.try;
-in {
+in
+{
   imports = [ try.homeModules.default ];
 
   options.rsydn.try = {

modules/home/programs/fastfetch/default.nix

@@ -1,4 +1,9 @@
-{ config, lib, pkgs, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
 
 {
   home.packages = [ pkgs.fastfetch ];
@@ -6,12 +11,13 @@
   # Copy the custom logo file
   xdg.configFile."fastfetch/oguri-logo.txt".source = ./oguri-logo.txt;
 
-  xdg.configFile."fastfetch/config.jsonc".text = let
+  xdg.configFile."fastfetch/config.jsonc".text =
+    let
       esc = builtins.fromJSON ''"\u001b"'';
       osIcon = if pkgs.stdenv.isDarwin then "" else "";
-  in builtins.toJSON {
+    in
-    "$schema" =
+    builtins.toJSON {
-      "https://github.com/fastfetch-cli/fastfetch/raw/dev/doc/json_schema.json";
+      "$schema" = "https://github.com/fastfetch-cli/fastfetch/raw/dev/doc/json_schema.json";
 
       logo = {
         type = "file";
@@ -26,7 +32,9 @@
 
       display = {
         separator = " → ";
-      key = { width = 16; };
+        key = {
+          width = 16;
+        };
       };
 
       modules = [
@@ -35,8 +43,7 @@
         # Hardware Section
         {
           type = "custom";
-        format =
+          format = "${esc}[32m── Hardware──────────────────────────────────────────${esc}[0m";
-          "${esc}[32m── Hardware──────────────────────────────────────────${esc}[0m";
         }
         {
           type = "host";
@@ -80,15 +87,13 @@
         # Software Section
         {
           type = "custom";
-        format =
+          format = "${esc}[34m── Software──────────────────────────────────────────${esc}[0m";
-          "${esc}[34m── Software──────────────────────────────────────────${esc}[0m";
         }
         {
           type = "command";
           key = "${osIcon} OS";
           keyColor = "blue";
-        text =
+          text = "if [ $(uname) = 'Darwin' ]; then ver=$(sw_vers -productVersion); major=$(echo $ver | cut -d. -f1); case $major in 15) name='Sequoia';; 14) name='Sonoma';; 13) name='Ventura';; 12) name='Monterey';; 11) name='Big Sur';; *) name=''';; esac; echo \"macOS $name $major\"; else echo \"$(cat /etc/os-release | grep PRETTY_NAME | cut -d'\\\"' -f2)\"; fi";
-          "if [ $(uname) = 'Darwin' ]; then ver=$(sw_vers -productVersion); major=$(echo $ver | cut -d. -f1); case $major in 15) name='Sequoia';; 14) name='Sonoma';; 13) name='Ventura';; 12) name='Monterey';; 11) name='Big Sur';; *) name=''';; esac; echo \"macOS $name $major\"; else echo \"$(cat /etc/os-release | grep PRETTY_NAME | cut -d'\\\"' -f2)\"; fi";
         }
         {
           type = "kernel";
@@ -130,16 +135,14 @@
         # Uptime / Age Section
         {
           type = "custom";
-        format =
+          format = "${esc}[35m── Uptime / Age─────────────────────────────────────${esc}[0m";
-          "${esc}[35m── Uptime / Age─────────────────────────────────────${esc}[0m";
         }
         {
           type = "command";
           key = "󱦟 OS Age";
           keyColor = "magenta";
           # macOS compatible stat command
-        text = ''
+          text = ''if [ $(uname) = 'Darwin' ]; then birth=$(stat -f %B /); else birth=$(stat -c %W /); fi; current=$(date +%s); days=$(( (current - birth) / 86400 )); echo "$days days"'';
-          if [ $(uname) = 'Darwin' ]; then birth=$(stat -f %B /); else birth=$(stat -c %W /); fi; current=$(date +%s); days=$(( (current - birth) / 86400 )); echo "$days days"'';
         }
         {
           type = "uptime";

