From 9ba5f8fdf042ee1917a097301eb759f5f296fdb4 Mon Sep 17 00:00:00 2001
From: Chris Kruining <chris@kruining.eu>
Date: Sun, 21 Jul 2024 14:03:57 +0200
Subject: [PATCH] Working on modularizing stuff, again

---
 config/shell-abbr/default.nix              |   3 +
 hosts/chris/laptop/default.nix             |   2 +
 hosts/chris/pc/default.nix                 |  50 +++++++
 hosts/chris/pc/default.nix.back            |  94 +++++++++++++
 hosts/chris/pc/hardware-configuration.nix  |  40 ++++++
 hosts/chris/server/default.nix             |   2 +
 lib/options.nix                            |   8 ++
 modules/develop/default.nix                |  16 +++
 modules/develop/rust.nix                   |  36 +++++
 modules/home-manager/terminals/default.nix |   8 --
 modules/networking/default.nix             |  33 +++++
 modules/networking/samba.nix               |  71 ++++++++++
 modules/options.nix                        |  34 +++++
 modules/programs/communication.nix         |  23 ++--
 modules/programs/default.nix               |  15 +++
 modules/programs/gaming.nix                |  45 -------
 modules/programs/media.nix                 |  12 +-
 modules/services/auth.nix                  |  19 +++
 modules/services/default.nix               |  11 ++
 modules/services/media.nix                 | 140 +++++++++++++++++++
 modules/shell/default.nix                  |  48 +++++++
 modules/shell/toolset/btop.nix             | 146 ++++++++++++++++++++
 modules/shell/toolset/fzf.nix              |  53 ++++++++
 modules/shell/toolset/git.nix              | 117 ++++++++++++++++
 modules/shell/toolset/gnupg.nix            |  31 +++++
 modules/shell/toolset/starship.nix         |  85 ++++++++++++
 modules/shell/toolset/tmux.nix             | 126 +++++++++++++++++
 modules/shell/zsh.nix                      | 149 +++++++++++++++++++++
 modules/system/audio.nix                   |  75 +++++++++--
 modules/system/graphics.nix                |  39 ++++++
 modules/virtualization/default.nix         |  12 ++
 modules/virtualization/podman.nix          |  26 ++++
 32 files changed, 1481 insertions(+), 88 deletions(-)
 create mode 100644 config/shell-abbr/default.nix
 create mode 100644 hosts/chris/laptop/default.nix
 create mode 100644 hosts/chris/pc/default.nix
 create mode 100644 hosts/chris/pc/default.nix.back
 create mode 100644 hosts/chris/pc/hardware-configuration.nix
 create mode 100644 hosts/chris/server/default.nix
 create mode 100644 lib/options.nix
 create mode 100644 modules/develop/default.nix
 create mode 100644 modules/develop/rust.nix
 create mode 100644 modules/networking/default.nix
 create mode 100644 modules/networking/samba.nix
 create mode 100644 modules/options.nix
 create mode 100644 modules/programs/default.nix
 create mode 100644 modules/services/auth.nix
 create mode 100644 modules/services/default.nix
 create mode 100644 modules/services/media.nix
 create mode 100644 modules/shell/default.nix
 create mode 100644 modules/shell/toolset/btop.nix
 create mode 100644 modules/shell/toolset/fzf.nix
 create mode 100644 modules/shell/toolset/git.nix
 create mode 100644 modules/shell/toolset/gnupg.nix
 create mode 100644 modules/shell/toolset/starship.nix
 create mode 100644 modules/shell/toolset/tmux.nix
 create mode 100644 modules/shell/zsh.nix
 create mode 100644 modules/system/graphics.nix
 create mode 100644 modules/virtualization/default.nix
 create mode 100644 modules/virtualization/podman.nix

diff --git a/config/shell-abbr/default.nix b/config/shell-abbr/default.nix
new file mode 100644
index 0000000..accda22
--- /dev/null
+++ b/config/shell-abbr/default.nix
@@ -0,0 +1,3 @@
+{
+  ls = "eza -al";
+};
diff --git a/hosts/chris/laptop/default.nix b/hosts/chris/laptop/default.nix
new file mode 100644
index 0000000..6416a04
--- /dev/null
+++ b/hosts/chris/laptop/default.nix
@@ -0,0 +1,2 @@
+{}:
+{}
diff --git a/hosts/chris/pc/default.nix b/hosts/chris/pc/default.nix
new file mode 100644
index 0000000..b5d287c
--- /dev/null
+++ b/hosts/chris/pc/default.nix
@@ -0,0 +1,50 @@
+{ config, lib, pkgs, ... }:
+{
+  imports = [ ./hardware-configuration.nix ];
+
+  modules = {
+    themes.active = "everforrest";
+
+    networking.networkManager.enable = true;
+
+    develop = {
+      rust.enable = true;
+      js.enable = true;
+      dotnet.enable = true;
+    };
+
+    desktop = {
+      plasma.enable = true;
+
+      terminal = {
+        default = "alacritty";
+        allacrity.enable = true;
+      };
+
+      editors = {
+        default = "nano";
+        nano.enable = true;
+      };
+
+      browsers = {
+        default = "firefox";
+        firefox.enable = true;
+        firefox.privacy.enable = true;
+      };
+    };
+
+    shell = {
+      default = "zsh";
+      toolset = {
+        git.enable = true;
+        gnupg.enable = true;
+      };
+    };
+  };
+
+  programs.kdeconnect = {
+    enable = true;
+    package = pkgs.valent;
+  };
+}
+
diff --git a/hosts/chris/pc/default.nix.back b/hosts/chris/pc/default.nix.back
new file mode 100644
index 0000000..2b3a830
--- /dev/null
+++ b/hosts/chris/pc/default.nix.back
@@ -0,0 +1,94 @@
+{ config, lib, pkgs, inputs, ... }:
+{
+  imports = [
+    ./hardware-configuration.nix
+    ../../modules/system/boot.nix
+    ../../modules/system/networking.nix
+    ../../modules/system/audio.nix
+    ../../modules/system/zsa_voyager.nix
+    
+    ../../modules/desktop/plasma.nix
+
+
+
+   
+    ../../modules/programs/security.nix
+    ../../modules/programs/theme.nix
+    ../../modules/programs/shell.nix
+    ../../modules/programs/gaming.nix
+    ../../modules/programs/harden.nix
+    ../../modules/programs/communication.nix
+    ../../modules/programs/office.nix
+    inputs.home-manager.nixosModules.default
+  ];
+
+  nixpkgs.config = {
+    allowUnfree = true;
+  };
+
+  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.chris = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" "audio" ]; # Enable ‘sudo’ for the user.
+    packages = with pkgs; [];
+  };
+
+  home-manager = {
+    useGlobalPkgs = true;
+    useUserPackages = true;
+    extraSpecialArgs = { inherit inputs; };
+    backupFileExtension = "backup";
+    users = {
+      chris.imports = [ ../../users/chris.nix ];
+#      root.imports = [ ../../users/root.nix ];
+    };
+  };
+
+  environment.systemPackages = with pkgs; [
+    neovim
+    wget
+#    chromium
+    thunderbird
+    zoxide
+    atuin
+    btop
+    dust
+    bat
+    tldr
+    eza
+    nextcloud-client
+  ];
+
+  systemd.services.numLockOnTty = {
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      ExecStart = lib.mkForce (pkgs.writeShellScript "numLockOnTty" ''
+        for tty in /dev/tty{1..6}; do
+          ${pkgs.kbd}/bin/setleds -D +num < "$tty";
+        done
+      '');
+    };
+  };
+
+  # This option defines the first version of NixOS you have installed on this particular machine,
+  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
+  #
+  # Most users should NEVER change this value after the initial install, for any reason,
+  # even if you've upgraded your system to a new NixOS release.
