{ config, pkgs, ... }:
{
  home = {
    username = "hms";
    homeDirectory = "/home/hms";

    # Packages
    packages =
      with pkgs;
      [
        # Utilities
        xz
        zip
        unzip
        ripgrep
        tealdeer
        zoxide
        just
        gnome-tweaks
        protonmail-bridge-gui
        xclip
        adw-gtk3
        nerd-fonts.adwaita-mono

        # Applications
        blackbox-terminal
        zotero
        zulip
        discord
        signal-desktop
        gapless
        newsflash
        gnome-solanum

        # Development
        ## Typst, LaTeX
        tinymist
        texliveFull

        ## Nix
        nixfmt-rfc-style
        nil
      ]
      ++ (with gnomeExtensions; [
        blur-my-shell
        clipboard-indicator
        rounded-window-corners-reborn
        runcat
        caffeine
        launch-new-instance
        light-style
      ]);

    # Bash configuration
    shell.enableBashIntegration = true;
    shellAliases = {
      ":q" = "exit";
      "h" = "hx";
      "o" = "xdg-open";
      "update" = "sudo nixos-rebuild switch --flake ~/dev/nixos";
    };

    # Custom files

    file."librewolf-gnome-theme" = {
      target = ".librewolf/default/chrome/librewolf-gnome-theme";
      source = fetchTarball {
        url = "https://github.com/rafaelmardojai/firefox-gnome-theme/archive/v143.tar.gz";
        sha256 = "1gkfi77n8cn5xzl3wi9mggh7adirjrsnbqygg1mcvjy0ynmd6kfh";
      };
    };

    stateVersion = "25.11";
  };

  programs.home-manager.enable = true;
  programs.taskwarrior = {
    enable = true;
    dataLocation = "${config.home.homeDirectory}/.local/share/task";
    colorTheme = "light-256";
    config.editor = "hx";
  };

  # Helix configuration
  programs.helix = {
    enable = true;
    defaultEditor = true;
    settings = {
      theme = "adwaita-light";
      editor = {
        lsp.display-messages = true;
        inline-diagnostics.cursor-line = "hint";
        rulers = [ 81 ];
        gutters.layout = [ "diagnostics" ];
      };
      keys.insert.j.k = "normal_mode";
    };
    languages = {
      language-server.tinymist = {
        config = {
          exportPdf = "onSave";
          outputPath = "$root/$dir/out/$name";
        };
      };
    };
  };
  programs.jujutsu = {
    enable = true;
    settings.user.name = "Henri Saudubray";
    settings.user.email = "henri.saudubray@proton.me";
    settings.ui.default-command = "log";
    settings.ui.diff-editor = ":builtin";
  };

  programs.firefox.enable = true;
  programs.librewolf = {
    enable = true;
    profiles.default = {
      name = "Default";
      settings = {
        "toolkit.legacyUserProfileCustomizations.stylesheets" = true;
        "svg.context-properties.content.enabled" = true;
        "gnomeTheme.hideSingleTab" = true;
      };
      userChrome = ''
        @import "librewolf-gnome-theme/userChrome.css";
        @import "librewolf-gnome-theme/theme/colors/dark.css";
      '';
    };
  };

  programs.bat.enable = true;
  programs.git = {
    enable = true;
    settings = {
      user = {
        email = "henri.saudubray@proton.me";
        name = "Henri Saudubray";
      };
      init.defaultBranch = "main";
    };
    signing = {
      format = "openpgp";
      signByDefault = true;
      key = "0x7065F57ED8856128";
    };
  };

  programs.bash = {
    enable = true;
    bashrcExtra = ''
      export PS1=" \W \[\e[33m\]λ\[\e[0m\] "
      task ls
      if [ "$(ls -A ~/dwn)" ]; then echo "TODO: organize downloads."; fi
    '';
  };

  programs.gpg.enable = true;