modules/home/programs/helix.nix

@@ -1,4 +1,5 @@
-{ pkgs, lib, ... }: {
+{ pkgs, lib, ... }:
+{
   programs.helix = {
     enable = lib.mkDefault true;
     settings = {
@@ -18,10 +19,12 @@
         };
       };
     };
-    languages.language = [{
+    languages.language = [
+      {
         name = "nix";
         auto-format = true;
-      formatter.command = "${pkgs.nixfmt-classic}/bin/nixfmt";
+        formatter.command = "${pkgs.nixfmt}/bin/nixfmt";
-    }];
+      }
+    ];
   };
 }

modules/home/programs/neovim.nix

@@ -1,4 +1,5 @@
-{ pkgs, config, ... }: {
+{ pkgs, config, ... }:
+{
   programs.neovim = {
     enable = true;
     viAlias = true;
@@ -27,7 +28,7 @@
 
       # Formatters
       stylua # Lua
-      nixfmt-classic # Nix (matches your fmt command)
+      nixfmt # Nix
       ruff # Python (formatter + linter)
       prettierd # JS/TS/JSON/YAML/Markdown
       rustfmt # Rust
@@ -61,8 +62,7 @@
   };
 
   # Copy lazy-lock.json as writable (not symlinked to read-only Nix store)
-  home.activation.makeNvimLockWritable =
+  home.activation.makeNvimLockWritable = config.lib.dag.entryAfter [ "linkGeneration" ] ''
-    config.lib.dag.entryAfter [ "linkGeneration" ] ''
     lockFile="${config.xdg.configHome}/nvim/lazy-lock.json"
     sourceLock="${./nvim/lazy-lock.json}"
 

modules/home/secrets.nix

@@ -1,24 +1,43 @@
-{ config, lib, inputs, ... }:
+{
+  config,
+  lib,
+  inputs,
+  ...
+}:
 let
-  inherit (lib) mkEnableOption mkOption mkIf types;
+  inherit (lib)
+    mkEnableOption
+    mkOption
+    mkIf
+    types
+    ;
   cfg = config.rsydn.secrets;
 
-  sanitizeSecret = name: secret:
+  sanitizeSecret =
+    name: secret:
     let
       sopsFile = secret.sopsFile or cfg.defaultSopsFile;
-      extra =
+      extra = lib.filterAttrs (
-        lib.filterAttrs (k: _: !(builtins.elem k [ "path" "mode" "sopsFile" ]))
+        k: _:
-        secret;
+        !(builtins.elem k [
-    in {
+          "path"
+          "mode"
+          "sopsFile"
+        ])
+      ) secret;
+    in
+    {
       path = secret.path or "${config.xdg.configHome}/secrets/${name}";
       mode = secret.mode or "0400";
-    } // (lib.optionalAttrs (sopsFile != null) { inherit sopsFile; }) // extra;
+    }
-in {
+    // (lib.optionalAttrs (sopsFile != null) { inherit sopsFile; })
+    // extra;
+in
+{
   imports = [ inputs.sops-nix.homeManagerModules.sops ];
 
   options.rsydn.secrets = {
-    enable =
+    enable = mkEnableOption "sops-nix integration for managing decrypted secrets";
-      mkEnableOption "sops-nix integration for managing decrypted secrets";
 
     ageKeyFile = mkOption {
       type = types.str;
@@ -29,15 +48,13 @@ in {
     defaultSopsFile = mkOption {
       type = types.nullOr types.path;
       default = null;
-      description =
+      description = "Optional default SOPS file used when a secret definition omits `sopsFile`.";
-        "Optional default SOPS file used when a secret definition omits `sopsFile`.";
     };
 
     secrets = mkOption {
       type = types.attrsOf types.attrs;
       default = { };
-      description =
+      description = "Secret entries forwarded to `sops.secrets` with sensible defaults.";
-        "Secret entries forwarded to `sops.secrets` with sensible defaults.";
       example = lib.literalExpression ''
         {
           "api-key" = {
@@ -58,12 +75,12 @@ in {
       };
 
       secrets = lib.mapAttrs sanitizeSecret cfg.secrets;
-    } // (lib.optionalAttrs (cfg.defaultSopsFile != null) {
+    }
+    // (lib.optionalAttrs (cfg.defaultSopsFile != null) {
       defaultSopsFile = cfg.defaultSopsFile;
     });
 
