diff --git a/.gitignore b/.gitignore
index 6c7cbe6..3c5d84a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@ __pycache__/
 *.AppImage
 __pycache__/
 *.pyc
+*.appimage
diff --git a/build_appimage.sh b/build_appimage.sh
new file mode 100755
index 0000000..9887d52
--- /dev/null
+++ b/build_appimage.sh
@@ -0,0 +1,142 @@
+#!/usr/bin/env bash
+# build_appimage.sh — builds GizerBridge.AppImage
+#
+# Requires: bash, wget, x86_64 Linux
+# Downloads appimagetool and a self-contained Python 3.11 AppImage (first run
+# only; both are cached in .build_appimage/).  No system Python is used.
+#
+# Usage:
+#   bash build_appimage.sh          # builds GizerBridge.AppImage here
+#   bash build_appimage.sh --clean  # wipe cache and rebuild
+set -euo pipefail
+
+APP="GizerBridge"
+PY_VER="3.11"
+PY_FULL="3.11.14"    # exact release from niess/python-appimage
+PY_TAG="cp311"
+MANYLINUX="manylinux_2_28"
+ARCH="x86_64"
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+SRC="$SCRIPT_DIR/gizerbridge"
+BUILD="$SCRIPT_DIR/.build_appimage"
+APPDIR="$BUILD/AppDir"
+
+PYTHON_AI_NAME="python${PY_FULL}-${PY_TAG}-${PY_TAG}-${MANYLINUX}_${ARCH}.AppImage"
+PYTHON_AI_URL="https://github.com/niess/python-appimage/releases/download/python${PY_VER}/${PYTHON_AI_NAME}"
+APPIMAGETOOL_URL="https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-${ARCH}.AppImage"
+
+# ── Args ──────────────────────────────────────────────────────────────────────
+if [[ "${1:-}" == "--clean" ]]; then
+    echo "Cleaning build cache..."
+    rm -rf "$BUILD"
+fi
+
+mkdir -p "$BUILD"
+
+# ── 1. appimagetool ───────────────────────────────────────────────────────────
+APPIMAGETOOL="$BUILD/appimagetool"
+if [[ ! -f "$APPIMAGETOOL" ]]; then
+    echo "[1/5] Downloading appimagetool..."
+    wget -q --show-progress "$APPIMAGETOOL_URL" -O "$APPIMAGETOOL"
+    chmod +x "$APPIMAGETOOL"
+else
+    echo "[1/5] appimagetool already cached."
+fi
+
+# ── 2. Python AppImage ────────────────────────────────────────────────────────
+PYTHON_AI="$BUILD/$PYTHON_AI_NAME"
+if [[ ! -f "$PYTHON_AI" ]]; then
+    echo "[2/5] Downloading Python ${PY_VER} AppImage..."
+    wget -q --show-progress "$PYTHON_AI_URL" -O "$PYTHON_AI"
+    chmod +x "$PYTHON_AI"
+else
+    echo "[2/5] Python AppImage already cached."
+fi
+
+# ── 3. Extract and install dependencies ──────────────────────────────────────
+echo "[3/5] Extracting Python ${PY_VER} AppImage..."
+rm -rf "$APPDIR" "$BUILD/squashfs-root"
+# --appimage-extract unpacks squashfs directly without FUSE
+(cd "$BUILD" && "./$PYTHON_AI_NAME" --appimage-extract)
+mv "$BUILD/squashfs-root" "$APPDIR"
+
+PYTHON="$APPDIR/opt/python${PY_VER}/bin/python${PY_VER}"
+
+echo "       Ensuring pip is available..."
+"$PYTHON" -m ensurepip --upgrade --quiet 2>/dev/null || true
+"$PYTHON" -m pip install --quiet --upgrade pip
+
+echo "       Installing: requests Pillow pystray..."