+  #
+  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
+  # so changing it will NOT upgrade your system.
+  #
+  # This value being lower than the current NixOS release does NOT mean your system is
+  # out of date, out of support, or vulnerable.
+  #
+  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
+  # and migrated your data accordingly.
+  #
+  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
+  system.stateVersion = "23.11"; # Did you read the comment?
+
+}
+
diff --git a/hosts/chris/pc/hardware-configuration.nix b/hosts/chris/pc/hardware-configuration.nix
new file mode 100644
index 0000000..656bb4c
--- /dev/null
+++ b/hosts/chris/pc/hardware-configuration.nix
@@ -0,0 +1,40 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "usb_storage" "usbhid" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/8c4eaf57-fdb2-4c4c-bcc0-74e85a1c7985";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/C842-316A";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  swapDevices =
+    [ { device = "/dev/disk/by-uuid/0ddf001a-5679-482e-b254-04a1b9094794"; }
+    ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp0s31f6.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}
diff --git a/hosts/chris/server/default.nix b/hosts/chris/server/default.nix
new file mode 100644
index 0000000..6416a04
--- /dev/null
+++ b/hosts/chris/server/default.nix
@@ -0,0 +1,2 @@
+{}:
+{}
diff --git a/lib/options.nix b/lib/options.nix
new file mode 100644
index 0000000..ca175d6
--- /dev/null
+++ b/lib/options.nix
@@ -0,0 +1,8 @@
+{lib, ...}: let
+  inherit (lib.options) mkOption;
+in {
+  mkOpt = type: default: mkOption {inherit type default;};
+
+  mkOpt' = type: default: description:
+    mkOption {inherit type default description;};
+}
diff --git a/modules/develop/default.nix b/modules/develop/default.nix
new file mode 100644
index 0000000..1383502
--- /dev/null
+++ b/modules/develop/default.nix
@@ -0,0 +1,16 @@
+{ config, options, lib, pkgs, ... }:
+let
+  inherit (lib.modules) mkIf;
+in
+{
+  options.modules.develop = let
+    inherit (lib.options) mkEnableOption;
+  in
+  {
+    xdg.enable = mkEnableOption "XDG-related conf" // { default = true; };
+  };
+
+  config = mkIf conf.modules.develop.xdg.enable {
+
+  };
+}
diff --git a/modules/develop/rust.nix b/modules/develop/rust.nix
new file mode 100644
index 0000000..15ba508
--- /dev/null
+++ b/modules/develop/rust.nix
@@ -0,0 +1,36 @@
+{ config, options, lib, pkgs, ... }:
+let
+  inherit (lib.attrsets) attrValues;
+  inherit (lib.modules) mkIf mkMerge;
+  inherit (lib.meta) getExe;
+in
+{
+  options.modules.develop.rust = let
+    inherit (lib.options) mkEnableOption;
+  in {
+    enable = mkEnableOption "Rust developmnt";
+  };
+
+  config = mkMerge [
+    (mkIf config.modules.develop.rust.enable (
+      nixpkgs.overlays = [ inputs.rust.overlays.default ];
+
+      user.packages = attrValues {
+        rust-package = pkgs.rust-bin.nightly.latest.default;
+        inherit (pkgs) rust-analyser rust-script;
+      };
+
+      environment.shellAlliases = {
+        rs = "rustc";
+        ca = "cargo";
+      };
+    ))
+
+    (mkIf config.modules.develop.cdg.enable {
+      env = {
+        CARGO_HOME = "$XDG_DATA_HOME/cargo";
+        PATH = [ "$CARGO_HOME/bin" ];
+      };
+    })
+  ];
+}
diff --git a/modules/home-manager/terminals/default.nix b/modules/home-manager/terminals/default.nix
index aa08a17..9d0fda2 100644
--- a/modules/home-manager/terminals/default.nix
+++ b/modules/home-manager/terminals/default.nix
@@ -30,18 +30,10 @@
       enableCompletion = true;
       syntaxHighlighting.enable = true;
 
-      shellAliases = {
-        rebuild = "nixos-rebuild switch --flake /etc/nixos#default";
-      };
-
       history = {
         size = 10000;
         path = "${config.xdg.dataHome}/zsh/history";
       };
-      
-      envExtra = ''
-        export SOME_ZSH_VARIABLE="something"
-      '';
 
       oh-my-zsh = {
         enable = true;
diff --git a/modules/networking/default.nix b/modules/networking/default.nix
new file mode 100644
index 0000000..e1f3c9b
--- /dev/null
+++ b/modules/networking/default.nix
@@ -0,0 +1,33 @@
+{
+  config,
+  options,
+  lib,
+  pkgs,
+  ...
+}: let
+  inherit (lib.meta) getExe;
+  inherit (lib.modules) mkDefault mkIf mkMerge;
+
+  cfg = config.modules.networking;
+in {
+  options.modules.networking = let
+    inherit (lib.options) mkEnableOption;
+  in {
+    enable = mkEnableOption "network manager";
+  };
+
+  config =mkIf cfg.networkManager.enable {
+    systemd.services.NetworkManager-wait-online.enable = false;
+
+    networking = {
+      firewall.enable = true;
+
+      networkmanager = {
+        enable = mkDefault true;
+        wifi.backend = "wpa_supplicant";
+      };
+    };
+
+    hm.services.network-manager-applet.enable = true;
+  };
+}
diff --git a/modules/networking/samba.nix b/modules/networking/samba.nix
new file mode 100644
index 0000000..88d7aff
--- /dev/null
+++ b/modules/networking/samba.nix
@@ -0,0 +1,71 @@
+{ pkgs, options, config, lib, ... }:
+let
+  inherit (builtins) getEnv;
+  inherit (lib.modules) mkIf mkMerge;
+in
+{
+  options.modules.networking.samba = let
+    inherit (lib.options) mkEnableOption;
+  in {
+    sharing.enable = mkEnableOption "Samba: enable NixOs -> external file-transfer";
+    receicing.enable = mkEnableOption "Samba: enable external -> NixOs file-transfer";
+  };
+
+  config = mkMerge [
+    (mkIf config.modules.networking.samba.sharing.enable {
+      users = {
+        group.samba-guest = {};
+        users.samba-guest = {
+          isSystemUser = true;
+          description = "Residence of our Samba guest users";
+          group = "samba-guest";
+          home = "/var/empty";
+          createHome = false;
+          shell = pkgs.shadow;
+        };
+      };
+      user.extraGroups = [ "samba-guest" ];
+
+      networking.firewall = {
+        allowPing = true;
+        allowedTCPPorts = [ 5327 ];
+        allowedUDPPorts = [ 3702 ];
+      };
+
+      services.samba-wsdd.enable = true;
+
+      services.samba = {
+        enable = true;
+        openFirewall = true;
+        extraConfig = ''
+          server string = ${config.networking.hostName}
+          netbios name = ${config.networking.hostName}
+          workgroup = WORKGROUP
+          security = user
+
+          create mask 0664
+          force create mode 0664
+          directory mask 0775
+          force directory mode 0775
+          follow symlink = yes
+
+          hosts allow = 192.168.1.0/24 localhost
+          hosts deny = 0.0.0.0/0
+          guest account = nobody
+          map to guest = bad user
+        '';
+        shares = {
+          Public = {
+            path = (getEnv "HOME") + "/Public";
+            browseable = "yes";
+            "read only" = "yes";
+            "guest ok" = "yes";
+            "forse user" = "${config.user.name}";
+            "force group" = "samba-guest";
+            "write list" = "${config.user.name}";
+          };
+        };
+      };
+    })
+  ];
+}
diff --git a/modules/options.nix b/modules/options.nix
new file mode 100644
index 0000000..0d9b634
--- /dev/null
+++ b/modules/options.nix
@@ -0,0 +1,34 @@
+{ config, options, lib, pkgs, ... }:
+let
+  inherit (builtins) elem isList pathExists toString;
+  inherit (lib.attrsets) mapAttrs mapAttrsToList;
+  inherit (lib.lists) findFirst;
+  inherit (lib.modules) mkAliasDefinitions;
+  inherit (lib.strings) concatMapStringsSep concatStringsSep;
+  inherit (lib.my) mkOpt mkOpt';
+in
+{
+  options = let
+    inherit (lib.options) mkOption;
+    inherit (lib.types) attrs attrsOf either listOf oneOf path str;
+  in
+  {
+    user = mkOpt attrs {};
+
+    kaas = {
+      dir = mkOpt path (findFirst pathExists (toString ../.) [
+        "${config.user.home}/Workspace/public/kaas"
+        "/etc/kaas"
+      ]);
+      hostDir = mkOpt path "${config.kaas.dir}/hosts/${config.networking.hostName}";
+      binDir = mkOpt path "${config.kaas.dir}/bin";
+      configDir = mkOpt path "${config.kaas.dir}/config";
+      modulesDir = mkOpt path "${config.kaas.dir}/modules";
+      themesDir = mkOpt path "${config.kaas.modulesDir}/themes";
+    };
+
+    home = {
+      # HIER BEN IK GEBLEVEN!!!
