configuration.nix

configuration.nix

{ config, pkgs, lib, ... }:

{
  # Import disko module
  imports = [
    (fetchTarball "https://github.com/nix-community/disko/archive/master.tar.gz")
  ];

  # Bootloader configuration
  boot.loader.grub.enable = true;
  boot.loader.grub.version = 2;
  boot.loader.grub.device = "/dev/sda"; # Install GRUB to the SSD

  # Declarative Partitioning
  disko.devices = {
    disk = {
      sda = {
        device = "/dev/sda";
        type = "disk";
        content = {
          type = "gpt";
          partitions = {
            boot = {
              size = "1M";
              type = "EF02"; # for GRUB MBR
            };
            root = {
              size = "100%";
              content = {
                type = "filesystem";
                format = "ext4";
                mountpoint = "/";
              };
            };
          };
        };
      };
      sdb = {
        device = "/dev/sdb";
        type = "disk";
        content = {
          type = "gpt";
          partitions = {
            swap = {
              size = "16G";  # Fixed swap size
              content = {
                type = "swap";
                randomEncryption = true;
              };
            };
            home = {
              size = "100%";  # Use remaining space for home
              content = {
                type = "filesystem";
                format = "ext4";
                mountpoint = "/home";
              };
            };
          };
        };
      };
    };
  };

  # Networking
  networking = {
    hostName = "chisel";
    networkmanager.enable = true;
  };

  # Set your time zone
  time.timeZone = "America/Los_Angeles";

  # Enable X11 windowing system and i3 window manager
  services.xserver = {
    enable = true;
    displayManager.lightdm.enable = true;
    windowManager.i3 = {
      enable = true;
      extraPackages = with pkgs; [
        dmenu
        i3status
        i3lock
        i3blocks
      ];
    };
  };

  # Configure i3 with some sane defaults (similar to Regolith)
  environment.etc."i3/config".text = ''
    # Use Windows key as mod
    set $mod Mod4

    # Font for window titles and bar
    font pango:FiraCode Nerd Font 10

    # Use Mouse+$mod to drag floating windows
    floating_modifier $mod

    # Start a terminal
    bindsym $mod+Return exec ${pkgs.kitty}/bin/kitty

    # Kill focused window
    bindsym $mod+Shift+q kill

    # Start dmenu (a program launcher)
    bindsym $mod+d exec ${pkgs.dmenu}/bin/dmenu_run

    # Change focus
    bindsym $mod+Left focus left
    bindsym $mod+Down focus down
    bindsym $mod+Up focus up
    bindsym $mod+Right focus right

    # Move focused window
    bindsym $mod+Shift+Left move left
    bindsym $mod+Shift+Down move down
    bindsym $mod+Shift+Up move up
    bindsym $mod+Shift+Right move right

    # Split in horizontal orientation
    bindsym $mod+h split h

    # Split in vertical orientation
    bindsym $mod+v split v

    # Enter fullscreen mode for the focused container
    bindsym $mod+f fullscreen toggle

    # Change container layout (stacked, tabbed, toggle split)
    bindsym $mod+s layout stacking
    bindsym $mod+w layout tabbed
    bindsym $mod+e layout toggle split

    # Toggle tiling / floating
    bindsym $mod+Shift+space floating toggle

    # Change focus between tiling / floating windows
    bindsym $mod+space focus mode_toggle

    # Focus the parent container
    bindsym $mod+a focus parent

    # Define names for default workspaces
    set $ws1 "1"
    set $ws2 "2"
    set $ws3 "3"
    set $ws4 "4"
    set $ws5 "5"
    set $ws6 "6"
    set $ws7 "7"
    set $ws8 "8"
    set $ws9 "9"
    set $ws10 "10"

    # Switch to workspace
    bindsym $mod+1 workspace number $ws1
    bindsym $mod+2 workspace number $ws2
    bindsym $mod+3 workspace number $ws3
    bindsym $mod+4 workspace number $ws4
    bindsym $mod+5 workspace number $ws5
    bindsym $mod+6 workspace number $ws6
    bindsym $mod+7 workspace number $ws7
    bindsym $mod+8 workspace number $ws8
    bindsym $mod+9 workspace number $ws9
    bindsym $mod+0 workspace number $ws10

    # Move focused container to workspace
    bindsym $mod+Shift+1 move container to workspace number $ws1
    bindsym $mod+Shift+2 move container to workspace number $ws2
    bindsym $mod+Shift+3 move container to workspace number $ws3
    bindsym $mod+Shift+4 move container to workspace number $ws4
    bindsym $mod+Shift+5 move container to workspace number $ws5
    bindsym $mod+Shift+6 move container to workspace number $ws6
    bindsym $mod+Shift+7 move container to workspace number $ws7
    bindsym $mod+Shift+8 move container to workspace number $ws8
    bindsym $mod+Shift+9 move container to workspace number $ws9
    bindsym $mod+Shift+0 move container to workspace number $ws10

    # Reload the configuration file
    bindsym $mod+Shift+c reload

    # Restart i3 inplace
    bindsym $mod+Shift+r restart

    # Exit i3
    bindsym $mod+Shift+e exec "i3-nagbar -t warning -m 'Do you really want to exit i3?' -B 'Yes, exit i3' 'i3-msg exit'"

    # Resize window mode
    mode "resize" {
        bindsym Left resize shrink width 10 px or 10 ppt
        bindsym Down resize grow height 10 px or 10 ppt
        bindsym Up resize shrink height 10 px or 10 ppt
        bindsym Right resize grow width 10 px or 10 ppt

        bindsym Return mode "default"
        bindsym Escape mode "default"
        bindsym $mod+r mode "default"
    }

    bindsym $mod+r mode "resize"

    # Start i3bar to display a workspace bar
    bar {
        status_command i3status
    }
  '';

  # Define a user account
  users.users.cedar = {
    isNormalUser = true;
    extraGroups = [ "wheel" "networkmanager" "docker" ];
    initialPassword = "changeme";
  };

  # Allow unfree packages
  nixpkgs.config.allowUnfree = true;

  # List packages installed in system profile
  environment.systemPackages = with pkgs; [
    # Editors
    neovim
    vscode

    # Web browsers
    firefox

    # Communication
    discord

    # Utilities
    wget
    curl
    git
    gh
    azure-cli
    docker
    kitty

    # Development tools
    gcc
    gdb
    cmake
    gnumake
    clang
    clang-tools

    # Dropbox
    dropbox

    # SSH
    openssh
  ];

  # Docker configuration
  virtualisation.docker.enable = true;

  # SSH server configuration
  services.openssh = {
    enable = true;
    settings = {
      PermitRootLogin = "no";
      PasswordAuthentication = false;
    };
  };

  # Fonts configuration
  fonts.packages = with pkgs; [
    (nerdfonts.override { fonts = [ "FiraCode" ]; })
  ];

  # 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.
  system.stateVersion = "23.11"; # Edit this to match your NixOS version
}