+"$PYTHON" -m pip install --quiet --no-warn-script-location \
+    "requests>=2.28.0" "Pillow>=9.0.0" "pystray>=0.19.0"
+
+# ── 4. Assemble AppDir ────────────────────────────────────────────────────────
+echo "[4/5] Assembling AppDir..."
+
+# App source — placed at the AppDir root so main.py's sys.path.insert works
+APP_PKG="$APPDIR/gizerbridge"
+mkdir -p "$APP_PKG"
+cp "$SRC"/*.py "$APP_PKG/"
+cp "$SRC"/icon.png "$APP_PKG/"
+cp "$SRC"/icon_full.png "$APP_PKG/"
+
+# AppRun — replaces the Python base AppRun.
+# The Python base image ships AppRun as a symlink (→ usr/bin/python3.11).
+# Remove it before writing so we create a regular file, not overwrite the target.
+rm -f "$APPDIR/AppRun"
+# Use $APPDIR (set by AppImage runtime for both FUSE and extract-and-run modes)
+cat > "$APPDIR/AppRun" << 'APPRUN_EOF'
+#!/bin/bash
+# $APPDIR is always set by the AppImage runtime
+export PYTHONHOME="${APPDIR}/opt/python3.11"
+export LD_LIBRARY_PATH="${APPDIR}/usr/lib:${APPDIR}/opt/python3.11/lib${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}"
+# Point Tcl/Tk at the bundled scripts (avoids system version conflicts)
+export TCL_LIBRARY="${APPDIR}/usr/share/tcltk/tcl8.6"
+export TK_LIBRARY="${APPDIR}/usr/share/tcltk/tk8.6"
+exec "${APPDIR}/opt/python3.11/bin/python3.11" "${APPDIR}/gizerbridge/main.py" "$@"
+APPRUN_EOF
+chmod +x "$APPDIR/AppRun"
+
+# .desktop — remove any .desktop files from the Python base image first
+rm -f "$APPDIR"/*.desktop
+cat > "$APPDIR/${APP}.desktop" << DESKTOP_EOF
+[Desktop Entry]
+Name=GizerBridge
+Comment=Sierra Chart → Tralgo Analytics
+Exec=AppRun
+Icon=gizerbridge
+Type=Application
+Categories=Office;Finance;
+Terminal=false
+StartupNotify=false
+StartupWMClass=gizerbridge
+DESKTOP_EOF
+
+# Icon (must be at AppDir root, named <Icon-field>.png)
+cp "$SRC/icon.png" "$APPDIR/gizerbridge.png"
+# .DirIcon — used by Dolphin and other file managers as the AppImage file icon
+# The Python base image ships .DirIcon as a symlink; remove it first.
+rm -f "$APPDIR/.DirIcon"
+cp "$SRC/icon.png" "$APPDIR/.DirIcon"
+
+# Remove the usr/bin Python wrappers from the base image — they confuse the
+# AppImage runtime when it tries to locate $0 and end up with the wrong $HERE.
+rm -f "$APPDIR/usr/bin/python" \
+      "$APPDIR/usr/bin/python3" \
+      "$APPDIR/usr/bin/python3.11"
+
+# ── 5. Build AppImage ─────────────────────────────────────────────────────────
+echo "[5/5] Building AppImage..."
+OUTPUT="$SCRIPT_DIR/${APP}.AppImage"
+rm -f "$OUTPUT"
+
+# APPIMAGE_EXTRACT_AND_RUN=1 lets appimagetool run without FUSE on the host
+ARCH=x86_64 APPIMAGE_EXTRACT_AND_RUN=1 \
+    "$APPIMAGETOOL" --comp gzip "$APPDIR" "$OUTPUT" 2>&1
+
+echo ""
+echo "✓ Built: $OUTPUT"
+echo "  Size : $(du -sh "$OUTPUT" | cut -f1)"
+echo ""
+echo "Run with:  ./${APP}.AppImage"
diff --git a/icon_full-640.png b/icon_full-640.png
new file mode 100644
index 0000000..5febcb3
Binary files /dev/null and b/icon_full-640.png differ