refactoring

configuration.nix

@@ -1,35 +1,41 @@
-#configuration.nix
+# configuration.nix
-{ config, pkgs, inputs, ... }:
+# Main NixOS configuration - imports modular components
+{ config, pkgs, inputs, lib, ... }:
 
 {
-  imports =
+  imports = [
-    [ # Include the results of the hardware scan.
+    # Hardware
-      ./hardware-configuration.nix
+    ./hardware-configuration.nix
-    ];
 
-  # Bootloader.
+    # Modular configuration
+    ./modules/desktop.nix     # Portal, polkit, launcher, lock, wallpaper
+    ./modules/gpu-amd.nix     # AMD graphics, Vulkan, VA-API
+    ./modules/audio.nix       # Bluetooth, audio controls
+    ./modules/gaming.nix      # Steam, Gamemode, Lutris, etc.
+    ./modules/apps.nix        # User applications
+    ./modules/dev.nix         # Docker, dev tools
+    ./modules/theming.nix     # Fonts, themes, cursors
+  ];
+
+  # ═══════════════════════════════════════════════════════════════
+  # BOOT
+  # ═══════════════════════════════════════════════════════════════
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
-
-  # Use latest kernel.
   boot.kernelPackages = pkgs.linuxPackages_latest;
 
-  networking.hostName = "atlas"; # Define your hostname.
+  # ═══════════════════════════════════════════════════════════════
-  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+  # NETWORKING
-
+  # ═══════════════════════════════════════════════════════════════
-  # Configure network proxy if necessary
+  networking.hostName = "atlas";
-  # networking.proxy.default = "http://user:password@proxy:port/";
-  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
-
-  # Enable networking
   networking.networkmanager.enable = true;
 
-  # Set your time zone.
+  # ═══════════════════════════════════════════════════════════════
+  # LOCALIZATION
+  # ═══════════════════════════════════════════════════════════════
   time.timeZone = "Europe/Berlin";
 
-  # Select internationalisation properties.
   i18n.defaultLocale = "en_US.UTF-8";
-
   i18n.extraLocaleSettings = {
     LC_ADDRESS = "de_DE.UTF-8";
     LC_IDENTIFICATION = "de_DE.UTF-8";
@@ -42,30 +48,23 @@
     LC_TIME = "de_DE.UTF-8";
   };
 
-  # Enable the X11 windowing system (needed for some apps and Ly X11 support).
+  console.keyMap = "de-latin1-nodeadkeys";
-  services.xserver.enable = true;
 
-  # Use Ly as the display manager.
+  # ═══════════════════════════════════════════════════════════════
+  # DISPLAY & INPUT
+  # ═══════════════════════════════════════════════════════════════
+  services.xserver.enable = true;
   services.displayManager.ly.enable = true;
   services.displayManager.defaultSession = "niri";
 
-  # Configure keymap in X11
   services.xserver.xkb = {
     layout = "de";
     variant = "nodeadkeys";
   };
 
-  # Configure console keymap
+  # ═══════════════════════════════════════════════════════════════
-  console.keyMap = "de-latin1-nodeadkeys";
+  # AUDIO (PipeWire)
-
+  # ═══════════════════════════════════════════════════════════════
-  # Enable CUPS to print documents.
-  services.printing.enable = true;
-
-  # Enable Bluetooth
-  hardware.bluetooth.enable = true;
-  hardware.bluetooth.powerOnBoot = true;
-
-  # Enable sound with pipewire.
   services.pulseaudio.enable = false;
   security.rtkit.enable = true;
   services.pipewire = {
@@ -73,84 +72,112 @@
     alsa.enable = true;
     alsa.support32Bit = true;
     pulse.enable = true;
-    # If you want to use JACK applications, uncomment this
+    jack.enable = true;  # For pro audio apps
-    #jack.enable = true;
-
-    # use the example session manager (no others are packaged yet so this is enabled by default,
-    # no need to redefine it in your config for now)
-    #media-session.enable = true;
   };
 
-  # Enable touchpad support (enabled default in most desktopManager).
+  # ═══════════════════════════════════════════════════════════════
-  # services.xserver.libinput.enable = true;
+  # BLUETOOTH
+  # ═══════════════════════════════════════════════════════════════
+  hardware.bluetooth.enable = true;
+  hardware.bluetooth.powerOnBoot = true;
 