-    home.activation.ensureSecretDir =
+    home.activation.ensureSecretDir = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
-      lib.hm.dag.entryAfter [ "writeBoundary" ] ''
       mkdir -p "${config.xdg.configHome}/secrets"
       chmod 700 "${config.xdg.configHome}/secrets"
     '';

modules/home/shell/fish.nix

@@ -1,4 +1,10 @@
-{ config, pkgs, lib, ... }: {
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+{
   programs.fish = {
     enable = true;
     interactiveShellInit = ''

modules/home/shell/nushell.nix

@@ -1,31 +1,40 @@
-{ config, pkgs, lib, ... }:
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
 let
   profileBin = "${config.home.profileDirectory}/bin";
   # System binaries path - same on both NixOS and Darwin
   systemBin = "/run/current-system/sw/bin";
   defaultBin = "/nix/var/nix/profiles/default/bin";
-  darwinHomebrewDir = if pkgs.stdenv.hostPlatform.isAarch64 then
+  darwinHomebrewDir = if pkgs.stdenv.hostPlatform.isAarch64 then "/opt/homebrew" else "/usr/local";
-    "/opt/homebrew"
-  else
-    "/usr/local";
   homebrewBin = "${darwinHomebrewDir}/bin";
   homebrewSbin = "${darwinHomebrewDir}/sbin";
-  homebrewPaths = if pkgs.stdenv.hostPlatform.isDarwin then
+  homebrewPaths =
-    lib.unique [ homebrewBin homebrewSbin ]
+    if pkgs.stdenv.hostPlatform.isDarwin then
+      lib.unique [
+        homebrewBin
+        homebrewSbin
+      ]
     else
       [ ];
   # Add common macOS system paths that may contain user-installed CLIs
-  macosSystemPaths = if pkgs.stdenv.hostPlatform.isDarwin then [
+  macosSystemPaths =
+    if pkgs.stdenv.hostPlatform.isDarwin then
+      [
         "/usr/local/bin"
         "/usr/bin"
         "/bin"
         "/usr/sbin"
         "/sbin"
-  ] else
+      ]
+    else
       [ ];
-  formatPathList = paths:
+  formatPathList = paths: lib.concatMapStrings (path: "      \"${path}\"\n") paths;
-    lib.concatMapStrings (path: "      \"${path}\"\n") paths;
+in
-in {
+{
   imports = [ ./starship ];
 
   programs.nushell.enable = lib.mkDefault true;
@@ -141,7 +150,13 @@ in {
         $env.XDG_CACHE_HOME = "${config.xdg.cacheHome}"
 
         let nix_paths = [
-    ${formatPathList [ profileBin systemBin defaultBin ]}    ]
+    ${
+      formatPathList [
+        profileBin
+        systemBin
+        defaultBin
+      ]
+    }    ]
 
         let homebrew_paths = [
     ${formatPathList homebrewPaths}    ]

modules/home/shell/starship/default.nix

@@ -1,4 +1,5 @@
-{ lib, ... }: {
+{ lib, ... }:
+{
   programs.starship = {
     enable = lib.mkDefault true;
     enableFishIntegration = true;

modules/home/shell/tmux.nix

@@ -1,4 +1,10 @@
-{ config, lib, pkgs, ... }: {
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+{
   programs.tmux = {
     enable = lib.mkDefault true;
     clock24 = true;
@@ -8,7 +14,7 @@
     prefix = "C-a";
     escapeTime = 0;
     aggressiveResize = true;
-    plugins = [{ plugin = pkgs.tmuxPlugins.gruvbox; }];
+    plugins = [ { plugin = pkgs.tmuxPlugins.gruvbox; } ];
     extraConfig = ''
       # Terminal configuration for proper colors and features
       set-option -g default-terminal "screen-256color"

modules/nixos/audio.nix

@@ -1,4 +1,5 @@
-{ lib, ... }: {
+{ lib, ... }:
+{
   # Modern audio stack - PipeWire replaces PulseAudio + JACK + ALSA
   services.pipewire = {
     enable = lib.mkDefault true;

modules/nixos/bluetooth.nix

@@ -1,4 +1,5 @@
-{ lib, ... }: {
+{ lib, ... }:
+{
   hardware.bluetooth = {
     enable = lib.mkDefault false; # Enable when needed
     powerOnBoot = lib.mkDefault true;

