diff --git a/README.md b/README.md
index 1574bd5..7e0dc6a 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,6 @@ This avoids drift from letting two outputs auto-adjust independently.
 - Internal display controlled with `brightnessctl`
 - External monitor mirrored with `ddcutil` VCP code `10`
 - Compact GTK4/libadwaita OSD for custom brightness shortcuts
-- Debounced brightness changes: fast repeated key presses become one final jump
 - Optional Wayland top-edge positioning with `gtk4-layer-shell`
 - systemd user service for continuous external sync
 - Configurable backlight device, DDC bus, monitor model, step size, and sync interval
@@ -54,7 +53,6 @@ The installer writes:
 
 ```text
 ~/.local/bin/brightness-osd
-~/.local/bin/brightness-step
 ~/.local/bin/brightness-up-all
 ~/.local/bin/brightness-down-all
 ~/.local/bin/brightness-sync-hg342pcb
@@ -91,11 +89,8 @@ BRIGHTNESS_DDCUTIL_BUS="16"
 BRIGHTNESS_SYNC_INTERVAL="1"
 BRIGHTNESS_SYNC_MIN_PERCENT="1"
 BRIGHTNESS_OSD_VISIBLE_MS="1400"
-BRIGHTNESS_APPLY_DEBOUNCE_MS="180"
 ```
 
-`BRIGHTNESS_APPLY_DEBOUNCE_MS` controls how long the scripts wait for another key press before applying the final brightness. The OSD updates immediately to the target value, but `brightnessctl` runs only once at the end of a quick key-press burst.
-
 After changing DDC or sync values:
 
 ```bash
diff --git a/bin/brightness-down-all b/bin/brightness-down-all
index 1752e4a..e7b1a69 100755
--- a/bin/brightness-down-all
+++ b/bin/brightness-down-all
@@ -7,4 +7,8 @@ if [[ -f "$CONFIG" ]]; then
   source "$CONFIG"
 fi
 
-"$HOME/.local/bin/brightness-step" down
+BACKLIGHT_DEVICE="${BRIGHTNESS_BACKLIGHT_DEVICE:-intel_backlight}"
+STEP="${BRIGHTNESS_STEP:-10}"
+
+brightnessctl -q -d "$BACKLIGHT_DEVICE" set "${STEP}%-"
+"$HOME/.local/bin/brightness-osd" || true
diff --git a/bin/brightness-step b/bin/brightness-step
deleted file mode 100755
index 12a0d94..0000000
--- a/bin/brightness-step
+++ /dev/null
@@ -1,92 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-CONFIG="${BRIGHTNESS_AUTOMATION_CONFIG:-$HOME/.config/brightness-automation/env}"
-if [[ -f "$CONFIG" ]]; then
-  # shellcheck disable=SC1090
-  source "$CONFIG"
-fi
-
-BACKLIGHT_DEVICE="${BRIGHTNESS_BACKLIGHT_DEVICE:-intel_backlight}"
-BACKLIGHT_PATH="${BRIGHTNESS_SYNC_BACKLIGHT:-/sys/class/backlight/${BACKLIGHT_DEVICE}}"
-STEP="${BRIGHTNESS_STEP:-10}"
-DEBOUNCE_MS="${BRIGHTNESS_APPLY_DEBOUNCE_MS:-180}"
-STATE_DIR="${XDG_RUNTIME_DIR:-/tmp}/brightness-automation"
-STATE_FILE="$STATE_DIR/target-percent"
-STAMP_FILE="$STATE_DIR/target-stamp"
-LOCK_FILE="$STATE_DIR/lock"
-
-mkdir -p "$STATE_DIR"
-
-read_current_percent() {
-  local current max
-  current="$(<"${BACKLIGHT_PATH}/brightness")"
-  max="$(<"${BACKLIGHT_PATH}/max_brightness")"
-  printf '%s\n' "$(( (current * 100 + max / 2) / max ))"
-}
-
-clamp_percent() {
-  local value="$1"
-  if (( value < 1 )); then
-    value=1
-  elif (( value > 100 )); then
-    value=100
-  fi
-  printf '%s\n' "$value"
-}
-
-now_ms() {
-  date +%s%3N
-}
-