  programs.zoxide = {
    enable = true;
    enableBashIntegration = true;
    options = [ "--cmd cd" ];
  };

  programs.direnv = {
    enable = true;
    enableBashIntegration = true;
    nix-direnv.enable = true;
  };

  xdg.userDirs = {
    enable = true;
    # createDirectories = true;
    desktop = "${config.home.homeDirectory}/dsk";
    documents = "${config.home.homeDirectory}/doc";
    download = "${config.home.homeDirectory}/dwn";
    music = "${config.home.homeDirectory}/aud";
    pictures = "${config.home.homeDirectory}/img";
    publicShare = "${config.home.homeDirectory}/pub";
    templates = "${config.home.homeDirectory}/tpl";
    videos = "${config.home.homeDirectory}/vid";
  };

  ## FIXME: Find an alternative.
  # systemd.user.services.helix-theme = {
  #   Unit = {
  #     Description = "Helix System Colour Scheme Synchronisation Service";
  #     Documentation = "https://github.com/helix-editor/helix/issues/2158";
  #     After = "gnome-session.target";
  #   };
  #   Install.WantedBy = [ "gnome-session.target" ];
  #   Service = {
  #     Type = "simple";
  #     RestartSec = 5;
  #     Restart = "always";
  #     ExecStart =
  #       let
  #         update-script = pkgs.writeShellScript "helix-theme-update" ''
  #           set -eu -o pipefail
  #           if [ "$1" = "default" ]; then
  #             sed -i 's/theme = ".*"/theme = "adwaita-light"/' \
  #               $HOME/.config/helix/config.toml
  #           else
  #             sed -i 's/theme = ".*"/theme = "adwaita-dark"/' \
  #               $HOME/.config/helix/config.toml
  #           fi
  #           killall -s SIGUSR1 hx
  #         '';
  #       in
  #       "${pkgs.writeShellScript "helix-theme-monitor" ''
  #         gsettings monitor org.gnome.desktop.interface color-scheme \
  #           | xargs -L1 bash -c "source ${update-script}"
  #       ''}";
  #   };
  # };

  dconf.settings = {
    "org/gnome/TextEditor".keybindings = "vim";
    "org/gnome/shell" = {
      disable-user-extensions = false;
      enabled-extensions = [
        "clipboard-indicator@tudmotu.com"
        "rounded-window-corners@fxgn"
        "runcat@kolesnikov.se"
        "caffeine@patapon.info"
        "launch-new-instance@gnome-shell-extensions.gcampax.github.com"
      ];
    };
    "org/gnome/desktop/interface" = {
      gtk-theme = "adw-gtk3";
      show-battery-percentage = true;
    };
    "org/gnome/desktop/wm/preferences".button-layout = "appmenu:minimize,maximize,close";
    "org/gnome/desktop/wm/keybindings" = {
      switch-applications = [ "<Alt>grave" ];
      switch-applications-backwards = [ "<Shift><Alt>grave" ];
      switch-windows = [ "<Alt>Tab" ];
      switch-windows-backwards = [ "<Shift><Alt>Tab" ];
    };
    "org/gnome/settings-daemon/plugins/media-keys".custom-keybindings = [
      "/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0/"
      "/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom1/"
    ];
    "org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0" = {
      name = "Terminal";
      command = "blackbox";
      binding = "<Super>Return";
    };
    "org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom1" = {
      name = "Dark mode switcher";
      command = "${pkgs.writeShellScript "gnome-dark-mode-switcher" ''
        SCHEMA=org.gnome.desktop.interface
        KEY=color-scheme
        if [ "$(gsettings get "$SCHEMA" "$KEY")" = "'prefer-dark'" ]; then
          gsettings set "$SCHEMA" "$KEY" "prefer-light";
        else
          gsettings set "$SCHEMA" "$KEY" "prefer-dark";
        fi
      ''}";
      binding = "<Super>d";
    };
  };
}