diff --git a/scripts/agent.sh b/scripts/agent.sh
deleted file mode 100755
index 1de01806..00000000
--- a/scripts/agent.sh
+++ /dev/null
@@ -1,369 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-# Unified background agent script for YAZE (macOS launchd, Linux systemd)
-# Subcommands:
-#   install [--build-type X] [--use-inotify] [--ubuntu-bootstrap] [--enable-linger]
-#   uninstall
-#   run-once        # one-shot build & test
-#   watch           # linux: inotify-based watch loop
-
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-PROJECT_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
-
-BUILD_DIR_DEFAULT="${PROJECT_ROOT}/build"
-BUILD_TYPE_DEFAULT="Debug"
-
-usage() {
-  cat <<EOF
-Usage: $0 <subcommand> [options]
-
-Subcommands:
-  install            Install background agent
-    --build-type X       CMake build type (default: ${BUILD_TYPE_DEFAULT})
-    --use-inotify        Linux: use long-lived inotify watcher
-    --ubuntu-bootstrap   Install Ubuntu deps via apt (sudo)
-    --enable-linger      Enable user lingering (Linux)
-
-  uninstall          Remove installed background agent
-
-  run-once           One-shot build and test
-    env: BUILD_DIR, BUILD_TYPE
-
-  watch              Linux: inotify-based watch loop
-    env: BUILD_DIR, BUILD_TYPE, INTERVAL_SECONDS (fallback)
-
-Environment:
-  BUILD_DIR   Build directory (default: ${BUILD_DIR_DEFAULT})
-  BUILD_TYPE  CMake build type (default: ${BUILD_TYPE_DEFAULT})
-EOF
-}
-
-build_and_test() {
-  local build_dir="${BUILD_DIR:-${BUILD_DIR_DEFAULT}}"
-  local build_type="${BUILD_TYPE:-${BUILD_TYPE_DEFAULT}}"
-  local log_file="${LOG_FILE:-"${build_dir}/yaze_agent.log"}"
-
-  mkdir -p "${build_dir}"
-  {
-    echo "==== $(date '+%Y-%m-%d %H:%M:%S') | yaze agent run (type=${build_type}) ===="
-    echo "Project: ${PROJECT_ROOT}"
-
-    cmake -S "${PROJECT_ROOT}" -B "${build_dir}" -DCMAKE_BUILD_TYPE="${build_type}"
-    cmake --build "${build_dir}" --config "${build_type}" -j
-
-    if [[ -x "${build_dir}/bin/yaze_test" ]]; then
-      "${build_dir}/bin/yaze_test"
-    else
-      if command -v ctest >/dev/null 2>&1; then
-        ctest --test-dir "${build_dir}" --output-on-failure
-      else
-        echo "ctest not found and test binary missing. Skipping tests." >&2
-        exit 1
-      fi
-    fi
-  } >>"${log_file}" 2>&1
-}
-
-sub_run_once() {
-  build_and_test
-}
-
-sub_watch() {
-  local build_dir="${BUILD_DIR:-${BUILD_DIR_DEFAULT}}"
-  local build_type="${BUILD_TYPE:-${BUILD_TYPE_DEFAULT}}"
-  local interval="${INTERVAL_SECONDS:-5}"
-  mkdir -p "${build_dir}"
-  if command -v inotifywait >/dev/null 2>&1; then
-    echo "[agent] using inotifywait watcher"
-    while true; do
-      BUILD_DIR="${build_dir}" BUILD_TYPE="${build_type}" build_and_test || true
-      inotifywait -r -e modify,create,delete,move \
-        "${PROJECT_ROOT}/src" \
-        "${PROJECT_ROOT}/test" \
-        "${PROJECT_ROOT}/CMakeLists.txt" \
-        "${PROJECT_ROOT}/src/CMakeLists.txt" >/dev/null 2>&1 || true
-    done
-  else
-    echo "[agent] inotifywait not found; running periodic loop (${interval}s)"
-    while true; do
