add qtile configuration

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+#+title: QTile Configuration
+#+author: Preston Pan
+#+description: My personal qtile configuration to be used with NixOS
+#+date: [2026-03-25 Wed]
+#+language: en
+
+#+OPTIONS: broken-links:t
+#+PROPERTY: header-args :tangle yes :comments link
+
+* Introduction
+This is a QTile configuration meant to be a monolithic configuration of QTile along with widgets i.e. run launcher, bar, and notification panel.
+This enables the window manager to be integrated with these things entirely, making for a unified experience in terms of configuration, styling,
+and functionality.
+
+This configuration imports ~WALLPAPER~ and ~SOUND~ from my [[file:./nix.org][NixOS Configuration]], and therefore if you use this standalone you must replace those variables.
+* Imports
+We start with imports:
+#+begin_src python :tangle ../nix/qtile/config.py
+from paths import WALLPAPER, SOUND
+from libqtile import bar, layout, widget, qtile
+from libqtile.config import Key, Group, Screen, Click, Drag, Match
+from libqtile.lazy import lazy
+from libqtile.backend.wayland import InputConfig
+from qtile_extras.layout.decorations import RoundedCorners
+
+import re
+#+end_src
+We're using wayland because it's better.
+* Config
+#+begin_src python :tangle ../nix/qtile/config.py
+
+mod = "mod4"
+terminal = "kitty"
+wallpaper = WALLPAPER
+
+colors = {
+    "rosewater": "#f5e0dc",
+    "flamingo": "#f2cdcd",
+    "pink": "#f5c2e7",
+    "mauve": "#cba6f7",
+    "red": "#f38ba8",
+    "maroon": "#eba0ac",
+    "peach": "#fab387",
+    "yellow": "#f9e2af",
+    "green": "#a6e3a1",
+    "teal": "#94e2d5",
+    "sky": "#89dceb",
+    "sapphire": "#74c7ec",
+    "blue": "#89b4fa",
+    "lavender": "#b4befe",
+    "text": "#cdd6f4",
+    "subtext1": "#bac2de",
+    "subtext0": "#a6adc8",
+    "overlay2": "#9399b2",
+    "overlay1": "#7f849c",
+    "overlay0": "#6c7086",
+    "surface2": "#585b70",
+    "surface1": "#45475a",
+    "surface0": "#313244",
+    "base": "#1e1e2e",
+    "mantle": "#181825",
+    "crust": "#11111b",
+}
+
+workspace_keys = {
+    "1": "1",
+    "2": "2",
+    "3": "3",
+    "4": "4",
+    "5": "5",
+    "6": "6",
+    "7": "7",
+    "8": "8",
+    "9": "9",
+}
+
+groups = [
+    Group("1", matches=[Match(wm_class=re.compile(r"^emacs$", re.IGNORECASE))]),
+    Group("2", matches=[Match(wm_class=re.compile(r"(qutebrowser|org\.qutebrowser\.qutebrowser)", re.IGNORECASE))]),
+    Group(
+        "3",
+        matches=[
+            Match(wm_class=re.compile(r"^signal.*", re.IGNORECASE)),
+            Match(wm_class=re.compile(r"^element.*", re.IGNORECASE)),
+        ],
+    ),
+    Group("4", matches=[Match(wm_class=re.compile(r"(pavucontrol|org\.pulseaudio\.pavucontrol)", re.IGNORECASE))]),
+    Group("5"),
+    Group("6"),
+    Group("7"),
+    Group("8"),
+    Group("9"),
+]
+
+wl_input_rules = {
+    "type:keyboard": InputConfig(
+        kb_options="caps:escape",
+        kb_repeat_rate=50,
+        kb_repeat_delay=250,
+    ),
+
+    "type:pointer": InputConfig(
+        scroll_method="on_button_down",
+        scroll_button=276,  # Your exact trackball button code
+    ),
+}
+
+class QuietBattery(widget.Battery):
+    def poll(self):
+        try:
+            status = self._battery.update_status()
+        except RuntimeError:
+            return ""
+        return self.build_string(status)
+
+def logout():
+    qtile.stop()
+
+
+def reboot():
+    qtile.spawn("systemctl reboot")
+
+
+def shutdown():
+    qtile.spawn("systemctl poweroff")
+
+
+def workspace_bindings():
+    bindings = []
+    for group_name, key_name in workspace_keys.items():
+        bindings.append(Key([mod], key_name, lazy.group[group_name].toscreen()))
+        bindings.append(Key([mod, "shift"], key_name, lazy.window.togroup(group_name)))
+    return bindings
+
+
+keys = [
+    # apps / session
+    Key([mod], "Return", lazy.spawn(terminal)),
+    Key([mod], "d", lazy.spawncmd()),
+    Key([mod], "q", lazy.window.kill()),
+    Key([mod], "f", lazy.window.toggle_fullscreen()),
+    Key([mod], "Tab", lazy.next_layout()),
+    Key([mod, "control"], "r", lazy.reload_config()),
+    Key([mod], "t", lazy.window.toggle_floating()),
+
+    # focus
+    Key([mod], "h", lazy.layout.left()),
+    Key([mod], "j", lazy.layout.down()),
+    Key([mod], "k", lazy.layout.up()),
+    Key([mod], "l", lazy.layout.right()),
+