+    };
+  };
+}
diff --git a/modules/programs/communication.nix b/modules/programs/communication.nix
index e7943cd..7b8bc30 100644
--- a/modules/programs/communication.nix
+++ b/modules/programs/communication.nix
@@ -1,19 +1,16 @@
 { pkgs, config, ... }:
-{ 
+let
+  inherit (lib.modules) mkIf;
+in
+{
+  options.modules.programs.communication = let
+    inherit (lib.options) mkEnableOption;
+  in {
+    enable = mkEnableOption "Discord and Teamspeak";
+  };
+
   environment.systemPackages = with pkgs; [
-    discord
     webcord
     teamspeak_client
   ];
-
-#  config.xdg.desktopEntries.discord = {
-#    name = "Discord";
-#    genericName = "All-in-one cross-platform voice and text chat for gamers";
-#    exec = "Discord --in-process-gpu --use-gl=desktop";
-#    icon = "Discord";
-#    categories = [ "Network" "InstantMessaging" ];
-#    settings = {
-#      version = "1.4";
-#    };
-#  };
 }
diff --git a/modules/programs/default.nix b/modules/programs/default.nix
new file mode 100644
index 0000000..f8ce47f
--- /dev/null
+++ b/modules/programs/default.nix
@@ -0,0 +1,15 @@
+{ pkgs, config, ... }:
+let
+  inherit (lib.modules) mkIf;
+in
+{
+  options.modules.programs = let
+    inherit (lib.options) mkEnableOption;
+  in {
+    enable = mkEnableOption "Rust developmnt";
+  };
+
+  config = mkIf conf.modules.programs.enable {
+
+  };
+}
diff --git a/modules/programs/gaming.nix b/modules/programs/gaming.nix
index 0cc6164..54d6b88 100644
--- a/modules/programs/gaming.nix
+++ b/modules/programs/gaming.nix
@@ -1,50 +1,5 @@
 { config, pkgs, ... }:
 {
-  hardware.opengl = {
-    enable = true;
-    driSupport = true;
-    driSupport32Bit = true;
-  };
-
-  # Nvidia
-  services.xserver.videoDrivers = [ "nvidia" ];
-  hardware.nvidia = {
-    modesetting.enable = true;
-    open = false;
-    nvidiaSettings = true;
-
-    powerManagement = {
-      enable = true;
-      finegrained = false;
-    };
-
-    package = let
-      rcu_patch = pkgs.fetchpatch {
-        url = "https://github.com/gentoo/gentoo/raw/c64caf53/x11-drivers/nvidia-drivers/files/nvidia-drivers-470.223.02-gpl-pfn_valid.patch";
-        hash = "sha256-eZiQQp2S/asE7MfGvfe6dA/kdCvek9SYa/FFGp24dVg=";
-      };
-    in config.boot.kernelPackages.nvidiaPackages.mkDriver {
-      version = "535.154.05";
-      sha256_64bit = "sha256-fpUGXKprgt6SYRDxSCemGXLrEsIA6GOinp+0eGbqqJg=";
-      sha256_aarch64 = "sha256-G0/GiObf/BZMkzzET8HQjdIcvCSqB1uhsinro2HLK9k=";
-      openSha256 = "sha256-wvRdHguGLxS0mR06P5Qi++pDJBCF8pJ8hr4T8O6TJIo=";
-      settingsSha256 = "sha256-9wqoDEWY4I7weWW05F4igj1Gj9wjHsREFMztfEmqm10=";
-      persistencedSha256 = "sha256-d0Q3Lk80JqkS1B54Mahu2yY/WocOqFFbZVBh+ToGhaE=";
-
-      patches = [ rcu_patch ];
-    };
-
-    #prime = {
-    #  sync.enable = true;
-
-      # Integrated
-      # interBusId = "PCI:0:0:0";
-
-      # Dedicated
-    #  nvidiaBusId = "PCI:2:0:0";
-    #};
-  };
-
   # Steam
   programs.steam = {
     enable = true;
diff --git a/modules/programs/media.nix b/modules/programs/media.nix
index 91f8719..326e89e 100644
--- a/modules/programs/media.nix
+++ b/modules/programs/media.nix
@@ -21,15 +21,11 @@ in
   ];
 
   users = {
-    groups = {
-      ${group} = {};
-    };
-    users = {
-      ${user} = {
-        isSystemUser = true;
-        group = group;
-      }
+    users."${user}" = {
+      isSystemUser = true;
+      group = group;
     };
+    groups."${group}" = {};
   };
 
   system.activationScripts.var = mkForce ''
diff --git a/modules/services/auth.nix b/modules/services/auth.nix
new file mode 100644
index 0000000..023496a
--- /dev/null
+++ b/modules/services/auth.nix
@@ -0,0 +1,19 @@
+{ config, options, lib, pkgs, ... }:
+let
+  inherit (lib.modules) mkIf;
+in
+{
+  options.modules.services.auth = let
+    inherit (lib.options) mkEnableOption;
+  in {
+    enable = mkEnableOption "Media auth";
+  };
+
+  config = mkMerge [
+    (mkIf config.modules.services.auth.enable (
+      environment.systemPackages = with pkgs; [
+        authelia
+      ];
+    ))
+  ];
+}
diff --git a/modules/services/default.nix b/modules/services/default.nix
new file mode 100644
index 0000000..516778a
--- /dev/null
+++ b/modules/services/default.nix
@@ -0,0 +1,11 @@
+{ pkgs, config, ... }:
+let
+  inherit (lib.modules) mkIf;
+in
+{
+  options.modules.services = let
+    inherit (lib.options) mkEnableOption;
+  in {
+    enable = mkEnableOption "Enable all services";
+  };
+}
diff --git a/modules/services/media.nix b/modules/services/media.nix
new file mode 100644
index 0000000..048de7a
--- /dev/null
+++ b/modules/services/media.nix
@@ -0,0 +1,140 @@
+{ config, options, lib, pkgs, ... }:
+let
+  inherit (lib.attrsets) attrValues;
+  inherit (lib.modules) mkIf mkMerge mkForce;
+  inherit (lib.meta) getExe;
+
+  user = "media";
+  group = "media";
+  directory = "/var/media";
+in
+{
+  options.modules.services.media = let
+    inherit (lib.options) mkEnableOption;
+  in {
+    enable = mkEnableOption "Media tools";
+  };
+
+  config = mkIf config.modules.services.media.enable {
+    environment.systemPackages = with pkgs; [
+      podman-tui
+      jellyfin
+      jellyseerr
+      mediainfo
+    ];
+
+    users = {
+      users."${user}" = {
+        isSystemUser = true;
+        group = group;
+      };
+      groups."${group}" = {};
+    };
+
+    system.activationScripts.var = mkForce ''
+      install -d -m 0755 -o ${user} -g ${group} ${directory}/series
+      install -d -m 0755 -o ${user} -g ${group} ${directory}/movies
+      install -d -m 0755 -o ${user} -g ${group} ${directory}/qbittorrent
+      install -d -m 0755 -o ${user} -g ${group} ${directory}/sabnzbd
+      install -d -m 0755 -o ${user} -g ${group} ${directory}/reiverr/config
+      install -d -m 0755 -o ${user} -g ${group} ${directory}/downloads/incomplete
+      install -d -m 0755 -o ${user} -g ${group} ${directory}/downloads/done
+    '';
+
+    services = let
+      serviceConf = {
+        enable = true;
+        openFirewall = true;
+        user = user;
+        group = group;
+      };
+    in {
+      jellyfin = serviceConf;
+      radarr = serviceConf;