-  # Define a user account. Don't forget to set a password with ‘passwd’.
+  # ═══════════════════════════════════════════════════════════════
+  # PRINTING
+  # ═══════════════════════════════════════════════════════════════
+  services.printing.enable = true;
+
+  # ═══════════════════════════════════════════════════════════════
+  # USER
+  # ═══════════════════════════════════════════════════════════════
   users.users.pinj = {
     isNormalUser = true;
     description = "Melvin Ragusa";
-    extraGroups = [ "networkmanager" "wheel" ];
+    extraGroups = [
-    packages = with pkgs; [
+      "wheel"           # Sudo access
-    #  thunderbird
+      "networkmanager"  # Network configuration
+      # Additional groups are added by modules:
+      # - docker (dev.nix)
+      # - gamemode (gaming.nix)
+      # - corectrl (gpu-amd.nix)
     ];
+    shell = pkgs.zsh;
   };
 
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  # ═══════════════════════════════════════════════════════════════
-
+  # PROGRAMS
+  # ═══════════════════════════════════════════════════════════════
+  programs.zsh.enable = true;
   programs.yazi.enable = true;
   programs.firefox.enable = true;
   programs.niri.enable = true;
-  programs.zsh.enable = true;
-  users.users.pinj.shell = pkgs.zsh;
 
-  # Allow unfree packages
+  # ═══════════════════════════════════════════════════════════════
+  # NIX SETTINGS
+  # ═══════════════════════════════════════════════════════════════
+  nix.settings = {
+    experimental-features = [ "nix-command" "flakes" ];
+
+    # Optimize storage
+    auto-optimise-store = true;
+
+    # Trust users for substituters
+    trusted-users = [ "root" "@wheel" ];
+  };
+
+  # Garbage collection
+  nix.gc = {
+    automatic = true;
+    dates = "weekly";
+    options = "--delete-older-than 14d";
+  };
+
   nixpkgs.config.allowUnfree = true;
 
-  # List packages installed in system profile. To search, run:
+  # ═══════════════════════════════════════════════════════════════
-  # $ nix search wget
+  # SYSTEM PACKAGES (Base essentials)
+  # ═══════════════════════════════════════════════════════════════
   environment.systemPackages = with pkgs; [
+    # Core utilities
     fastfetch
-    nil
     micro
+    wget
+    curl
+
+    # Nix tools
+    nil               # Nix LSP
+
+    # Wayland
     xwayland-satellite
     grim
     slurp
-    wl-clipboard
+
-    git
+    # File management
-    gh
     nautilus
+
+    # Editors
     zed-editor
+
+    # Flake inputs
     inputs.noctalia.packages.${pkgs.system}.default
     inputs.zen-browser.packages.${pkgs.system}.default
     inputs.ghostty.packages.${pkgs.system}.default
     inputs.opencode.packages.${pkgs.system}.default
+
+    # AI coding
     claude-code
+
+    # Package managers
     pnpm
   ];
 
-  # Fonts
+  # ═══════════════════════════════════════════════════════════════
-  fonts.packages = with pkgs; [
+  # SERVICES
-    jetbrains-mono
+  # ═══════════════════════════════════════════════════════════════
-    nerd-fonts.jetbrains-mono
-  ];
-
-  fonts.fontconfig.enable = true;
-
-  # List services that you want to enable:
   services.openssh.enable = true;
   services.tailscale.enable = true;
 
-  # Open ports in the firewall.
+  # ═══════════════════════════════════════════════════════════════
-  # networking.firewall.allowedTCPPorts = [ ... ];
+  # SYSTEM
-  # networking.firewall.allowedUDPPorts = [ ... ];
+  # ═══════════════════════════════════════════════════════════════
-  # Or disable the firewall altogether.
-  # networking.firewall.enable = false;
-
-  # This value determines the NixOS release from which the default
-  # settings for stateful data, like file locations and database versions
-  # on your system were taken. It‘s perfectly fine and recommended to leave
-  # this value at the release version of the first install of this system.
-  # Before changing this value read the documentation for this option
-  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
   system.stateVersion = "25.11";
-
 }

flake.nix

@@ -28,6 +28,23 @@
     ghostty = {
       url = "github:ghostty-org/ghostty";
     };
+
+    vicinae = {
+      url = "github:vicinaehq/vicinae";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  # Binary caches for faster builds
+  nixConfig = {
+    extra-substituters = [
+      "https://vicinae.cachix.org"
+      "https://nix-community.cachix.org"
+    ];
+    extra-trusted-public-keys = [
+      "vicinae.cachix.org-1:1kDrfienkGHPYbkpNj1mWTr7Fm1+zcenzgTizIcI3oc="
+      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+    ];
   };
 