-      BUILD_DIR="${build_dir}" BUILD_TYPE="${build_type}" build_and_test || true
-      sleep "${interval}"
-    done
-  fi
-}
-
-ensure_exec() {
-  if [[ ! -x "$1" ]]; then
-    chmod +x "$1"
-  fi
-}
-
-ubuntu_bootstrap() {
-  if command -v apt-get >/dev/null 2>&1; then
-    sudo apt-get update
-    sudo apt-get install -y inotify-tools build-essential cmake ninja-build pkg-config \
-      libsdl2-dev libglew-dev libwavpack-dev libabsl-dev \
-      libboost-all-dev libboost-python-dev python3-dev libpython3-dev
-  else
-    echo "apt-get not found; skipping Ubuntu bootstrap" >&2
-  fi
-}
-
-enable_linger_linux() {
-  if command -v loginctl >/dev/null 2>&1; then
-    if sudo -n true 2>/dev/null; then
-      sudo loginctl enable-linger "$USER" || true
-    else
-      echo "Note: enabling linger may require sudo: sudo loginctl enable-linger $USER" >&2
-    fi
-  fi
-}
-
-# Wrapper to run systemctl --user with a session bus in headless shells
-systemctl_user() {
-  # Only apply on Linux
-  if [[ "$(uname -s)" != "Linux" ]]; then
-    systemctl "$@"
-    return
-  fi
-  local uid
-  uid="$(id -u)"
-  export XDG_RUNTIME_DIR="${XDG_RUNTIME_DIR:-/run/user/${uid}}"
-  export DBUS_SESSION_BUS_ADDRESS="${DBUS_SESSION_BUS_ADDRESS:-unix:path=${XDG_RUNTIME_DIR}/bus}"
-  if [[ ! -S "${XDG_RUNTIME_DIR}/bus" ]]; then
-    echo "[agent] Warning: user bus not found at ${XDG_RUNTIME_DIR}/bus. If this fails, run: sudo loginctl enable-linger $USER" >&2
-  fi
-  systemctl --user "$@"
-}
-
-is_systemd_available() {
-  # True if systemd is PID 1 and systemctl exists and a user bus likely available
-  if [[ ! -d /run/systemd/system ]]; then
-    return 1
-  fi
-  if ! command -v systemctl >/dev/null 2>&1; then
-    return 1
-  fi
-  return 0
-}
-
-start_userland_agent() {
-  local build_type="${1}"
-  local build_dir="${2}"
-  local agent_home="$HOME/.local/share/yaze-agent"
-  mkdir -p "${agent_home}"
-  local log_file="${agent_home}/agent.log"
-  nohup env BUILD_TYPE="${build_type}" BUILD_DIR="${build_dir}" "${SCRIPT_DIR}/agent.sh" watch >>"${log_file}" 2>&1 & echo $! > "${agent_home}/agent.pid"
-  echo "Userland agent started (PID $(cat "${agent_home}/agent.pid")) - logs: ${log_file}"
-}
-
-stop_userland_agent() {
-  local agent_home="$HOME/.local/share/yaze-agent"
-  local pid_file="${agent_home}/agent.pid"
-  if [[ -f "${pid_file}" ]]; then
-    local pid
-    pid="$(cat "${pid_file}")"
-    if kill -0 "${pid}" >/dev/null 2>&1; then
-      kill "${pid}" || true
-    fi
-    rm -f "${pid_file}"
-    echo "Stopped userland agent"
-  fi
-}
-
-install_macos() {
-  local build_type="${1}"
-  local build_dir="${2}"
-  local label="com.yaze.watchtest"
-  local plist_path="$HOME/Library/LaunchAgents/${label}.plist"
-
-  mkdir -p "${build_dir}"
-
-  cat >"$plist_path" <<PLIST
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-  <key>Label</key>
-  <string>${label}</string>
-  <key>RunAtLoad</key>
-  <true/>
-  <key>ProgramArguments</key>
-  <array>
-    <string>/bin/zsh</string>
-    <string>-lc</string>
-    <string>"${SCRIPT_DIR}/agent.sh" run-once</string>
-  </array>
-  <key>WorkingDirectory</key>
-  <string>${PROJECT_ROOT}</string>