+      sonarr = serviceConf;
+      bazarr = serviceConf;
+      lidarr = serviceConf;
+
+      jellyseerr = {
+        enable = true;
+        openFirewall = true;
+      };
+
+      prowlarr = {
+        enable = true;
+        openFirewall = true;
+      };
+
+      qbittorrent = {
+        enable = true;
+        openFirewall = true;
+        dataDir = "${directory}/qbittorrent";
+        port = 5000;
+
+        user = user;
+        group = group;
+      };
+
+      sabnzbd = {
+        enable = true;
+        openFirewall = true;
+        configFile = "${directory}/sabnzbd/config.ini";
+        port = 5001;
+
+        user = user;
+        group = group;
+      };
+
+      caddy = {
+        enable = true;
+        virtualHosts = {
+          "media.kruining.eu".extraConfig = ''
+            reverse_proxy http://127.0.0.1:9494
+          '';
+          "series.kruining.eu".extraConfig = ''
+            reverse_proxy http://127.0.0.1:8989
+          '';
+          "movies.kruining.eu".extraConfig = ''
+            reverse_proxy http://127.0.0.1:7878
+          '';
+          "jellyfin.kruining.eu".extraConfig = ''
+            reverse_proxy http://127.0.0.1:8096
+          '';
+          "cloud.kruining.eu".extraConfig = ''
+            php_fastcgi unix//run/phpfpm/nextcloud.sock {
+              env front_controller_active true
+            }
+          '';
+        };
+      };
+    };
+
+    modules.virtualisation = {
+      enable = true;
+      podman.enable = true;
+    };
+
+    virtualisation = {
+      oci-containers = {
+        backend = "podman";
+
+        containers = {
+          flaresolverr = {
+            image = "flaresolverr/flaresolverr";
+            autoStart = true;
+            ports = [ "127.0.0.1:8191:8191" ];
+          };
+
+          reiverr = {
+            image = "ghcr.io/aleksilassila/reiverr:v2.0.0-alpha.6";
+            autoStart = true;
+            ports = [ "127.0.0.1:9494:9494" ];
+            volumes = [ "${directory}/reiverr/config:/config" ];
+          };
+        };
+      };
+    };
+
+    systemd.services.jellyfin.serviceConfig.killSignal = lib.mkForce "SIGKILL";
+  };
+}
diff --git a/modules/shell/default.nix b/modules/shell/default.nix
new file mode 100644
index 0000000..f858282
--- /dev/null
+++ b/modules/shell/default.nix
@@ -0,0 +1,48 @@
+{ options, config, lib, pkgs, ... }:
+let
+  inherit (lib.attrsets) attrValues;
+  inherit (lib.modules) mkIf mkMerge;
+
+  cfg = config.modules.shell;
+in
+{
+  options.modules.shell = let
+    inherit (lib.options) mkOption mkEnableOption;
+    inherit (lib.types) nullOr enum;
+  in {
+    default = mkOption {
+      type = nullOr (enum ["fish" "zsh" "xonsh"]);
+      default = null;
+      description = "Default system shell";
+    };
+    corePkgs.enable = mkEnableOption "core shell packages";
+  };
+
+  config = mkMerge [
+    (mkIf (cfg.default != null) {
+      users.defaultUserShell = pkgs."${cfg.default}";
+    })
+
+    (mkIf cfg.corePkgs.enable {
+      modules.shell.toolset = {
+        btop.enable = true;
+        fzf.enable = true;
+        starship.enable = true;
+        tmux.enable = true;
+      };
+
+      hm.programs.direnv = {
+        enable = true;
+        nix-direnv.enable = true;
+        config.whitelist.prefix = ["/home"];
+      };
+
+      user.packages = attrValues {
+        inherit (pkgs) any-nix-shell pwgen yt-dlp ripdrag yazi;
+        inherit (pkgs) bat fd zoxide;
+
+        rgFull = pkgs.ripgrep.override {withPCRE2 = true;};
+      };
+    })
+  ];
+}
diff --git a/modules/shell/toolset/btop.nix b/modules/shell/toolset/btop.nix
new file mode 100644
index 0000000..43b745e
--- /dev/null
+++ b/modules/shell/toolset/btop.nix
@@ -0,0 +1,146 @@
+{ config, options, lib, pkgs, ... }:
+let
+  inherit (lib.modules) mkIf;
+  inherit (lib.strings) concatStringsSep;
+in
+{
+  options.modules.shell.toolset.btop = let
+    inherit (lib.options) mkEnableOption;
+  in { enable = mkEnableOption "system-monitor"; };
+
+  config = mkIf config.modules.shell.toolset.btop.enable {
+    hm.programs.btop = let
+      inherit (config.modules.themes) active;
+    in
+    {
+      enable = true;
+      settings = {
+        force_tty = false;
+        vim_keys = true; # Directional keys: "h,j,k,l,g,G"
+        update_ms = 1500; # ms (s^{-3})
+        temp_scale = "celsius";
+        base_10_sizes = false;
+        show_cpu_freq = true;
+        clock_format = "%H:%M";
+        background_update = true;
+        disks_filter = "exclude=/boot";
+
+        color_theme = "${active}";
+        rounded_corners = true;
+        theme_background = false;
+        truecolor = true;
+        presets = concatStringsSep "," [
+          "cpu:1:default"
+          "proc:0:default cpu:0:default"
+          "mem:0:default"
+          "net:0:default cpu:0:block"
+          "net:0:tty"
+        ];
+        graph_symbol = "braille";
+        graph_symbol_cpu = "default";
+        graph_symbol_mem = "default";
+        graph_symbol_net = "default";
+        graph_symbol_proc = "default";
+        shown_boxes = "proc cpu mem net";
+
+        proc_sorting = "cpu lazy";
+        proc_reversed = false;
+        proc_tree = false;
+        proc_colors = true;
+        proc_gradient = true;
+        proc_per_core = true;
+        proc_mem_bytes = true;
+        proc_info_smaps = false;
+        proc_left = false;
+
+        cpu_graph_upper = "total";
+        cpu_graph_lower = "total";
+        cpu_single_graph = false;
+        cpu_bottom = false;
+        show_uptime = true;
+        check_temp = true;
+        cpu_sensor = "Auto";
+        show_coretemp = true;
+        cpu_core_map = "";
+        custom_cpu_name = "";
+
+        mem_graphs = true;
+        mem_below_net = false;
+
+        show_swap = true;
+        swap_disk = true;
+        show_disks = true;
+        only_physical = true;
+        use_fstab = false; # Enable -> disables `only_physical`
+        disk_free_priv = false;
+        show_io_stat = true;
+
+        io_mode = false;
+        io_graph_combined = false;
+        io_graph_speeds = "";
+
+        net_download = 100;