   outputs = inputs@{ self, nixpkgs, ... }:

modules/apps.nix

@@ -0,0 +1,78 @@
+# modules/apps.nix
+# User applications: media, productivity, communication, system utilities
+{ config, pkgs, lib, ... }:
+
+{
+  environment.systemPackages = with pkgs; [
+    # ─────────────────────────────────────────────────────────────
+    # Media Viewers
+    # ─────────────────────────────────────────────────────────────
+    loupe               # GNOME image viewer
+    evince              # PDF/document viewer
+    celluloid           # MPV frontend (GTK video player)
+    mpv                 # Powerful CLI video player
+
+    # ─────────────────────────────────────────────────────────────
+    # Music
+    # ─────────────────────────────────────────────────────────────
+    amberol             # Simple music player for local files
+    # Feishin available via Flatpak for Navidrome/Jellyfin
+
+    # ─────────────────────────────────────────────────────────────
+    # Communication
+    # ─────────────────────────────────────────────────────────────
+    vesktop             # Discord client (Wayland-native, with Vencord)
+    thunderbird         # Email client
+
+    # ─────────────────────────────────────────────────────────────
+    # Office & Productivity
+    # ─────────────────────────────────────────────────────────────
+    libreoffice-fresh   # Office suite (latest)
+    obsidian            # Note-taking with Markdown
+
+    # ─────────────────────────────────────────────────────────────
+    # System Utilities
+    # ─────────────────────────────────────────────────────────────
+    btop                # Modern system monitor (terminal)
+    mission-center      # GNOME system monitor (GUI, like Windows Task Manager)
+    
+    # File management
+    file-roller         # Archive manager (GUI)
+    gnome-disk-utility  # Disk management
+
+    # Archive tools (for file-roller and CLI)
+    unzip
+    zip
+    p7zip
+    unrar
+
+    # ─────────────────────────────────────────────────────────────
+    # Screenshots
+    # ─────────────────────────────────────────────────────────────
+    swappy              # Screenshot annotation tool
+    # grim + slurp already in your base config
+
+    # ─────────────────────────────────────────────────────────────
+    # Security & Passwords
+    # ─────────────────────────────────────────────────────────────
+    bitwarden-desktop   # Password manager
+    seahorse            # GNOME Keyring GUI
+
+    # ─────────────────────────────────────────────────────────────
+    # Utilities
+    # ─────────────────────────────────────────────────────────────
+    gnome-calculator    # Calculator
+    gnome-clocks        # World clocks, alarms, timers
+    baobab              # Disk usage analyzer
+  ];
+
+  # GNOME Keyring for secrets storage
+  services.gnome.gnome-keyring.enable = true;
+
+  # Enable Flatpak for additional apps (Feishin, etc.)
+  services.flatpak.enable = true;
+
+  # Add Flathub repository automatically on activation
+  # Run manually after first boot: flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
+  # Then install Feishin: flatpak install flathub io.github.feishin.feishin
+}

modules/audio.nix

@@ -0,0 +1,43 @@
+# modules/audio.nix
+# Audio and Bluetooth configuration: Blueman GUI, volume control, media keys
+{ config, pkgs, lib, ... }:
+
+{
+  # Bluetooth GUI management
+  services.blueman.enable = true;
+
+  # Audio packages
+  environment.systemPackages = with pkgs; [
+    # PipeWire volume control
+    pwvucontrol         # Modern PipeWire volume control (Qt)
+    pavucontrol         # Classic PulseAudio volume control (GTK) - as backup
+    helvum              # PipeWire patchbay for routing audio
+
+    # Media player control
+    playerctl           # Control media players via D-Bus (for media keys)
+
+    # Audio tools
+    easyeffects         # Audio effects and equalizer for PipeWire
+    
+    # Bluetooth audio codecs are handled by PipeWire automatically
+  ];
+
+  # Ensure PipeWire has good Bluetooth codec support
+  # This is already configured in your main config, but we ensure AAC/LDAC support
+  services.pipewire.wireplumber.extraConfig = {
+    "10-bluez" = {
+      "monitor.bluez.properties" = {
+        # Enable all Bluetooth codecs
+        "bluez5.enable-sbc-xq" = true;
+        "bluez5.enable-msbc" = true;
+        "bluez5.enable-hw-volume" = true;
+
+        # Bluetooth headset roles
+        "bluez5.roles" = [ "a2dp_sink" "a2dp_source" "bap_sink" "bap_source" "hsp_hs" "hsp_ag" "hfp_hf" "hfp_ag" ];
+
+        # Codec preference order (highest quality first)
+        "bluez5.codecs" = [ "ldac" "aac" "aptx_hd" "aptx" "sbc_xq" "sbc" ];
+      };
+    };
+  };
+}