-  <key>WatchPaths</key>
-  <array>
-    <string>${PROJECT_ROOT}/src</string>
-    <string>${PROJECT_ROOT}/test</string>
-    <string>${PROJECT_ROOT}/CMakeLists.txt</string>
-    <string>${PROJECT_ROOT}/src/CMakeLists.txt</string>
-  </array>
-  <key>StandardOutPath</key>
-  <string>${build_dir}/yaze_agent.out.log</string>
-  <key>StandardErrorPath</key>
-  <string>${build_dir}/yaze_agent.err.log</string>
-  <key>EnvironmentVariables</key>
-  <dict>
-    <key>BUILD_TYPE</key><string>${build_type}</string>
-    <key>BUILD_DIR</key><string>${build_dir}</string>
-  </dict>
-</dict>
-</plist>
-PLIST
-
-  launchctl unload -w "$plist_path" 2>/dev/null || true
-  launchctl load -w "$plist_path"
-  echo "LaunchAgent installed and loaded: ${plist_path}"
-}
-
-install_linux() {
-  local build_type="${1}"
-  local build_dir="${2}"
-  local use_inotify="${3}"
-  local systemd_dir="$HOME/.config/systemd/user"
-  local service_name="yaze-watchtest.service"
-  local path_name="yaze-watchtest.path"
-
-  mkdir -p "${systemd_dir}" "${build_dir}"
-
-  if ! is_systemd_available; then
-    echo "[agent] systemd not available; installing userland background agent"
-    start_userland_agent "${build_type}" "${build_dir}"
-    return
-  fi
-
-  if [[ "${use_inotify}" == "1" ]]; then
-    cat >"${systemd_dir}/yaze-watchtest-inotify.service" <<UNIT
-[Unit]
-Description=Yaze inotify watcher build-and-test
-
-[Service]
-Type=simple
-Environment=BUILD_TYPE=${build_type}
-Environment=BUILD_DIR=${build_dir}
-WorkingDirectory=${PROJECT_ROOT}
-ExecStart=/bin/bash -lc '"${SCRIPT_DIR}/agent.sh" watch'
-Restart=always
-RestartSec=2
-
-[Install]
-WantedBy=default.target
-UNIT
-
-    systemctl_user daemon-reload
-    systemctl_user enable --now yaze-watchtest-inotify.service
-    echo "systemd user service enabled: yaze-watchtest-inotify.service"
-    return
-  fi
-
-  cat >"${systemd_dir}/${service_name}" <<UNIT
-[Unit]
-Description=Yaze build-and-test (one-shot)
-
-[Service]
-Type=oneshot
-Environment=BUILD_TYPE=${build_type}
-Environment=BUILD_DIR=${build_dir}
-WorkingDirectory=${PROJECT_ROOT}
-ExecStart=/bin/bash -lc '"${SCRIPT_DIR}/agent.sh" run-once'
-UNIT
-
-  cat >"${systemd_dir}/${path_name}" <<UNIT
-[Unit]
-Description=Watch Yaze src/test for changes
-
-[Path]
-PathModified=${PROJECT_ROOT}/src
-PathModified=${PROJECT_ROOT}/test
-PathModified=${PROJECT_ROOT}/CMakeLists.txt
-PathModified=${PROJECT_ROOT}/src/CMakeLists.txt
-Unit=${service_name}
-
-[Install]
-WantedBy=default.target
-UNIT
-
-  systemctl_user daemon-reload
-  systemctl_user enable --now "$path_name"
-  echo "systemd user path unit enabled: ${path_name}"
-  systemctl_user start "$service_name" || true
-}
-
-sub_install() {
-  local build_type="${BUILD_TYPE:-${BUILD_TYPE_DEFAULT}}"
-  local build_dir="${BUILD_DIR:-${BUILD_DIR_DEFAULT}}"
-  local use_inotify=0
-  local do_bootstrap=0
-  local do_linger=0
-  while [[ $# -gt 0 ]]; do
-    case "$1" in
-      --build-type) build_type="$2"; shift 2 ;;
-      --use-inotify) use_inotify=1; shift ;;
-      --ubuntu-bootstrap) do_bootstrap=1; shift ;;
-      --enable-linger) do_linger=1; shift ;;
-      -h|--help) usage; exit 0 ;;