+        net_upload = 100;
+        net_auto = true;
+        net_sync = false;
+        net_iface = "br0";
+        show_battery = true;
+        selected_battery = "Auto";
+        log_level = "DEBUG";
+      };
+    };
+
+    home.configFile.btop-theme = let
+      inherit (config.modules.themes) active;
+    in
+      mkIf (active != null) {
+        target = "btop/themes/${active}.theme";
+        text = let
+          inherit (config.modules.themes.colors.main) bright types;
+        in ''
+          theme[main_bg]="${types.bg}"
+          theme[main_fg]="${types.fg}"
+          theme[title]="${types.fg}"
+          theme[hi_fg]="${types.highlight}"
+          theme[selected_bg]="${types.border}"
+          theme[selected_fg]="${types.bg}"
+          theme[inactive_fg]="${bright.black}"
+          theme[graph_text]="${bright.yellow}"
+          theme[meter_bg]="${bright.black}"
+          theme[proc_misc]="${bright.yellow}"
+          theme[cpu_box]="${bright.cyan}"
+          theme[mem_box]="${bright.green}"
+          theme[net_box]="${bright.magenta}"
+          theme[proc_box]="${bright.yellow}"
+          theme[div_line]="${bright.black}"
+          theme[temp_start]="${bright.yellow}"
+          theme[temp_mid]="${types.panelbg}"
+          theme[temp_end]="${bright.red}"
+          theme[cpu_start]="${bright.cyan}"
+          theme[cpu_mid]="${types.border}"
+          theme[cpu_end]="${bright.green}"
+          theme[free_start]="${bright.green}"
+          theme[free_mid]="${bright.green}"
+          theme[free_end]="${bright.green}"
+          theme[cached_start]="${bright.yellow}"
+          theme[cached_mid]="${bright.yellow}"
+          theme[cached_end]="${bright.magenta}"
+          theme[available_start]="${bright.yellow}"
+          theme[available_mid]="${bright.yellow}"
+          theme[available_end]="${bright.yellow}"
+          theme[used_start]="${types.panelbg}"
+          theme[used_mid]="${types.panelbg}"
+          theme[used_end]="${bright.red}"
+          theme[download_start]="${bright.blue}"
+          theme[download_mid]="${bright.blue}"
+          theme[download_end]="${bright.magenta}"
+          theme[upload_start]="${bright.blue}"
+          theme[upload_mid]="${bright.blue}"
+          theme[upload_end]="${bright.magenta}"
+          theme[process_start]="${bright.cyan}"
+          theme[process_mid]="${types.border}"
+          theme[process_end]="${bright.green}"
+        '';
+      };
+  };
+}
diff --git a/modules/shell/toolset/fzf.nix b/modules/shell/toolset/fzf.nix
new file mode 100644
index 0000000..060c84e
--- /dev/null
+++ b/modules/shell/toolset/fzf.nix
@@ -0,0 +1,53 @@
+{ config, options, lib, pkgs, ... }:
+let
+  inherit (lib.attrsets) optionalAttrs;
+  inherit (lib.modules) mkIf;
+in
+{
+  options.modules.shell.toolset.fzf = let
+    inherit (lib.options) mkEnableOption;
+  in { enable = mkEnableOption "TUI Fuzzy Finder."; };
+
+  config = mkIf config.modules.shell.toolset.fzf.enable {
+    hm.programs.fzf = let
+      defShell = config.modules.shell.default;
+    in {
+      enable = true;
+      enableBashIntegration = true;
+      enableZshIntegration = defShell == "zsh";
+      enableFishIntegration = defShell == "fish";
+
+      tmux.enableShellIntegration = true;
+      tmux.shellIntegrationOptions = ["-d 40%"];
+
+      defaultCommand = "fd --type f";
+      defaultOptions = ["--height 40%" "--border"];
+
+      changeDirWidgetCommand = "fd --type d";
+      changeDirWidgetOptions = ["--preview 'tree -C {} | head -200'"];
+
+      fileWidgetCommand = "fd --type f";
+      fileWidgetOptions = ["--preview 'head {}'"];
+      historyWidgetOptions = ["--sort" "--exact"];
+
+      colors = let
+        inherit (config.modules.themes) active;
+        inherit (config.modules.themes.colors.main) normal types;
+      in
+        mkIf (active != null) {
+          bg = "${types.bg}";
+          "bg+" = "${types.bg}";
+          fg = "${types.border}";
+          "fg+" = "${types.border}";
+          hl = "${normal.red}";
+          "hl+" = "${normal.red}";
+          header = "${normal.red}";
+          marker = "${normal.magenta}";
+          info = "${normal.magenta}";
+          prompt = "${types.border}";
+          spinner = "${types.panelbg}";
+          pointer = "${types.border}";
+        };
+    };
+  };
+}
diff --git a/modules/shell/toolset/git.nix b/modules/shell/toolset/git.nix
new file mode 100644
index 0000000..b6e5aa0
--- /dev/null
+++ b/modules/shell/toolset/git.nix
@@ -0,0 +1,117 @@
+{ config, options, lib, pkgs, ... }:
+let
+  inherit (builtins) readFile;
+  inherit (lib.attrsets) attrValues optionalAttrs;
+  inherit (lib.modules) mkIf;
+in
+{
+  options.modules.shell.toolset.git = let
+    inherit (lib.options) mkEnableOption;
+  in { enable = mkEnableOption "version-control system"; };
+
+  config = mkIf config.modules.shell.toolset.git.enable {
+    user.packages = attrValues ({
+        inherit (pkgs) act dura lazygit;
+        inherit (pkgs.gitAndTools) gh git-open;
+      }
+      // optionalAttrs config.modules.shell.toolset.gnupg.enable {
+        inherit (pkgs.gitAndTools) git-crypt;
+      });
+
+    # Prevent x11 askPass prompt on git push:
+    programs.ssh.askPassword = "";
+
+    hm.programs.zsh.initExtra = ''
+      # -------===[ Helpful Git Fn's ]===------- #
+      gitignore() {
+        curl -s -o .gitignore https://gitignore.io/api/$1
+      }
+    '';
+
+    hm.programs.fish.functions = {
+      gitignore = "curl -sL https://www.gitignore.io/api/$argv";
+    };
+
+    env = {GITHUB_TOKEN = "$(cat /run/agenix/tokenGH)";};
+
+    hm.programs.git = {
+      enable = true;
+      package = pkgs.gitFull;
+      difftastic = {
+        enable = true;
+        background = "dark";
+        color = "always";
+        display = "inline";
+      };
+
+      ignores = [
+        # General:
+        "*.bloop"
+        "*.bsp"
+        "*.metals"
+        "*.metals.sbt"
+        "*metals.sbt"
+        "*.direnv"
+        "*.envrc"
+        "*hie.yaml"
+        "*.mill-version"
+        "*.jvmopts"
+
+        # OS-related:
+        ".DS_Store?"