modules/desktop.nix

@@ -0,0 +1,119 @@
+# modules/desktop.nix
+# Core desktop infrastructure: portals, polkit, launcher, screen lock, wallpaper, idle
+{ config, pkgs, inputs, lib, ... }:
+
+{
+  # XDG Portal - Required for screen sharing, file pickers, etc.
+  xdg.portal = {
+    enable = true;
+    extraPortals = [ pkgs.xdg-desktop-portal-gtk ];
+    config.common.default = "*";
+  };
+
+  # Polkit - GUI privilege escalation
+  security.polkit.enable = true;
+
+  # Polkit authentication agent (runs on login)
+  systemd.user.services.polkit-gnome-agent = {
+    description = "Polkit GNOME Authentication Agent";
+    wantedBy = [ "graphical-session.target" ];
+    wants = [ "graphical-session.target" ];
+    after = [ "graphical-session.target" ];
+    serviceConfig = {
+      Type = "simple";
+      ExecStart = "${pkgs.polkit_gnome}/libexec/polkit-gnome-authentication-agent-1";
+      Restart = "on-failure";
+      RestartSec = 1;
+      TimeoutStopSec = 10;
+    };
+  };
+
+  # Screen locker service (swayidle triggers this)
+  systemd.user.services.swaylock = {
+    description = "Screen Locker";
+    serviceConfig = {
+      Type = "forking";
+      ExecStart = "${pkgs.swaylock-effects}/bin/swaylock -f";
+    };
+  };
+
+  # Idle daemon - lock screen and turn off display
+  systemd.user.services.swayidle = {
+    description = "Idle Manager";
+    wantedBy = [ "graphical-session.target" ];
+    wants = [ "graphical-session.target" ];
+    after = [ "graphical-session.target" ];
+    serviceConfig = {
+      Type = "simple";
+      ExecStart = ''
+        ${pkgs.swayidle}/bin/swayidle -w \
+          timeout 300 'systemctl --user start swaylock' \
+          timeout 600 'niri msg action power-off-monitors' \
+          before-sleep 'systemctl --user start swaylock'
+      '';
+      Restart = "on-failure";
+      RestartSec = 1;
+    };
+  };
+
+  # Wallpaper service
+  systemd.user.services.swaybg = {
+    description = "Wallpaper Daemon";
+    wantedBy = [ "graphical-session.target" ];
+    wants = [ "graphical-session.target" ];
+    after = [ "graphical-session.target" ];
+    serviceConfig = {
+      Type = "simple";
+      # Default to a solid color - change path to your wallpaper
+      ExecStart = "${pkgs.swaybg}/bin/swaybg -c '#1e1e2e'";
+      Restart = "on-failure";
+    };
+  };
+
+  # Desktop packages
+  environment.systemPackages = with pkgs; [
+    # Vicinae launcher
+    inputs.vicinae.packages.${pkgs.system}.default
+
+    # Screen lock & idle
+    swaylock-effects
+    swayidle
+
+    # Wallpaper
+    swaybg
+
+    # Polkit agent
+    polkit_gnome
+
+    # Portal helpers
+    xdg-utils
+    xdg-user-dirs
+
+    # Wayland utilities
+    wl-clipboard
+    wtype            # Wayland keyboard automation
+    wlr-randr        # Display configuration
+    wayland-utils    # Debug utilities
+  ];
+
+  # Environment variables for Wayland compatibility
+  environment.sessionVariables = {
+    # Wayland defaults
+    NIXOS_OZONE_WL = "1";           # Electron apps use Wayland
+    MOZ_ENABLE_WAYLAND = "1";       # Firefox Wayland
+    QT_QPA_PLATFORM = "wayland";    # Qt apps use Wayland
+    SDL_VIDEODRIVER = "wayland";    # SDL games use Wayland
+    _JAVA_AWT_WM_NONREPARENTING = "1"; # Java apps fix
+
+    # XDG
+    XDG_SESSION_TYPE = "wayland";
+    XDG_CURRENT_DESKTOP = "niri";
+  };
+
+  # Enable dconf for GTK settings
+  programs.dconf.enable = true;
+
+  # GNOME services for better desktop integration
+  services.gvfs.enable = true;        # Virtual filesystem (trash, MTP, SMB)
+  services.udisks2.enable = true;     # Disk mounting
+}