modules/nixos/containerization.nix

@@ -1,37 +1,51 @@
-{ config, lib, pkgs, user, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  user,
+  ...
+}:
 let
   inherit (lib)
-    mkEnableOption mkOption mkIf types mkMerge mkAfter optionals mkDefault;
+    mkEnableOption
+    mkOption
+    mkIf
+    types
+    mkMerge
+    mkAfter
+    optionals
+    mkDefault
+    ;
   cfg = config.rsydn.containerization;
-in {
+in
+{
   options.rsydn.containerization = {
     podman = {
       enable = mkOption {
         type = types.bool;
         default = true;
-        description =
+        description = "Enable Podman for rootless containers as the primary engine.";
-          "Enable Podman for rootless containers as the primary engine.";
       };
 
       dockerCompat = mkOption {
         type = types.bool;
         default = true;
-        description =
+        description = "Expose the Docker-compatible socket for CLI compatibility.";
-          "Expose the Docker-compatible socket for CLI compatibility.";
       };
 
       enableDnsnamePlugin = mkOption {
         type = types.bool;
         default = true;
-        description =
+        description = "Enable the dnsname CNI plugin so containers can resolve each other.";
-          "Enable the dnsname CNI plugin so containers can resolve each other.";
       };
 
       extraPackages = mkOption {
         type = types.listOf types.package;
-        default = with pkgs; [ podman-compose podman-tui ];
+        default = with pkgs; [
-        description =
+          podman-compose
-          "Additional Podman-related packages to install system-wide.";
+          podman-tui
+        ];
+        description = "Additional Podman-related packages to install system-wide.";
       };
     };
 
@@ -39,8 +53,7 @@ in {
       enable = mkOption {
         type = types.bool;
         default = false;
-        description =
+        description = "Enable the Docker daemon alongside Podman when explicitly requested.";
-          "Enable the Docker daemon alongside Podman when explicitly requested.";
       };
 
       autoPrune = mkOption {
@@ -49,18 +62,19 @@ in {
             enable = mkOption {
               type = types.bool;
               default = true;
-              description =
+              description = "Automatically prune unused Docker data on a schedule.";
-                "Automatically prune unused Docker data on a schedule.";
             };
             dates = mkOption {
               type = types.str;
               default = "weekly";
-              description =
+              description = "Systemd calendar expression for docker system prune.";
-                "Systemd calendar expression for docker system prune.";
             };
             flags = mkOption {
               type = types.listOf types.str;
-              default = [ "--all" "--volumes" ];
+              default = [
+                "--all"
+                "--volumes"
+              ];
               description = "Extra flags passed to docker system prune.";
             };
           };
@@ -71,11 +85,13 @@ in {
     };
 
     k3s = {
-      enable =
+      enable = mkEnableOption "Run a lightweight Kubernetes control plane with k3s.";
-        mkEnableOption "Run a lightweight Kubernetes control plane with k3s.";
 
       role = mkOption {
-        type = types.enum [ "server" "agent" ];
+        type = types.enum [
+          "server"
+          "agent"
+        ];
         default = "server";
         description = "Choose whether this node runs as a k3s server or agent.";
       };
@@ -99,14 +115,18 @@ in {
       environment.systemPackages = mkAfter cfg.podman.extraPackages;
 
       users.users.${user} = {
-        subUidRanges = mkDefault [{
+        subUidRanges = mkDefault [
+          {
             startUid = 100000;
             count = 65536;
-        }];
+          }
-        subGidRanges = mkDefault [{
+        ];
+        subGidRanges = mkDefault [
+          {
             startGid = 100000;
             count = 65536;
-        }];
+          }
+        ];
       };
     })
 
@@ -130,8 +150,7 @@ in {
         extraFlags = cfg.k3s.extraFlags;
       };
 