+        ".DS_Store"
+        ".CFUserTextEncoding"
+        ".Trash"
+        ".Xauthority"
+        "thumbs.db"
+        "Thumbs.db"
+        "Icon?"
+
+        # Compiled residues:
+        "*.class"
+        "*.exe"
+        "*.o"
+        "*.pyc"
+        "*.elc"
+      ];
+
+      extraConfig = {
+        init.defaultBranch = "main";
+        core = {
+          editor = "nvim";
+          whitespace = "trailing-space,space-before-tab";
+        };
+        credential.helper = "${pkgs.gitFull}/bin/git-credential-libsecret";
+
+        user = {
+          name = "Chris Kruining";
+          email = "chris@kruining.eu";
+          signingKey = readFile "${config.user.home}/.ssh/id_ed25519.pub";
+        };
+
+        gpg.format = "ssh";
+        commit.gpgSign = true;
+        tag.gpgSign = true;
+
+        push = {
+          default = "current";
+          gpgSign = "if-asked";
+          autoSquash = true;
+        };
+        pull.rebase = true;
+
+        filter = {
+          required = true;
+          smudge = "git-lfs smudge -- %f";
+          process = "git-lfs filter-process";
+          clean = "git-lfs clean -- %f";
+        };
+
+        url = {
+          "https://github.com/".insteadOf = "gh:";
+          "git@github.com:".insteadOf = "ssh+gh:";
+        };
+      };
+    };
+  };
+}
diff --git a/modules/shell/toolset/gnupg.nix b/modules/shell/toolset/gnupg.nix
new file mode 100644
index 0000000..008666b
--- /dev/null
+++ b/modules/shell/toolset/gnupg.nix
@@ -0,0 +1,31 @@
+{ config, options, lib, pkgs, ... }:
+let
+  inherit (builtins) getEnv;
+  inherit (lib.modules) mkIf;
+
+  cfg = config.modules.shell.toolset.gnupg;
+in
+{
+  options.modules.shell.toolset.gnupg = let
+    inherit (lib.options) mkEnableOption;
+  in { enable = mkEnableOption "cryptographic suite"; };
+
+  config = mkIf config.modules.shell.toolset.gnupg.enable {
+    environment.variables.GNUPGHOME = "$XDG_CONFIG_HOME/gnupg";
+
+    programs.gnupg.agent = {
+      enable = true;
+      enableSSHSupport = true;
+      pinentryPackage = pkgs.pinentry-gnome3;
+
+      settings = let
+        cacheTTL = 86400;
+      in {
+        default-cache-ttl = cacheTTL;
+        default-cache-ttl-ssh = cacheTTL;
+        max-cache-ttl = cacheTTL;
+        max-cache-ttl-ssh = cacheTTL;
+      };
+    };
+  };
+}
diff --git a/modules/shell/toolset/starship.nix b/modules/shell/toolset/starship.nix
new file mode 100644
index 0000000..0215256
--- /dev/null
+++ b/modules/shell/toolset/starship.nix
@@ -0,0 +1,85 @@
+{ config, options, lib, pkgs, ... }:
+let
+  inherit (lib.modules) mkIf;
+in
+{
+  options.modules.shell.toolset.starship = let
+    inherit (lib.options) mkEnableOption;
+  in { enable = mkEnableOption "minimal shell ricing"; };
+
+  config = mkIf config.modules.shell.toolset.starship.enable {
+    hm.programs.starship = {
+      enable = true;
+      settings = let
+        inherit (config.modules.themes.colors.main) normal types;
+      in {
+        scan_timeout = 10;
+        add_newline = true;
+        line_break.disabled = true;
+
+        format = "$username$hostname$nix_shell$git_branch$git_commit$git_state$git_status$directory$jobs$cmd_duration$character";
+        username = {
+          style_user = "${normal.blue} bold";
+          style_root = "${normal.red} bold";
+          format = "[$user]($style) ";
+          disabled = false;
+          show_always = true;
+        };
+
+        hostname = {
+          ssh_only = false;
+          ssh_symbol = "🌐 ";
+          format = "on [$hostname](bold ${normal.red}) ";
+          trim_at = ".local";
+          disabled = false;
+        };
+
+        nix_shell = {
+          symbol = " ";
+          format = "[$symbol$name]($style) ";
+          style = "${normal.purple} bold";
+        };
+
+        git_branch = {
+          only_attached = true;
+          format = "[$symbol$branch]($style) ";
+          symbol = "שׂ";
+          style = "${normal.yellow} bold";
+        };
+
+        git_commit = {
+          only_detached = true;
+          format = "[ﰖ$hash]($style) ";
+          style = "${normal.yellow} bold";
+        };
+
+        git_state = {
+          style = "${normal.purple} bold";
+        };
+
+        git_status = {
+          style = "${normal.green} bold";
+        };
+
+        directory = {
+          read_only = " ";
+          truncation_length = 0;
+        };
+
+        cmd_duration = {
+          format = "[$duration]($style) ";
+          style = "${normal.blue}";
+        };
+
+        jobs = {
+          style = "${normal.green} bold";
+        };
+
+        character = {
+          success_symbol = "[\\$](${normal.green} bold)";
+          error_symbol = "[\\$](${normal.red} bold)";
+        };
+      };
+    };
+  };
+}
diff --git a/modules/shell/toolset/tmux.nix b/modules/shell/toolset/tmux.nix
new file mode 100644
index 0000000..ce6ef5d
--- /dev/null
+++ b/modules/shell/toolset/tmux.nix
@@ -0,0 +1,126 @@
+{ config, options, lib, pkgs, ... }:
+let
+  inherit (lib.modules) mkIf;
+in
+{
+  options.modules.shell.toolset.tmux = let
+    inherit (lib.options) mkEnableOption;
+  in { enable = mkEnableOption "terminal multiplexer"; };
+
+  config = mkIf config.modules.shell.toolset.tmux.enable {
+    hm.programs.tmux = {
+      enable = true;
+      secureSocket = true;
+      keyMode = "vi";
+      prefix = "C-a";
+      terminal = "tmux-256color";
+
+      baseIndex = 1;
+      clock24 = true;
+      disableConfirmationPrompt = true;
+      escapeTime = 0;
+
+      aggressiveResize = false;
+      resizeAmount = 2;
+      reverseSplit = false;
+      historyLimit = 5000;
+      newSession = true;
+
+      plugins = let
+        inherit (pkgs.tmuxPlugins) resurrect continuum;
+      in [
+        {
+          plugin = resurrect;
+          extraConfig = "set -g @resurrect-strategy-nvim 'session'";
+        }
+        {
+          plugin = continuum;
+          extraConfig = ''
+            set -g @continuum-restore 'on'
+            set -g @continuum-save-interval '60' # minutes
+          '';
+        }
+      ];
+
+      extraConfig = let
+        inherit (config.modules.themes.colors.main) normal types;
+      in ''
+        # -------===[ Color Correction ]===------- #
+        set-option -ga terminal-overrides ",*256col*:Tc"
+        set-option -ga terminal-overrides '*:Ss=\E[%p1%d q:Se=\E[ q'
+        set-environment -g COLORTERM "truecolor"
+
+        # -------===[ General-Configurations ]===------- #
+        set-option -g renumber-windows on
+        set-window-option -g automatic-rename on
+        set-window-option -g word-separators ' @"=()[]'
+
+        set-option -g mouse on