modules/dev.nix

@@ -0,0 +1,111 @@
+# modules/dev.nix
+# Development tools: Docker, Node.js, direnv, build tools
+{ config, pkgs, lib, ... }:
+
+{
+  # Docker
+  virtualisation.docker = {
+    enable = true;
+    
+    # Recommended settings
+    autoPrune = {
+      enable = true;
+      dates = "weekly";
+      flags = [ "--all" ];
+    };
+  };
+
+  # Add user to docker group
+  users.users.pinj.extraGroups = [ "docker" ];
+
+  # Direnv for per-project environments
+  programs.direnv = {
+    enable = true;
+    nix-direnv.enable = true;  # Faster direnv for Nix
+  };
+
+  # Development packages
+  environment.systemPackages = with pkgs; [
+    # ─────────────────────────────────────────────────────────────
+    # Containers
+    # ─────────────────────────────────────────────────────────────
+    docker-compose      # Docker Compose v2
+    lazydocker          # Terminal UI for Docker
+
+    # ─────────────────────────────────────────────────────────────
+    # Languages & Runtimes
+    # ─────────────────────────────────────────────────────────────
+    nodejs_22           # Node.js LTS (for Vicinae extensions, etc.)
+    bun                 # Fast JavaScript runtime/bundler
+    python3             # Python 3
+    rustup              # Rust toolchain manager
+
+    # ─────────────────────────────────────────────────────────────
+    # Build Tools
+    # ─────────────────────────────────────────────────────────────
+    gcc
+    gnumake
+    cmake
+    pkg-config
+    
+    # ─────────────────────────────────────────────────────────────
+    # Version Control
+    # ─────────────────────────────────────────────────────────────
+    git
+    gh                  # GitHub CLI
+    lazygit             # Terminal UI for Git
+    delta               # Better git diff
+
+    # ─────────────────────────────────────────────────────────────
+    # Editors & LSP
+    # ─────────────────────────────────────────────────────────────
+    # nil already in base config (Nix LSP)
+    nixfmt-rfc-style    # Nix formatter
+
+    # ─────────────────────────────────────────────────────────────
+    # CLI Utilities
+    # ─────────────────────────────────────────────────────────────
+    jq                  # JSON processor
+    yq                  # YAML processor
+    ripgrep             # Fast grep
+    fd                  # Fast find
+    fzf                 # Fuzzy finder
+    eza                 # Modern ls
+    bat                 # Cat with syntax highlighting
+    httpie              # Better curl
+    curlie              # Curl wrapper with httpie-like syntax
+
+    # ─────────────────────────────────────────────────────────────
+    # Database Tools
+    # ─────────────────────────────────────────────────────────────
+    dbeaver-bin         # Universal database tool (GUI)
+  ];
+
+  # Better shell experience for development
+  programs.zsh = {
+    # Already enabled in base config
+    autosuggestions.enable = true;
+    syntaxHighlighting.enable = true;
+
+    shellAliases = {
+      ll = "eza -la --icons --git";
+      ls = "eza --icons";
+      cat = "bat";
+      find = "fd";
+      grep = "rg";
+      
+      # Docker shortcuts
+      dc = "docker-compose";
+      dps = "docker ps";
+      
+      # Git shortcuts
+      gs = "git status";
+      gd = "git diff";
+      gl = "git log --oneline -20";
+      
+      # NixOS shortcuts
+      rebuild = "sudo nixos-rebuild switch --flake .";
+      update = "nix flake update";
+    };
+  };
+}

