diff --git a/add-zsh-helper.sh b/add-zsh-helper.sh
deleted file mode 100644
index 92b1a8e..0000000
--- a/add-zsh-helper.sh
+++ /dev/null
@@ -1,188 +0,0 @@
-#!/usr/bin/env bash
-# Installs ffx Zsh wrappers globally via ~/.ffx.zshrc.snippet.
-# Prompts for ffx.sh's directory, validates it, or tries to find it automatically.
-
-set -euo pipefail
-
-SNIPPET="$HOME/.ffx.zshrc.snippet"
-ZSHRC="$HOME/.zshrc"
-
-find_ffx() {
-  local found
-
-  # First check the current directory.
-  if [[ -f "./ffx.sh" ]]; then
-    printf '%s\n' "$(cd . && pwd)/ffx.sh"
-    return 0
-  fi
-
-  # Search common locations, excluding slow/system-wide paths.
-  found="$(
-    find "$HOME/Desktop" "$HOME/Downloads" "$HOME/Documents" "$HOME" \
-      -maxdepth 5 \
-      -type f \
-      -name 'ffx.sh' \
-      -print 2>/dev/null |
-      head -n 1 || true
-  )"
-
-  [[ -n "$found" ]] || return 1
-  printf '%s\n' "$found"
-}
-
-echo "ffx.sh installer"
-echo
-
-read -r -p "Directory containing ffx.sh (Enter to auto-find): " FFX_DIR
-
-if [[ -n "$FFX_DIR" ]]; then
-  FFX_DIR="${FFX_DIR/#\~/$HOME}"
-  FFX_SCRIPT="$FFX_DIR/ffx.sh"
-else
-  echo "Searching for ffx.sh..."
-  FFX_SCRIPT="$(find_ffx || true)"
-
-  if [[ -z "$FFX_SCRIPT" ]]; then
-    echo "Could not automatically find ffx.sh."
-    read -r -p "Enter the full path to ffx.sh: " FFX_SCRIPT
-    FFX_SCRIPT="${FFX_SCRIPT/#\~/$HOME}"
-  else
-    echo "Found: $FFX_SCRIPT"
-  fi
-fi
-
-if [[ -d "$FFX_SCRIPT" ]]; then
-  FFX_SCRIPT="$FFX_SCRIPT/ffx.sh"
-fi
-
-if [[ ! -f "$FFX_SCRIPT" ]]; then
-  echo "Error: ffx.sh was not found at:"
-  echo "  $FFX_SCRIPT"
-  exit 1
-fi
-
-if [[ ! -x "$FFX_SCRIPT" ]]; then
-  echo "Making ffx.sh executable..."
-  chmod +x "$FFX_SCRIPT"
-fi
-
-if [[ ! -x "$FFX_SCRIPT" ]]; then
-  echo "Error: ffx.sh is not executable:"
-  echo "  $FFX_SCRIPT"
-  exit 1
-fi
-
-if ! "$FFX_SCRIPT" --version >/dev/null 2>&1; then
-  echo "Error: ffx.sh exists but could not run successfully:"
-  echo "  $FFX_SCRIPT"
-  echo
-  echo "Try manually:"
-  echo "  \"$FFX_SCRIPT\" --version"
-  exit 1
-fi
-
-FFX_SCRIPT="$(cd "$(dirname "$FFX_SCRIPT")" && pwd)/ffx.sh"
-
-echo "Using ffx.sh:"
-echo "  $FFX_SCRIPT"
-
-# Write / replace the separate Zsh snippet.
-cat > "$SNIPPET" <<EOF
-# --- ffx zsh wrappers ---
-# Generated by install-ffx-zsh.sh
-FFX_SCRIPT="$FFX_SCRIPT"
-
-# star.mp3 -> star333033.mp3
-ffx_output_name() {
-  local input="\$1"
-  local dir base ext hash
-
-  dir="\${input:h}"
-  base="\${input:t}"
-
-  if [[ "\$base" == *.* && "\$base" != .* ]]; then
-    ext=".\${base##*.}"
-    base="\${base%.*}"
-  else
-    ext=""
-  fi
-
-  hash="\$(printf '%06d' "\$(( (RANDOM << 1 ^ RANDOM) % 1000000 ))")"
-  print -r -- "\${dir}/\${base}\${hash}\${ext}"
-}
-
-bass() {
-  local input="\$1" percent="\$2" fine_db="\$3"
-  local output="\${4:-\$(ffx_output_name "\$input")}"
-  "\$FFX_SCRIPT" bass "\$input" "\$percent" "\$fine_db" "\$output"
-}
-
-treble() {
-  local input="\$1" percent="\$2" fine_db="\$3"
-  local output="\${4:-\$(ffx_output_name "\$input")}"
-  "\$FFX_SCRIPT" treble "\$input" "\$percent" "\$fine_db" "\$output"
-}
-
-volume() {
-  local input="\$1" db="\$2"
-  local output="\${3:-\$(ffx_output_name "\$input")}"
-  "\$FFX_SCRIPT" volume "\$input" "\$db" "\$output"
-}
-
-distort() {
-  local input="\$1" drive="\${2:-2}"
-  local output="\${3:-\$(ffx_output_name "\$input")}"
-  "\$FFX_SCRIPT" distort "\$input" "\$drive" "\$output"
-}
-
-trim() {
-  local input="\$1" start="\$2" end="\$3"
-  local output="\${4:-\$(ffx_output_name "\$input")}"
-  "\$FFX_SCRIPT" trim "\$input" "\$start" "\$end" "\$output"
-}
-
-tempo() {
-  local input="\$1" speed="\$2"
-  local output="\${3:-\$(ffx_output_name "\$input")}"
-  "\$FFX_SCRIPT" tempo "\$input" "\$speed" "\$output"
-}
-
-pitch() {
-  local input="\$1" semitones="\$2"
-  local output="\${3:-\$(ffx_output_name "\$input")}"
-  "\$FFX_SCRIPT" pitch "\$input" "\$semitones" "\$output"
-}
-
-bassboost() {
-  local input="\$1"
-  local output="\${2:-\$(ffx_output_name "\$input")}"
-  "\$FFX_SCRIPT" bass "\$input" 5 1 "\$output"
-}
-
-grunge() {
-  local input="\$1"
-  local output="\${2:-\$(ffx_output_name "\$input")}"
-  "\$FFX_SCRIPT" distort "\$input" 2 "\$output"
-}
-EOF
-
-touch "$ZSHRC"
-
-grep -qxF 'source "$HOME/.ffx.zshrc.snippet"' "$ZSHRC" ||
-  printf '\nsource "$HOME/.ffx.zshrc.snippet"\n' >> "$ZSHRC"
-
-if [[ -n "${ZSH_VERSION:-}" ]]; then
-  source "$ZSHRC"
-fi
-
-echo
-echo "installed helper: $SNIPPET"
-echo "added lines to: $ZSHRC"
-echo
-echo "reload your current zsh session with:"
-echo "  source ~/.zshrc"
-echo
-echo "examples:"
-echo "  bassboost ~/Music/song.mp3"
-echo "  grunge ~/Music/song.mp3"
-echo "  tempo ~/Music/song.mp3 1.5"