+        set-option -s focus-events on
+        set-option -g renumber-windows on
+        set-option -g allow-rename off
+
+        # -------===[ Activity/Sound ]===------- #
+        set-option -g bell-action none
+        set-option -g visual-bell off
+        set-option -g visual-silence off
+        set-option -g visual-activity off
+        set-window-option -g monitor-activity off
+
+        # -------===[ Status-Bar ]===------- #
+        set-option -g status on
+        set-option -g status-interval 1
+        set-option -g status-style bg=default,bold,italics
+
+        set-option -g status-position top
+        set-option -g status-justify left
+
+        set-option -g status-left-length "40"
+        set-option -g status-right-length "80"
+
+        # Messages:
+        set-option -g message-style fg="${types.bg}",bg="${types.highlight}",align="centre"
+        set-option -g message-command-style fg="${types.bg}",bg="${types.highlight}",align="centre"
+
+        # Panes:
+        set-option -g pane-border-style fg="${types.fg}"
+        set-option -g pane-active-border-style fg="${types.border}"
+
+        # Windows:
+        set-option -g window-status-format "#[fg=${types.fg}] #W/#{window_panes} "
+        set-option -g window-status-current-format "#{?client_prefix,#[fg=${types.bg}]#[bg=${normal.red}] #I:#W #[fg=${normal.red}]#[bg=default],#[fg=${types.bg}]#[bg=${normal.magenta}] #I:#W #[fg=${normal.magenta}]#[bg=default]}"
+
+        # -------===[ Statusline ]===------- #
+        set-option -g status-left "#[fg=${types.bg}]#[bg=${normal.blue}]#[bold]   #[fg=${normal.blue}]#[bg=default]"
+        set-option -g status-bg default
+        set-option -g status-right "#[italics]∡ #H | %b %d, %H:%M  #[fg=${types.bg},bg=${types.highlight},bold,italics] base-#S "
+
+        # -------===[ Clock & Selection ]===------- #
+        set-window-option -g clock-mode-colour "${types.border}"
+        set-window-option -g mode-style "fg=${types.bg} bg=${types.highlight} bold"
+
+        # -------===[ Keybindings ]===------- #
+        bind-key c clock-mode
+
+        # Window Control(s):
+        bind-key q kill-session
+        bind-key Q kill-server
+        bind-key t new-window -c '#{pane_current_path}'
+
+        # Buffers:
+        bind-key b list-buffers
+        bind-key p paste-buffer
+        bind-key P choose-buffer
+
+        # Split bindings:
+        bind-key - split-window -v -c '#{pane_current_path}'
+        bind-key / split-window -h -c '#{pane_current_path}'
+
+        # Copy/Paste bindings:
+        bind-key -T copy-mode-vi v send-keys -X begin-selection     -N "Start visual mode for selection"
+        bind-key -T copy-mode-vi y send-keys -X copy-selection      -N "Yank text into buffer"
+        bind-key -T copy-mode-vi r send-keys -X rectangle-toggle    -N "Yank region into buffer"
+      '';
+    };
+  };
+}
diff --git a/modules/shell/zsh.nix b/modules/shell/zsh.nix
new file mode 100644
index 0000000..b2694f7
--- /dev/null
+++ b/modules/shell/zsh.nix
@@ -0,0 +1,149 @@
+{ config, options, pkgs, lib, ... }:
+let
+  inherit (lib.attrsets) mapAttrsToList;
+  inherit (lib.modules) mkIf;
+  inherit (lib.strings) concatStrings escapeNixString;
+
+  cfg = config.modules.shell;
+in
+{
+  config = mkIf (cfg.default == "zsh") {
+    modules.shell = {
+      corePkgs.enable = true;
+      toolset = {
+        macchina.enable = true;
+        starship.enable = true;
+      };
+    };
+
+    hm.programs.starship.enableZshIntegration = true;
+
+    # Enable completion for sys-packages:
+    environment.pathsToLink = ["/share/zsh"];
+
+    programs.zsh.enable = true;
+
+    hm.programs.zsh = {
+      enable = true;
+      enableCompletion = true;
+      autosuggestion.enable = true;
+      syntaxHighlighting.enable = true;
+
+      history = {
+        size = 10000;
+        path = "${config.xdg.dataHome}/zsh/history";
+      };
+
+      oh-my-zsh = {
+        enable = true;
+        plugins = ["git" "docker-compose" "zoxide"];
+      };
+
+      plugins = let
+        mkZshPlugin = {
+          pkg,
+          file ? "${pkg.pname}.plugin.zsh",
+        }: {
+          name = pkg.pname;
+          src = pkg.src;
+          inherit file;
+        };
+      in
+        with pkgs; [
+          (mkZshPlugin {pkg = zsh-abbr;})
+          (mkZshPlugin {pkg = zsh-autopair;})
+          (mkZshPlugin {pkg = zsh-you-should-use;})
+          (mkZshPlugin {
+            pkg = zsh-nix-shell;
+            file = "nix-shell.plugin.zsh";
+          })
+        ];
+
+      syntaxHighlighting = let
+        inherit (config.modules.themes) active;
+        inherit (config.modules.themes.colors.main) normal bright types;
+      in
+        mkIf (active != null) {
+          enable = true;
+          highlighters = ["main" "brackets" "pattern" "cursor" "regexp" "root" "line"];
+          patterns = {
+            "sudo " = "fg=${normal.red},bold";
+            "rm -rf *" = "fg=${normal.red},bold";
+          };
+          styles = {
+            # -------===[ Comments ]===------- #
+            comment = "fg=${normal.black}";
+
+            # -------===[ Functions/Methods ]===------- #
+            alias = "fg=${normal.magenta}";
+            "suffix-alias" = "fg=${normal.magenta}";
+            "global-alias" = "fg=${normal.magenta}";
+            function = "fg=${normal.blue}";
+            command = "fg=${normal.green}";
+            precommand = "fg=${normal.green},italic";
+            autodirectory = "fg=${normal.yellow},italic";
+            "single-hyphen-option" = "fg=${normal.yellow}";
+            "double-hyphen-option" = "fg=${normal.yellow}";
+            "back-quoted-argument" = "fg=${normal.magenta}";
+
+            # -------===[ Built-ins ]===------- #
+            builtin = "fg=${normal.blue}";
+            "reserved-word" = "fg=${normal.green}";
+            "hashed-command" = "fg=${normal.green}";
+
+            # -------===[ Punctuation ]===------- #
+            commandseparator = "fg=${bright.red}";
+            "command-substitution-delimiter" = "fg=${types.border}";
+            "command-substitution-delimiter-unquoted" = "fg=${types.border}";
+            "process-substitution-delimiter" = "fg=${types.border}";
+            "back-quoted-argument-delimiter" = "fg=${bright.red}";
+            "back-double-quoted-argument" = "fg=${bright.red}";
+            "back-dollar-quoted-argument" = "fg=${bright.red}";
+
+            # -------===[ Strings ]===------- #
+            "command-substitution-quoted" = "fg=${bright.yellow}";
+            "command-substitution-delimiter-quoted" = "fg=${bright.yellow}";
+            "single-quoted-argument" = "fg=${bright.yellow}";