+    # move windows
+    Key([mod, "shift"], "h", lazy.layout.shuffle_left()),
+    Key([mod, "shift"], "j", lazy.layout.shuffle_down()),
+    Key([mod, "shift"], "k", lazy.layout.shuffle_up()),
+    Key([mod, "shift"], "l", lazy.layout.shuffle_right()),
+
+    # resize windows
+    Key([mod, "control"], "h", lazy.layout.grow_left()),
+    Key([mod, "control"], "j", lazy.layout.grow_down()),
+    Key([mod, "control"], "k", lazy.layout.grow_up()),
+    Key([mod, "control"], "l", lazy.layout.grow_right()),
+    Key([mod], "n", lazy.layout.normalize()),
+
+    # layout helpers
+    Key([mod], "space", lazy.layout.next()),
+    Key([mod, "shift"], "space", lazy.layout.toggle_split()),
+
+    # session shortcuts
+    Key([mod, "shift"], "q", lazy.shutdown()),
+    Key([mod, "control"], "Delete", lazy.spawn("systemctl reboot")),
+    Key([mod, "shift"], "Delete", lazy.spawn("systemctl poweroff")),
+
+    # app launchers
+    Key([mod], "e", lazy.spawn("emacs")),
+    Key([mod], "w", lazy.spawn("qutebrowser")),
+    Key([mod], "c", lazy.spawn("signal-desktop")),
+    Key([mod], "v", lazy.spawn("element-desktop")),
+    Key([mod], "s", lazy.spawn("pavucontrol")),
+
+    Key([], "XF86AudioPlay", lazy.spawn("mpc toggle")),
+    Key([], "XF86AudioNext", lazy.spawn("mpc next")),
+    Key([], "XF86AudioPrev", lazy.spawn("mpc prev")),
+    Key([], "XF86AudioStop", lazy.spawn("mpc stop")),
+
+    Key([], "XF86AudioRaiseVolume", lazy.spawn("wpctl set-volume -l 1.0 @DEFAULT_AUDIO_SINK@ 5%+")),
+    Key([], "XF86AudioLowerVolume", lazy.spawn("wpctl set-volume @DEFAULT_AUDIO_SINK@ 5%-")),
+    Key([], "XF86AudioMute", lazy.spawn("wpctl set-mute @DEFAULT_AUDIO_SINK@ toggle")),
+    Key([], "Print", lazy.spawn("sh -c 'grim ~/screenshot-$(date +%Y%m%d-%H%M%S).png'")),
+] + workspace_bindings()
+
+layouts = [
+    layout.Columns(
+        border_focus=colors["blue"],
+        border_normal=colors["surface0"],
+        
+        border_focus_stack=colors["mauve"],
+        border_normal_stack=colors["surface1"],
+        
+        border_width=3,
+        margin=8,
+        insert_position=1,
+    ),
+    layout.Max(
+        border_focus=colors["blue"],
+        border_normal=colors["surface0"],
+        border_width=3,
+        margin=8,
+    ),
+]
+
+widget_defaults = {
+    "font": "Iosevka Nerd Font",
+    "fontsize": 13,
+    "padding": 6,
+    "background": colors["mantle"],
+    "foreground": colors["text"],
+}
+extension_defaults = widget_defaults.copy()
+
+mouse = [
+    Drag(
+        [mod],
+        "Button1",
+        lazy.window.set_position_floating(),
+        start=lazy.window.get_position(),
+    ),
+    Drag(
+        [mod],
+        "Button3",
+        lazy.window.set_size_floating(),
+        start=lazy.window.get_size(),
+    ),
+    Click(
+        [mod],
+        "Button2",
+        lazy.window.bring_to_front(),
+    ),
+]
+
+
+def segment_icon(text, color, background=None, padding=8, font=None, fontsize=None):
+    return widget.TextBox(
+        text=text,
+        foreground=color,
+        background=background or colors["surface0"],
+        padding=padding,
+        font=font or "Iosevka Nerd Font",
+        fontsize=fontsize,
+    )
+
+
+def segment_sep(padding=6):
+    return widget.Sep(
+        linewidth=0,
+        padding=padding,
+        background=colors["mantle"],
+    )
+
+
+power_widget = widget.WidgetBox(
+    text_closed="󰐥",
+    text_open="󰐥",
+    close_button_location="right",
+    background=colors["mantle"],
+    font="Iosevka Nerd Font",
+    widgets=[
+        widget.TextBox(
+            text=" 󰑐 ",
+            foreground=colors["blue"],
+            background=colors["surface0"],
+            padding=8,
+            font="Iosevka Nerd Font",
+            mouse_callbacks={"Button1": reboot},
+        ),
+        widget.TextBox(
+            text=" 󰍃 ",
+            foreground=colors["mauve"],
+            background=colors["surface0"],
+            padding=8,
+            font="Iosevka Nerd Font",
+            mouse_callbacks={"Button1": logout},
+        ),
+        widget.TextBox(
+            text=" 󰐥 ",
+            foreground=colors["red"],
+            background=colors["surface0"],
+            padding=8,
+            font="Iosevka Nerd Font",
+            mouse_callbacks={"Button1": shutdown},
+        ),
+    ],
+)
+
+screens = [
+    Screen(
+        wallpaper=wallpaper,
+        wallpaper_mode="fill",
+        top=bar.Bar(