-      networking.firewall.allowedTCPPorts =
+      networking.firewall.allowedTCPPorts = mkAfter (optionals (cfg.k3s.role == "server") [ 6443 ]);
-        mkAfter (optionals (cfg.k3s.role == "server") [ 6443 ]);
     })
   ];
 }

modules/nixos/desktops/apps/browsers.nix

@@ -1,4 +1,5 @@
-{ pkgs, user, ... }: {
+{ pkgs, user, ... }:
+{
   # Browser configurations for desktop users
 
   home-manager.users.${user} = {

modules/nixos/desktops/apps/terminals.nix

@@ -1,4 +1,10 @@
-{ lib, pkgs, user, ... }: {
+{
+  lib,
+  pkgs,
+  user,
+  ...
+}:
+{
   # Terminal emulator configurations for desktop users
 
   home-manager.users.${user} = {

modules/nixos/desktops/base.nix

@@ -1,4 +1,5 @@
-{ lib, pkgs, ... }: {
+{ lib, pkgs, ... }:
+{
   # Shared desktop settings (imported by all DEs)
 
   # XDG portals for desktop integration

modules/nixos/desktops/gaming.nix

@@ -1,4 +1,5 @@
-{ pkgs, ... }: {
+{ pkgs, ... }:
+{
   # Gaming configuration module
   # Steam, Proton, Vulkan, Wine, and gaming optimizations
 
@@ -9,8 +10,7 @@
     dedicatedServer.openFirewall = true;
 
     # Enable Proton compatibility layer
-    extraCompatPackages = with pkgs;
+    extraCompatPackages = with pkgs; [
-      [
       proton-ge-bin # GloriousEggroll's Proton builds
     ];
   };
@@ -19,7 +19,9 @@
   programs.gamemode = {
     enable = true;
     settings = {
-      general = { renice = 10; };
+      general = {
+        renice = 10;
+      };
       custom = {
         start = "${pkgs.libnotify}/bin/notify-send 'GameMode started'";
         end = "${pkgs.libnotify}/bin/notify-send 'GameMode ended'";
@@ -72,5 +74,7 @@
   # ];
 
   # Increase file watchers for game modding tools
-  boot.kernel.sysctl = { "fs.inotify.max_user_watches" = 524288; };
+  boot.kernel.sysctl = {
+    "fs.inotify.max_user_watches" = 524288;
+  };
 }

modules/nixos/desktops/hardware-configuration.nix

@@ -2,15 +2,25 @@
 # Generated by running: nixos-generate-config --show-hardware-config
 # This file contains hardware-specific settings that should be adjusted for your actual hardware
 
-{ config, lib, modulesPath, ... }:
+{
+  config,
+  lib,
+  modulesPath,
+  ...
+}:
 
 {
   imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
 
   # Kernel modules needed during boot
   # Adjust based on your hardware (NVMe, SATA, USB, etc.)
-  boot.initrd.availableKernelModules =
+  boot.initrd.availableKernelModules = [
-    [ "nvme" "xhci_pci" "ahci" "usb_storage" "sd_mod" ];
+    "nvme"
+    "xhci_pci"
+    "ahci"
+    "usb_storage"
+    "sd_mod"
+  ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ "kvm-amd" ]; # Change to "kvm-intel" for Intel CPUs
 
@@ -24,7 +34,10 @@
   fileSystems."/boot" = {
     device = "/dev/disk/by-uuid/REPLACE-WITH-YOUR-BOOT-UUID";
     fsType = "vfat";
-    options = [ "fmask=0022" "dmask=0022" ];
+    options = [
+      "fmask=0022"
+      "dmask=0022"
+    ];
   };
 
   # Swap configuration (optional)
@@ -34,8 +47,7 @@
   # ];
 
   # CPU microcode updates
-  hardware.cpu.amd.updateMicrocode =
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
-    lib.mkDefault config.hardware.enableRedistributableFirmware;
   # For Intel CPUs, use this instead:
   # hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
 

modules/nixos/desktops/hyprland/default.nix

@@ -1,4 +1,10 @@
-{ pkgs, lib, user, ... }: {
+{
+  pkgs,
+  lib,
+  user,
+  ...
+}:
+{
   imports = [ ../base.nix ];
 
   # System-level: Enable Hyprland
@@ -55,13 +61,14 @@
           border_size = 2;
         };
 
-        decoration = { rounding = 8; };
+        decoration = {
+          rounding = 8;
+        };
       };
     };
 