+            "single-quoted-argument-unclosed" = "fg=${normal.red}";
+            "double-quoted-argument" = "fg=${bright.yellow}";
+            "double-quoted-argument-unclosed" = "fg=${normal.red}";
+            "rc-quote" = "fg=${bright.yellow}";
+
+            # -------===[ Variables ]===------- #
+            "dollar-quoted-argument" = "fg=${types.highlight}";
+            "dollar-quoted-argument-unclosed" = "fg=${bright.red}";
+            "dollar-double-quoted-argument" = "fg=${types.highlight}";
+            assign = "fg=${types.highlight}";
+            "named-fd" = "fg=${types.highlight}";
+            "numeric-fd" = "fg=${types.highlight}";
+
+            # -------===[ Non-Exclusive ]===------- #
+            "unknown-token" = "fg=${normal.red}";
+            path = "fg=${types.highlight},underline";
+            path_pathseparator = "fg=${bright.red},underline";
+            path_prefix = "fg=${types.highlight},underline";
+            path_prefix_pathseparator = "fg=${bright.red},underline";
+            globbing = "fg=${types.highlight}";
+            "history-expansion" = "fg=${normal.magenta}";
+            "back-quoted-argument-unclosed" = "fg=${normal.red}";
+            redirection = "fg=${types.highlight}";
+            arg0 = "fg=${types.highlight}";
+            default = "fg=${types.highlight}";
+            cursor = "fg=${types.highlight}";
+          };
+        };
+    };
+
+    home.configFile.zsh-abbreviations = {
+      target = "zsh/abbreviations";
+      text = let
+        abbrevs = import "${config.snowflake.configDir}/shell-abbr";
+      in ''
+        ${concatStrings (mapAttrsToList
+          (k: v: "abbr ${k}=${escapeNixString v}")
+          abbrevs
+        )}
+      '';
+    };
+  };
+}
diff --git a/modules/system/audio.nix b/modules/system/audio.nix
index c4c5fb4..4c5446c 100644
--- a/modules/system/audio.nix
+++ b/modules/system/audio.nix
@@ -1,19 +1,66 @@
-{ pkgs, ... }:
+{ config, options, lib, pkgs, ... }:
+let
+  inherit (lib.attrsets) attrValues;
+  inherit (lib.modules) mkIf;
+
+  cfg = config.modules.hardware.pipewire;
+in
 {
-  sound.enable = false;
-  hardware.pulseaudio.enable = false;
+  options.modules.hardware.pipewire = let
+    inherit (lib.options) mkEnableOption;
+  in
+  {
+    enable = mkEnableOption "modern audio support";
+  };
 
-  users.extraGroups.audio.members = [ "chris" ];
-
-  security.rtkit.enable = true;
-
-  services.pipewire = {
-    enable = true;
-    alsa = {
-      enable = true;
-      support32Bit = true;
+  config = mkIf cfg.enable {
+    user.packages = attrValues {
+      inherit (pkgs) easyeffects
+    };
+
+    security.rtkit.enable = true;
+
+    services.pipewire = {
+      enable = true;
+      wireplumber.enable = true;
+      pulse.enable = true;
+#       jack.enable = true;
+
+      alsa = {
+        enable = true;
+        support32Bit = true;
+      };
+    };
+
+    home.configFile = mkIf config.module.hardware.bluetooth.enable {
+      wireplumber-bluetooth = {
+        target = "wireplumber/bluetooth.lua.d/51-bluez-config.lua";
+        text = ''
+          bluez_monitor.properties = {
+              ["bluez5.enable-sbc-xq"] = true,
+              ["bluez5.enable-msbc"] = true,
+              ["bluez5.enable-hw-volume"] = true,
+              ["bluez5.headset-roles"] = "[ hsp_hs hsp_ag hfp_hf hfp_ag ]"
+          }
+        '';
+      };
+
+      wireplumber-disable-suspension = {
+        target = "wireplumber/main.lua.d/51-disable-suspension.lua";
+        text = ''
+          table.insert(alsa_monitor.rules, {
+              matches = {
+                  { -- Matches all sources.
+                      { "node.name", "matches", "alsa_input.*" },
+                  },
+                  { -- Matches all sinks.
+                      { "node.name", "matches", "alsa_output.*" },
+                  },
+              },
+              apply_properties = { ["session.suspend-timeout-seconds"] = 0 },
+          })
+        '';
+      };
     };
-    pulse.enable = true;
-    jack.enable = true;
   };
 }
diff --git a/modules/system/graphics.nix b/modules/system/graphics.nix
new file mode 100644
index 0000000..0dd9504
--- /dev/null
+++ b/modules/system/graphics.nix
@@ -0,0 +1,39 @@
+{ config, pkgs, ... }:
+{
+  services.xserver.videoDrivers = [ "nvidia" ];
+
+  hardware = {
+    opengl = {
+      enable = true;
+      driSupport = true;
+      driSupport32Bit = true;
+    };
+
+    nvidia = {
+      modesetting.enable = true;
+      open = false;
+      nvidiaSettings = true;
+
+      powerManagement = {
+        enable = true;
+        finegrained = false;
+      };
+
+      package = let
+        rcu_patch = pkgs.fetchpatch {
+          url = "https://github.com/gentoo/gentoo/raw/c64caf53/x11-drivers/nvidia-drivers/files/nvidia-drivers-470.223.02-gpl-pfn_valid.patch";
+          hash = "sha256-eZiQQp2S/asE7MfGvfe6dA/kdCvek9SYa/FFGp24dVg=";
+        };
+      in config.boot.kernelPackages.nvidiaPackages.mkDriver {
+        version = "535.154.05";
+        sha256_64bit = "sha256-fpUGXKprgt6SYRDxSCemGXLrEsIA6GOinp+0eGbqqJg=";
+        sha256_aarch64 = "sha256-G0/GiObf/BZMkzzET8HQjdIcvCSqB1uhsinro2HLK9k=";
+        openSha256 = "sha256-wvRdHguGLxS0mR06P5Qi++pDJBCF8pJ8hr4T8O6TJIo=";
+        settingsSha256 = "sha256-9wqoDEWY4I7weWW05F4igj1Gj9wjHsREFMztfEmqm10=";
+        persistencedSha256 = "sha256-d0Q3Lk80JqkS1B54Mahu2yY/WocOqFFbZVBh+ToGhaE=";
+
+        patches = [ rcu_patch ];
+      };
+    };
+  };
+}
diff --git a/modules/virtualization/default.nix b/modules/virtualization/default.nix
new file mode 100644
index 0000000..5a75009
--- /dev/null
+++ b/modules/virtualization/default.nix
@@ -0,0 +1,12 @@
+{ config, options, lib, pkgs, ... }:
+let
+  inherit (lib.modules) mkIf;
+in
+{
+  options.modules.virtualization = let
+    inherit (lib.options) mkEnableOption;
+  in
+  {
+    enable = mkEnableOption "enable virtualization";
+  };
+}
diff --git a/modules/virtualization/podman.nix b/modules/virtualization/podman.nix
new file mode 100644
index 0000000..268d67e
--- /dev/null
+++ b/modules/virtualization/podman.nix
@@ -0,0 +1,26 @@
+{ config, options, lib, pkgs, ... }:
+let
+  inherit (lib.modules) mkIf;
+
+  cfg = config.modules.virtualization.podman;
+in
+{
+  options.modules.virtualization.podman = let
+    inherit (lib.options) mkEnableOption;
+  in
+  {
+    enable = mkEnableOption "enable podman";
+  };
+
+  config = mkIf options.modules.virtualization.podman.enable {
+    virtualisation = {
+      containers.enable = true;
+
+      podman = {
+        enable = true;
+        dockerCompat = true;
+        defaultNetwork.settings.dns_enabled = true;
+      };
+    };
+  };
+}