-      *) echo "Unknown option for install: $1" >&2; usage; exit 1 ;;
-    esac
-  done
-
-  case "$(uname -s)" in
-    Darwin)
-      install_macos "${build_type}" "${build_dir}" ;;
-    Linux)
-      if (( do_bootstrap == 1 )); then ubuntu_bootstrap; fi
-      if (( do_linger == 1 )); then enable_linger_linux; fi
-      install_linux "${build_type}" "${build_dir}" "${use_inotify}" ;;
-    *)
-      echo "Unsupported platform" >&2; exit 1 ;;
-  esac
-}
-
-sub_uninstall() {
-  case "$(uname -s)" in
-    Darwin)
-      local label="com.yaze.watchtest"
-      local plist_path="$HOME/Library/LaunchAgents/${label}.plist"
-      launchctl unload -w "$plist_path" 2>/dev/null || true
-      rm -f "$plist_path"
-      echo "Removed LaunchAgent ${label}"
-      ;;
-    Linux)
-      local systemd_dir="$HOME/.config/systemd/user"
-      if is_systemd_available; then
-      systemctl_user stop yaze-watchtest.path 2>/dev/null || true
-      systemctl_user disable yaze-watchtest.path 2>/dev/null || true
-      systemctl_user stop yaze-watchtest.service 2>/dev/null || true
-      systemctl_user stop yaze-watchtest-inotify.service 2>/dev/null || true
-      systemctl_user disable yaze-watchtest-inotify.service 2>/dev/null || true
-      rm -f "${systemd_dir}/yaze-watchtest.service" "${systemd_dir}/yaze-watchtest.path" "${systemd_dir}/yaze-watchtest-inotify.service"
-      systemctl_user daemon-reload || true
-      echo "Removed systemd user units"
-      fi
-      stop_userland_agent
-      ;;
-    *) echo "Unsupported platform" >&2; exit 1 ;;
-  esac
-}
-
-main() {
-  ensure_exec "$0"
-  local subcmd="${1:-}"; shift || true
-  case "${subcmd}" in
-    install) sub_install "$@" ;;
-    uninstall) sub_uninstall ;;
-    run-once) sub_run_once ;;
-    watch) sub_watch ;;
-    -h|--help|help|"") usage ;;
-    *) echo "Unknown subcommand: ${subcmd}" >&2; usage; exit 1 ;;
-  esac
-}
-
-main "$@"
-
-
diff --git a/scripts/create_release.sh b/scripts/create_release.sh
deleted file mode 100755
index 6b56058c..00000000
--- a/scripts/create_release.sh
+++ /dev/null
@@ -1,138 +0,0 @@
-#!/bin/bash
-# Script to create a proper release tag for YAZE
-# Usage: ./scripts/create_release.sh [version]
-# Example: ./scripts/create_release.sh 0.3.0
-
-set -e
-
-# Colors for output
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-YELLOW='\033[1;33m'
-BLUE='\033[0;34m'
-NC='\033[0m' # No Color
-
-# Function to print colored output
-print_info() {
-    echo -e "${BLUE}ℹ️  $1${NC}"
-}
-
-print_success() {
-    echo -e "${GREEN}✅ $1${NC}"
-}
-
-print_warning() {
-    echo -e "${YELLOW}⚠️  $1${NC}"
-}
-
-print_error() {
-    echo -e "${RED}❌ $1${NC}"
-}
-
-# Check if we're in a git repository
-if ! git rev-parse --git-dir > /dev/null 2>&1; then
-    print_error "Not in a git repository!"
-    exit 1
-fi
-
-# Check if we're on master branch
-current_branch=$(git branch --show-current)
-if [ "$current_branch" != "master" ]; then
-    print_warning "You're on branch '$current_branch', not 'master'"
-    read -p "Continue anyway? (y/N): " -n 1 -r
-    echo
-    if [[ ! $REPLY =~ ^[Yy]$ ]]; then
-        print_info "Switching to master branch..."