modules/gaming.nix

@@ -0,0 +1,85 @@
+# modules/gaming.nix
+# Full gaming setup: Steam, Gamemode, Lutris, Heroic, MangoHud, Wine, Proton
+{ config, pkgs, lib, ... }:
+
+{
+  # Steam
+  programs.steam = {
+    enable = true;
+    remotePlay.openFirewall = true;       # Steam Remote Play
+    dedicatedServer.openFirewall = true;  # Dedicated servers
+    localNetworkGameTransfers.openFirewall = true;  # LAN game transfers
+
+    # Extra compatibility packages for Proton
+    extraCompatPackages = with pkgs; [
+      proton-ge-bin   # GloriousEggroll's Proton fork - better compatibility
+    ];
+  };
+
+  # Gamemode - Optimize system for gaming
+  programs.gamemode = {
+    enable = true;
+    enableRenice = true;  # Allow renice for priority boost
+    settings = {
+      general = {
+        renice = 10;
+        softrealtime = "auto";
+        inhibit_screensaver = 1;
+      };
+      gpu = {
+        apply_gpu_optimisations = "accept-responsibility";
+        gpu_device = 0;
+        amd_performance_level = "high";
+      };
+    };
+  };
+
+  # Steam hardware support (controllers, VR, etc.)
+  hardware.steam-hardware.enable = true;
+
+  # Gaming packages
+  environment.systemPackages = with pkgs; [
+    # Game launchers
+    lutris              # Multi-platform game launcher
+    heroic              # Epic Games & GOG launcher
+
+    # Proton management
+    protonup-qt         # GUI to manage Proton-GE versions
+
+    # Performance overlay
+    mangohud            # FPS counter, GPU/CPU stats overlay
+    goverlay            # GUI to configure MangoHud
+
+    # Wine for non-Steam games
+    wineWowPackages.stagingFull  # Latest Wine with all features
+    winetricks                    # Wine helper scripts
+    protontricks                  # Proton helper scripts (like winetricks for Proton)
+
+    # Misc gaming utilities
+    gamemode            # CLI tool to trigger gamemode
+    gamescope           # Micro-compositor for games (fixes some issues)
+  ];
+
+  # Allow MangoHud to work properly
+  environment.variables = {
+    MANGOHUD = "1";  # Enable by default (can be toggled per-game)
+  };
+
+  # Gaming-related kernel tweaks
+  boot.kernel.sysctl = {
+    # Increase file watchers for large games
+    "fs.inotify.max_user_watches" = 524288;
+
+    # Better memory management for gaming
+    "vm.swappiness" = 10;
+    "vm.vfs_cache_pressure" = 50;
+  };
+
+  # Udev rules for game controllers
+  services.udev.packages = with pkgs; [
+    game-devices-udev-rules  # Support for various game controllers
+  ];
+
+  # Add user to gamemode group
+  users.users.pinj.extraGroups = [ "gamemode" ];
+}

modules/gpu-amd.nix

@@ -0,0 +1,64 @@
+# modules/gpu-amd.nix
+# AMD GPU configuration: drivers, Vulkan, VA-API hardware acceleration, CoreCtrl
+{ config, pkgs, lib, ... }:
+
+{
+  # Enable OpenGL/Vulkan
+  hardware.graphics = {
+    enable = true;
+    enable32Bit = true;  # For Steam and 32-bit games
+
+    extraPackages = with pkgs; [
+      # VA-API for hardware video acceleration
+      vaapiVdpau
+      libvdpau-va-gl
+
+      # AMD-specific
+      amdvlk              # AMD's official Vulkan driver (alternative to RADV)
+      rocmPackages.clr.icd  # OpenCL support
+    ];
+
+    extraPackages32 = with pkgs.driversi686Linux; [
+      # 32-bit VA-API support for older games
+      vaapiVdpau
+      libvdpau-va-gl
+      amdvlk
+    ];
+  };
+
+  # Use RADV (Mesa) as default Vulkan driver - generally better for gaming
+  # AMDVLK is available as fallback via VK_ICD_FILENAMES
+  environment.variables = {
+    AMD_VULKAN_ICD = "RADV";  # Use RADV by default
+  };
+
+  # CoreCtrl for fan curves, overclocking, and GPU monitoring
+  programs.corectrl = {
+    enable = true;
+    gpuOverclock.enable = true;  # Enable overclocking capabilities
+  };
+
+  # Add user to corectrl group for full access without password
+  users.users.pinj.extraGroups = [ "corectrl" ];
+
+  # Kernel parameters for AMD GPU
+  boot.kernelParams = [
+    # Enable all power management features
+    "amdgpu.ppfeaturemask=0xffffffff"
+  ];
+
+  # GPU monitoring tools
+  environment.systemPackages = with pkgs; [
+    # Monitoring
+    radeontop           # AMD GPU monitoring (like nvidia-smi)
+    nvtopPackages.amd   # Modern GPU monitor with AMD support
+
+    # Vulkan tools
+    vulkan-tools        # vulkaninfo, etc.
+    vulkan-loader
+
+    # Video acceleration verification
+    libva-utils         # vainfo - verify VA-API
+    vdpauinfo           # Verify VDPAU
+  ];
+}

