feat: dockerize, fix sign in loop

docker/entrypoint.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+if [ "$VNC_ENABLED" = true ]; then
+    set -- vnc-start "$@"
+fi
+
+if [ "$EXPOSE_X11" = true ]; then
+    set -- --listen-tcp "$@"
+fi
+
+# 6000+SERVERNUM is the TCP port Xvfb is listening on:
+SERVERNUM=$(echo "$DISPLAY" | sed 's/:\([0-9][0-9]*\).*/\1/')
+
+# Options passed directly to the Xvfb server:
+# -ac disables host-based access control mechanisms
+# −screen NUM WxHxD creates the screen and sets its width, height, and depth
+SERVERARGS="-ac -screen 0 ${SCREEN_WIDTH}x${SCREEN_HEIGHT}x${SCREEN_DEPTH}"
+
+exec tini -g -- \
+    xvfb-run --server-num "$SERVERNUM" --server-args "$SERVERARGS" "$@"

docker/vnc-start.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+
+# Disable fbsetbg and start fluxbox in a background process:
+mkdir -p ~/.fluxbox && echo 'background: unset' >>~/.fluxbox/overlay
+fluxbox -display "$DISPLAY" &
+
+# Start VNC in a background process:
+x11vnc -display "$DISPLAY" -forever -shared -rfbport "${VNC_PORT:-5900}" \
+    -passwd "${VNC_PASSWORD:-secret}" &
+
+# Execute the given command:
+exec "$@"