     # User packages: Hyprland utilities
-    home.packages = with pkgs;
+    home.packages = with pkgs; [
-      [
       # Uncomment as needed:
       # wofi       # Launcher
       # waybar     # Status bar

modules/nixos/desktops/plasma.nix

@@ -1,4 +1,10 @@
-{ lib, pkgs, user, ... }: {
+{
+  lib,
+  pkgs,
+  user,
+  ...
+}:
+{
   imports = [ ./base.nix ];
 
   # System-level: KDE Plasma 6
@@ -11,8 +17,7 @@
   };
 
   # System packages: KDE applications
-  environment.systemPackages = with pkgs;
+  environment.systemPackages = with pkgs; [
-    [
     # KDE applications (uncomment as needed)
     # kdePackages.kate          # Text editor
     # kdePackages.dolphin       # File manager
@@ -34,8 +39,7 @@
     # };
 
     # User packages for KDE environment
-    home.packages = with pkgs;
+    home.packages = with pkgs; [
-      [
       # Add user-specific apps here
     ];
   };

modules/nixos/desktops/themes/catppuccin.nix

@@ -1,4 +1,10 @@
-{ lib, pkgs, user, ... }: {
+{
+  lib,
+  pkgs,
+  user,
+  ...
+}:
+{
   # Catppuccin theme configuration
   # Soothing pastel theme for both GTK and Qt applications
   # Works with KDE Plasma, Hyprland, and other desktop environments

modules/nixos/desktops/themes/default.nix

@@ -1,4 +1,10 @@
-{ lib, pkgs, user, ... }: {
+{
+  lib,
+  pkgs,
+  user,
+  ...
+}:
+{
   # Default theme configuration for desktop
   # Simple Adwaita-dark theme that works across all desktop environments
   # Switch to catppuccin.nix or create your own for custom themes

modules/nixos/fonts.nix

@@ -1,10 +1,17 @@
-{ lib, pkgs, ... }: {
+{ lib, pkgs, ... }:
+{
   fonts = {
     enableDefaultPackages = lib.mkDefault true;
 
     packages = with pkgs; [
       # Nerd Fonts for terminal icons
-      (nerdfonts.override { fonts = [ "FiraCode" "JetBrainsMono" "Iosevka" ]; })
+      (nerdfonts.override {
+        fonts = [
+          "FiraCode"
+          "JetBrainsMono"
+          "Iosevka"
+        ];
+      })
 
       # Core fonts
       noto-fonts
@@ -20,7 +27,10 @@
     fontconfig = {
       enable = lib.mkDefault true;
       defaultFonts = {
-        monospace = [ "JetBrains Mono" "FiraCode Nerd Font" ];
+        monospace = [
+          "JetBrains Mono"
+          "FiraCode Nerd Font"
+        ];
         sansSerif = [ "Noto Sans" ];
         serif = [ "Noto Serif" ];
         emoji = [ "Noto Color Emoji" ];

modules/nixos/graphics.nix

@@ -1,4 +1,5 @@
-{ lib, pkgs, ... }: {
+{ lib, pkgs, ... }:
+{
   # Hardware acceleration (OpenGL/Vulkan)
   hardware.graphics = {
     enable = lib.mkDefault true;

modules/nixos/home/default.nix

@@ -1,4 +1,10 @@
-{ config, pkgs, lib, ... }: {
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+{
   # Minimal CLI-only Home Manager configuration
   # Used for servers, VMs, and headless systems
   # Desktop configs are handled directly in nixos/desktops/* modules

modules/nixos/network.nix

@@ -1,4 +1,5 @@
-{ lib, ... }: {
+{ lib, ... }:
+{
   networking.useDHCP = lib.mkDefault true;
   networking.networkmanager.enable = lib.mkDefault true;
 }

modules/nixos/ssh.nix

@@ -1,4 +1,5 @@
-{ lib, ... }: {
+{ lib, ... }:
+{
   services.openssh = {
     enable = lib.mkDefault true;
     openFirewall = lib.mkDefault true;

modules/nixos/system.nix

@@ -1,10 +1,22 @@
-{ lib, user, ... }: {
+{ lib, user, ... }:
-  imports = [ ./users.nix ./network.nix ./ssh.nix ./containerization.nix ];
+{
+  imports = [
+    ./users.nix
+    ./network.nix
+    ./ssh.nix
+    ./containerization.nix
+  ];
 