-apply_after_quiet_period() {
-  while true; do
-    sleep "$(awk "BEGIN { printf \"%.3f\", ${DEBOUNCE_MS} / 1000 }")"
-
-    local now stamp age target
-    now="$(now_ms)"
-    stamp="$(<"$STAMP_FILE")"
-    age="$(( now - stamp ))"
-
-    if (( age >= DEBOUNCE_MS )); then
-      target="$(<"$STATE_FILE")"
-      brightnessctl -q -d "$BACKLIGHT_DEVICE" set "${target}%"
-      exit 0
-    fi
-  done
-}
-
-if [[ "${1:-}" == "--apply-worker" ]]; then
-  apply_after_quiet_period
-fi
-
-if [[ "$#" -ne 1 || ! "$1" =~ ^(up|down)$ ]]; then
-  echo "Usage: $(basename "$0") up|down" >&2
-  exit 2
-fi
-
-(
-  flock 9
-
-  current="$(read_current_percent)"
-  if [[ -f "$STATE_FILE" ]]; then
-    base="$(<"$STATE_FILE")"
-  else
-    base="$current"
-  fi
-
-  case "$1" in
-    up) target="$(( base + STEP ))" ;;
-    down) target="$(( base - STEP ))" ;;
-  esac
-
-  target="$(clamp_percent "$target")"
-  printf '%s\n' "$target" >"$STATE_FILE"
-  now_ms >"$STAMP_FILE"
-
-  "$HOME/.local/bin/brightness-osd" "$target" || true
-) 9>"$LOCK_FILE"
-
-if ! pgrep -f "$HOME/.local/bin/brightness-step --apply-worker" >/dev/null 2>&1; then
-  nohup "$HOME/.local/bin/brightness-step" --apply-worker >/dev/null 2>&1 &
-fi
diff --git a/bin/brightness-up-all b/bin/brightness-up-all
index 20fc67a..27a9daa 100755
--- a/bin/brightness-up-all
+++ b/bin/brightness-up-all
@@ -7,4 +7,8 @@ if [[ -f "$CONFIG" ]]; then
   source "$CONFIG"
 fi
 
-"$HOME/.local/bin/brightness-step" up
+BACKLIGHT_DEVICE="${BRIGHTNESS_BACKLIGHT_DEVICE:-intel_backlight}"
+STEP="${BRIGHTNESS_STEP:-10}"
+
+brightnessctl -q -d "$BACKLIGHT_DEVICE" set "+${STEP}%"
+"$HOME/.local/bin/brightness-osd" || true
diff --git a/install.sh b/install.sh
index 9777fed..ded9cf4 100755
--- a/install.sh
+++ b/install.sh
@@ -17,7 +17,6 @@ install -d "$HOME/.config/systemd/user"
 install -d "$HOME/.config/brightness-automation"
 
 install -m 0755 "$ROOT/bin/brightness-osd" "$HOME/.local/bin/brightness-osd"
-install -m 0755 "$ROOT/bin/brightness-step" "$HOME/.local/bin/brightness-step"
 install -m 0755 "$ROOT/bin/brightness-up-all" "$HOME/.local/bin/brightness-up-all"
 install -m 0755 "$ROOT/bin/brightness-down-all" "$HOME/.local/bin/brightness-down-all"
 install -m 0755 "$ROOT/bin/brightness-sync-hg342pcb" "$HOME/.local/bin/brightness-sync-hg342pcb"
@@ -34,7 +33,6 @@ BRIGHTNESS_DDCUTIL_BUS="$DDC_BUS"
 BRIGHTNESS_SYNC_INTERVAL="$INTERVAL"
 BRIGHTNESS_SYNC_MIN_PERCENT="$MIN_PERCENT"
 BRIGHTNESS_OSD_VISIBLE_MS="1400"
-BRIGHTNESS_APPLY_DEBOUNCE_MS="180"
 EOF
 fi
 
diff --git a/uninstall.sh b/uninstall.sh
index 2d23f74..08d09e7 100755
--- a/uninstall.sh
+++ b/uninstall.sh
@@ -4,7 +4,6 @@ set -euo pipefail
 systemctl --user disable --now external-brightness-sync.service 2>/dev/null || true
 rm -f "$HOME/.config/systemd/user/external-brightness-sync.service"
 rm -f "$HOME/.local/bin/brightness-osd"
-rm -f "$HOME/.local/bin/brightness-step"
 rm -f "$HOME/.local/bin/brightness-up-all"
 rm -f "$HOME/.local/bin/brightness-down-all"
 rm -f "$HOME/.local/bin/brightness-sync-hg342pcb"