-        git checkout master
-    fi
-fi
-
-# Get version argument or prompt for it
-if [ $# -eq 0 ]; then
-    echo
-    print_info "Enter the version number (e.g., 0.3.0, 1.0.0-beta, 2.1.0-rc1):"
-    read -p "Version: " version
-else
-    version=$1
-fi
-
-# Validate version format
-if [[ ! "$version" =~ ^[0-9]+\.[0-9]+\.[0-9]+(-.*)?$ ]]; then
-    print_error "Invalid version format: '$version'"
-    print_info "Version must follow semantic versioning (e.g., 1.2.3 or 1.2.3-beta)"
-    exit 1
-fi
-
-# Create tag with v prefix
-tag="v$version"
-
-# Check if tag already exists
-if git tag -l | grep -q "^$tag$"; then
-    print_error "Tag '$tag' already exists!"
-    exit 1
-fi
-
-# Show current status
-echo
-print_info "Current repository status:"
-git status --short
-
-# Check for uncommitted changes
-if ! git diff-index --quiet HEAD --; then
-    print_warning "You have uncommitted changes!"
-    read -p "Continue with creating release? (y/N): " -n 1 -r
-    echo
-    if [[ ! $REPLY =~ ^[Yy]$ ]]; then
-        print_info "Please commit your changes first, then run this script again."
-        exit 1
-    fi
-fi
-
-# Show what will happen
-echo
-print_info "Creating release for YAZE:"
-echo "  📦 Version: $version"
-echo "  🏷️  Tag: $tag"
-echo "  🌿 Branch: $current_branch"
-echo "  📝 Changelog: docs/C1-changelog.md"
-echo
-
-# Confirm
-read -p "Create this release? (y/N): " -n 1 -r
-echo
-if [[ ! $REPLY =~ ^[Yy]$ ]]; then
-    print_info "Release creation cancelled."
-    exit 0
-fi
-
-# Create and push tag
-print_info "Creating tag '$tag'..."
-if git tag -a "$tag" -m "Release $tag"; then
-    print_success "Tag '$tag' created successfully!"
-else
-    print_error "Failed to create tag!"
-    exit 1
-fi
-
-print_info "Pushing tag to origin..."
-if git push origin "$tag"; then
-    print_success "Tag pushed successfully!"
-else
-    print_error "Failed to push tag!"
-    print_info "You can manually push with: git push origin $tag"
-    exit 1
-fi
-
-echo
-print_success "🎉 Release $tag created successfully!"
-print_info "The GitHub Actions release workflow will now:"
-echo "  • Build packages for Windows, macOS, and Linux"
-echo "  • Extract changelog from docs/C1-changelog.md"
-echo "  • Create GitHub release with all assets"
-echo "  • Include themes, fonts, layouts, and documentation"
-echo
-print_info "Check the release progress at:"
-echo "  https://github.com/scawful/yaze/actions"
-echo
-print_info "The release will be available at:"
-echo "  https://github.com/scawful/yaze/releases/tag/$tag"
diff --git a/scripts/test_apu_boot.sh b/scripts/test_apu_boot.sh
deleted file mode 100755
index 31aea3d2..00000000
--- a/scripts/test_apu_boot.sh
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/bin/bash
-# Test script for APU/SPC700 boot sequence debugging
-# Runs yaze with specific filters to show only critical APU events
-
-cd /Users/scawful/Code/yaze
-
-echo "========================================="
-echo "Testing ALTTP APU Boot Sequence"
-echo "========================================="
-echo ""
-
-# Run yaze and filter for key events
-./build/bin/yaze.app/Contents/MacOS/yaze 2>&1 | \
-grep -E "(Frame [0-9]+: CPU|SPC wrote port.*F4|MOVSY writing|CPU read.*2140.*=.*(AA|BB|CC|01|02)|CPU wrote.*214[012]|TRANSFER LOOP.*FFDF)" | \
-head -100
-
-echo ""
-echo "========================================="
-echo "Test complete - check output above for:"
-echo "1. Initial handshake ($AA/$BB)"
-echo "2. Command echo ($CC)"
-echo "3. Counter acknowledgments ($00, $01, $02...)"
-echo "4. CPU progress beyond $88xx range"
-echo "========================================="
-
diff --git a/src/lib/SDL b/src/lib/SDL
index 235e4870..66d87bf0 160000
--- a/src/lib/SDL
+++ b/src/lib/SDL
@@ -1 +1 @@
-Subproject commit 235e4870af091ea7e3814ee2dbdb8e2ec627aaf0
+Subproject commit 66d87bf0e1e29377b398d3c567e1ab3590760d8c