   nix = {
     settings.auto-optimise-store = lib.mkDefault true;
-    settings.experimental-features = lib.mkDefault [ "nix-command" "flakes" ];
+    settings.experimental-features = lib.mkDefault [
-    settings.trusted-users = lib.mkDefault [ "root" user ];
+      "nix-command"
+      "flakes"
+    ];
+    settings.trusted-users = lib.mkDefault [
+      "root"
+      user
+    ];
     optimise.automatic = lib.mkDefault true;
     gc = {
       automatic = lib.mkDefault true;

modules/nixos/users.nix

@@ -1,7 +1,17 @@
-{ lib, pkgs, user, ... }: {
+{
+  lib,
+  pkgs,
+  user,
+  ...
+}:
+{
   users.users.${user} = {
     isNormalUser = lib.mkDefault true;
-    extraGroups = lib.mkDefault [ "wheel" "networkmanager" "docker" ];
+    extraGroups = lib.mkDefault [
+      "wheel"
+      "networkmanager"
+      "docker"
+    ];
     home = lib.mkDefault "/home/${user}";
     shell = pkgs.fish;
   };

modules/nixos/virtualization.nix

@@ -1,4 +1,5 @@
-{ lib, pkgs, ... }: {
+{ lib, pkgs, ... }:
+{
   # QEMU guest agent provides graceful shutdowns and metadata exchange.
   # Disabled by default - enable in host overlay if needed.
   services.qemuGuest.enable = lib.mkDefault false;
@@ -18,8 +19,11 @@
     "virtio_mmio"
   ];
 
-  boot.kernelModules =
+  boot.kernelModules = lib.mkDefault [
-    lib.mkDefault [ "virtio_balloon" "virtio_console" "virtio_rng" ];
+    "virtio_balloon"
+    "virtio_console"
+    "virtio_rng"
+  ];
 
   # Provide udev rules to improve virtio device behaviour.
   services.udev.extraRules = lib.mkDefault ''

packages/default.nix

@@ -1,6 +1,13 @@
-{ pkgs, lib, llm-agents }:
+{
+  pkgs,
+  lib,
+  llm-agents,
+}:
 
 let
   system = pkgs.stdenv.hostPlatform.system;
   llmPkgs = llm-agents.packages.${system};
-in { opencode = llmPkgs.opencode; }
+in
+{
+  opencode = llmPkgs.opencode;
+}

shells/README.md

@@ -15,7 +15,7 @@ nix develop        # or: nix develop .#default
 
 **Includes:**
 - Git
-- nixfmt-classic
+- nixfmt
 - uv (for `uvx` commands)
 
 **MCP helper:**

shells/ai-agent.nix

@@ -1,4 +1,9 @@
-{ pkgs, lib, customPkgs, ... }:
+{
+  pkgs,
+  lib,
+  customPkgs,
+  ...
+}:
 
 pkgs.mkShell {
   name = "ai-agent";

shells/ai-notebook.nix

@@ -1,7 +1,13 @@
-{ pkgs, lib, python ? pkgs.python312, ... }:
+{
+  pkgs,
+  lib,
+  python ? pkgs.python312,
+  ...
+}:
 
 let
-  pythonWithAI = python.withPackages (ps:
+  pythonWithAI = python.withPackages (
+    ps:
     let
       basePackages = with ps; [
         accelerate
@@ -25,12 +31,28 @@ let
         tokenizers
         transformers
       ];
-      linuxOnlyPackages = lib.optionals pkgs.stdenv.isLinux
+      linuxOnlyPackages = lib.optionals pkgs.stdenv.isLinux (
-        (with ps; [ sentencepiece torch torchaudio torchvision ]);
+        with ps;
-    in basePackages ++ linuxOnlyPackages);
+        [
-in pkgs.mkShell {
+          sentencepiece
+          torch
+          torchaudio
+          torchvision
+        ]
+      );
+    in
+    basePackages ++ linuxOnlyPackages
+  );
+in
+pkgs.mkShell {
   name = "ai-notebook";
-  packages = with pkgs; [ pythonWithAI uv git-lfs ruff pyright ];
+  packages = with pkgs; [
+    pythonWithAI
+    uv
+    git-lfs
+    ruff
+    pyright
+  ];
 
   shellHook = ''
     export UV_PYTHON="${pythonWithAI}/bin/python3"

shells/default.nix

@@ -8,7 +8,8 @@ let
   '';
 