+            [
+                widget.GroupBox(
+                    font="Iosevka Nerd Font",
+                    fontsize=13,
+                    background=colors["mantle"],
+                    active=colors["text"],
+                    inactive=colors["overlay0"],
+                    highlight_method="line",
+                    highlight_color=[colors["mantle"], colors["mantle"]],
+                    this_current_screen_border=colors["lavender"],
+                    other_current_screen_border=colors["blue"],
+                    this_screen_border=colors["surface2"],
+                    other_screen_border=colors["surface1"],
+                    urgent_border=colors["red"],
+                    urgent_text=colors["red"],
+                    borderwidth=2,
+                    rounded=False,
+                    disable_drag=True,
+                    spacing=8,
+                    padding_x=8,
+                    padding_y=5,
+                    margin_y=2,
+                    margin_x=0,
+                ),
+                widget.Spacer(length=10),
+                widget.Prompt(
+                    name="prompt",
+                    prompt="❯ ",
+                    cursor_color=colors["blue"],
+                    foreground=colors["text"],
+                    background=colors["surface0"],
+                    padding=10,
+                    font="Iosevka Nerd Font",
+                ),
+                widget.Spacer(),
+
+                segment_icon("󰖙", colors["blue"]),
+                widget.Wttr(
+                    background=colors["surface0"],
+                    format="%l: %t %C",
+                    update_interval=1800,
+                    font="Iosevka Nerd Font",
+                    foreground=colors["teal"],
+                ),
+                segment_sep(),
+
+                segment_icon("󰎆", colors["green"]),
+                widget.Mpd2(
+                    background=colors["surface0"],
+                    foreground=colors["green"],
+                    status_format="{play_status} {artist} - {title}",
+                    idle_format=" idle",
+                    idle_message="idle",
+                    max_chars=40,
+                    padding=10,
+                    hide_crash=True,
+                    font="Iosevka Nerd Font",
+                ),
+                segment_sep(),
+
+                segment_icon("󰂄", colors["yellow"]),
+                QuietBattery(
+                    background=colors["surface0"],
+                    foreground=colors["yellow"],
+                    format="{percent:2.0%}",
+                    charge_char="󰂄",
+                    discharge_char="󰁹",
+                    full_char="󰁹",
+                    empty_char="󰂎",
+                    update_interval=30,
+                    padding=10,
+                    font="Iosevka Nerd Font",
+                ),
+                segment_sep(),
+
+                segment_icon("󰂚", colors["peach"]),
+                widget.Notify(
+                    foreground=colors["peach"],
+                    background=colors["surface0"],
+                    default_timeout=10,
+                    audiofile=SOUND,
+                    padding=10,
+                    font="Iosevka Nerd Font",
+                ),
+                segment_sep(),
+
+                segment_icon("󰃭", colors["lavender"]),
+                widget.Clock(
+                    format="%a %d %b",
+                    foreground=colors["lavender"],
+                    background=colors["surface0"],
+                    padding=10,
+                    font="Lora",
+                ),
+                segment_icon("󰥔", colors["blue"]),
+                widget.Clock(
+                    format="%H:%M",
+                    foreground=colors["blue"],
+                    background=colors["surface0"],
+                    padding=10,
+                    font="Iosevka Nerd Font",
+                ),
+
+                widget.Spacer(length=10),
+                power_widget,
+                widget.Spacer(length=10),
+            ],
+            30,
+            margin=[8, 10, 0, 10],
+            background=colors["mantle"],
+            opacity=0.97,
+        ),
+    ),
+]
+
+follow_mouse_focus = True
+bring_front_click = False
+cursor_warp = False
+auto_fullscreen = True
+auto_minimize = True
+wmname = "Qtile"
+#+end_src