feat(umbriel): add compositor configuration and keybindings

dot_config/umbriel/config.toml

@@ -0,0 +1,101 @@
+# Umbriel — scrolling compositor paired with the Noctalia shell.
+# Reference: https://docs.noctalia.dev/umbriel/ · check: `umbriel config validate`
+#
+# Ported from the niri config (layout, rules, binds) plus Hyprland's named
+# scratch workspaces, which map onto Umbriel scratchpads (rules.toml). Noctalia
+# replaces vicinae, cliphist, and polkit-gnome: its launcher, clipboard history,
+# and polkit agent run inside the one shell process.
+#
+# Included files apply in list order, this file last. Paths resolve against the
+# symlink in ~/.config/umbriel, not the chezmoi source.
+
+[include]
+files = ["outputs.toml", "rules.toml", "binds.toml"]
+
+# Theme colors, written by Noctalia's umbriel template on every theme change
+# (not managed by chezmoi). Its post-hook keeps this entry last in the list.
+[include.optional]
+files = ["noctalia.toml"]
+
+[general]
+# Noctalia brings bar, launcher, notifications, clipboard history, and the
+# polkit agent; nothing else is started.
+autostart = ["noctalia"]
+show_cheatsheet = false
+
+# Umbriel owns XDG_CURRENT_DESKTOP and the session variables.
+[environment]
+ELECTRON_OZONE_PLATFORM_HINT = "auto"
+QT_QPA_PLATFORM = "wayland"
+QT_QPA_PLATFORMTHEME = "kde"
+QT_STYLE_OVERRIDE = "Darkly"
+
+[input.keyboard]
+layout = "us"
+repeat_delay = 400
+repeat_rate = 50
+numlock_toggle = true
+
+[input.touchpad]
+natural_scroll = true
+tap = true
+tap_button_map = "left_right_middle"
+sensitivity = 1.0
+
+[input.tablet]
+map_to_output = "eDP-1"
+
+[input.touch]
+map_to_output = "eDP-1"
+
+[input.cursor]
+theme = "capitaine-cursors-light"
+size = 24
+hide_when_typing = true
+
+[layout]
+gap = 8
+extent_presets = [0.333, 0.5, 0.667]
+
+[layout.scrolling]
+default_extent_fraction = 0.5
+center_focused = "never"
+center_underfull_strip = true
+
+[appearance]
+corner_radius = 10
+
+# Optimized blur samples only the wallpaper: cheaper than blurring the windows
+# behind each translucent surface.
+[appearance.blur]
+radius = 3
+
+[appearance.tab_bar]
+hide_when_single = true
+
+[overview]
+zoom = 0.4
+
+# niri's springs: under-damped, high stiffness — short settle, slight overshoot.
+[animation.windows_in]
+curve = "spring:0.82,1125"
+
+[animation.windows_out]
+curve = "spring:0.88,2025"
+
+[animation.windows_move]
+curve = "spring:0.85,1463"
+
+[animation.workspaces]
+curve = "spring:0.78,1350"
+
+[animation.overview]
+curve = "spring:0.85,1463"
+workspace_curve = "spring:0.78,1350"
+
+# Hyprland's special workspaces show their app tiled over the whole output
+# above a dimmed desktop; maximize is the scratchpad equivalent.
+[animation.scratchpad]
+curve = "spring:0.85,1463"
+dim = 0.6
+maximize = true