modules/theming.nix

@@ -0,0 +1,112 @@
+# modules/theming.nix
+# Visual theming: fonts, GTK/Qt themes, cursors, icons
+{ config, pkgs, lib, ... }:
+
+{
+  # ─────────────────────────────────────────────────────────────
+  # Fonts
+  # ─────────────────────────────────────────────────────────────
+  fonts = {
+    packages = with pkgs; [
+      # Your existing fonts
+      jetbrains-mono
+      nerd-fonts.jetbrains-mono
+
+      # Additional fonts for full coverage
+      inter                     # Modern UI font
+      noto-fonts               # Wide Unicode coverage
+      noto-fonts-cjk-sans      # Chinese, Japanese, Korean
+      noto-fonts-emoji         # Color emoji
+
+      # Optional nice fonts
+      source-sans              # Adobe Source Sans
+      source-serif             # Adobe Source Serif
+      source-code-pro          # Adobe Source Code
+      fira-code                # Alternative coding font with ligatures
+    ];
+
+    fontconfig = {
+      enable = true;
+
+      # Default fonts
+      defaultFonts = {
+        sansSerif = [ "Inter" "Noto Sans" ];
+        serif = [ "Noto Serif" ];
+        monospace = [ "JetBrainsMono Nerd Font" "JetBrains Mono" ];
+        emoji = [ "Noto Color Emoji" ];
+      };
+
+      # Font rendering settings
+      hinting = {
+        enable = true;
+        style = "slight";
+      };
+      antialias = true;
+      subpixel.rgba = "rgb";
+    };
+  };
+
+  # ─────────────────────────────────────────────────────────────
+  # GTK Theme
+  # ─────────────────────────────────────────────────────────────
+  environment.systemPackages = with pkgs; [
+    # GTK themes
+    adw-gtk3              # GTK3 theme matching libadwaita
+    adwaita-icon-theme    # GNOME icons (needed for many apps)
+
+    # Icon theme
+    papirus-icon-theme    # Modern, flat icons
+
+    # Cursor theme
+    bibata-cursors        # Modern cursor theme
+
+    # Qt theming
+    qt5ct                 # Qt5 configuration tool
+    qt6ct                 # Qt6 configuration tool
+    adwaita-qt            # Adwaita theme for Qt5
+    adwaita-qt6           # Adwaita theme for Qt6
+
+    # Theme tools
+    dconf-editor          # Edit GNOME/GTK settings
+    nwg-look              # GTK settings editor for Wayland
+  ];
+
+  # ─────────────────────────────────────────────────────────────
+  # Qt Theming Environment
+  # ─────────────────────────────────────────────────────────────
+  environment.sessionVariables = {
+    # Qt platform integration
+    QT_QPA_PLATFORMTHEME = "qt5ct";
+
+    # Cursor theme (for apps that don't respect system settings)
+    XCURSOR_THEME = "Bibata-Modern-Classic";
+    XCURSOR_SIZE = "24";
+  };
+
+  # ─────────────────────────────────────────────────────────────
+  # GTK Settings via dconf
+  # ─────────────────────────────────────────────────────────────
+  # These can be overridden by the user with nwg-look or dconf-editor
+  # Default theme settings are applied per-user
+
+  programs.dconf = {
+    enable = true;
+    profiles.user.databases = [{
+      settings = {
+        "org/gnome/desktop/interface" = {
+          color-scheme = "prefer-dark";
+          gtk-theme = "adw-gtk3-dark";
+          icon-theme = "Papirus-Dark";
+          cursor-theme = "Bibata-Modern-Classic";
+          cursor-size = lib.gvariant.mkInt32 24;
+          font-name = "Inter 11";
+          document-font-name = "Inter 11";
+          monospace-font-name = "JetBrainsMono Nerd Font 10";
+        };
+        "org/gnome/desktop/wm/preferences" = {
+          titlebar-font = "Inter Bold 11";
+        };
+      };
+    }];
+  };
+}