   # Generate MCP configs for GUI applications
-  mcpConfigForGUI = pkgs.writeText "mcp_settings.json" (builtins.toJSON {
+  mcpConfigForGUI = pkgs.writeText "mcp_settings.json" (
+    builtins.toJSON {
       mcpServers = {
         nixos = {
           type = "stdio";
@@ -16,7 +17,8 @@ let
           args = [ ];
         };
       };
-  });
+    }
+  );
 
   # Script to install MCP configs for Claude Code and Codex
   installMcpConfigs = pkgs.writeShellScriptBin "install-mcp-configs" ''
@@ -83,12 +85,13 @@ let
     "$out_link/bin/nvim" "$@"
   '';
 
-in pkgs.mkShell {
+in
+pkgs.mkShell {
   name = "default";
   packages = with pkgs; [
     git
     nix
-    nixfmt-classic
+    nixfmt
     uv
     python3
     mcpNixosWrapper

shells/effect-ts.nix

@@ -93,7 +93,8 @@ let
         echo "  bun es list           - Browse Effect patterns"
   '';
 
-in pkgs.mkShell {
+in
+pkgs.mkShell {
   name = "effect-ts";
   packages = with pkgs; [
     bun

shells/go.nix

@@ -2,7 +2,13 @@
 
 pkgs.mkShell {
   name = "go";
-  packages = with pkgs; [ go gopls golangci-lint delve git ];
+  packages = with pkgs; [
+    go
+    gopls
+    golangci-lint
+    delve
+    git
+  ];
   shellHook = ''
     mkdir -p "$PWD/.cache/go" "$PWD/.cache/gomod"
     export GOPATH="$PWD/.cache/go"

shells/jupyter-notebook.nix

@@ -1,9 +1,13 @@
-{ pkgs, python ? pkgs.python312, ... }:
+{
+  pkgs,
+  python ? pkgs.python312,
+  ...
+}:
 
 let
   # Python environment with notebook tooling and core data-science libs
-  pythonWithNotebook = python.withPackages (ps:
+  pythonWithNotebook = python.withPackages (
-    with ps; [
+    ps: with ps; [
       altair
       ipykernel
       jupyterlab
@@ -15,10 +19,17 @@ let
       scipy
       scikit-learn
       seaborn
-    ]);
+    ]
-in pkgs.mkShell {
+  );
+in
+pkgs.mkShell {
   name = "jupyter-notebook";
-  packages = [ pythonWithNotebook pkgs.ruff pkgs.pyright pkgs.git ];
+  packages = [
+    pythonWithNotebook
+    pkgs.ruff
+    pkgs.pyright
+    pkgs.git
+  ];
   shellHook = ''
     export PYTHONNOUSERSITE=1
     export JUPYTER_CONFIG_DIR="''${XDG_CONFIG_HOME:-$HOME/.config}/jupyter"

shells/python-uv.nix

@@ -1,8 +1,17 @@
-{ pkgs, python ? pkgs.python312, ... }:
+{
+  pkgs,
+  python ? pkgs.python312,
+  ...
+}:
 
 pkgs.mkShell {
   name = "python-uv";
-  packages = [ python pkgs.uv pkgs.ruff pkgs.pyright ];
+  packages = [
+    python
+    pkgs.uv
+    pkgs.ruff
+    pkgs.pyright
+  ];
   shellHook = ''
     export UV_PYTHON="${python}/bin/python3"
     export UV_LINK_MODE=copy

shells/rust.nix

@@ -2,7 +2,13 @@
 
 pkgs.mkShell {
   name = "rust";
-  packages = with pkgs; [ cargo rustc rust-analyzer rustfmt clippy ];
+  packages = with pkgs; [
+    cargo
+    rustc
+    rust-analyzer
+    rustfmt
+    clippy
+  ];
   shellHook = ''
     mkdir -p "$PWD/.cache/cargo"
     export CARGO_HOME="$PWD/.cache/cargo"