Add app.py as pack host

app.py

@@ -0,0 +1,27 @@
+import os
+from pathlib import Path
+
+from flask import Flask, send_from_directory, abort
+
+app = Flask(__name__)
+
+
+@app.route("/file/<name>")
+def get_file(name):
+    if not os.path.exists("/scripts/files/" + name):
+        abort(404)
+    return send_from_directory("/scripts/files", name)
+
+
+if __name__ == '__main__':
+    port = 8080
+    config_file = Path(__file__).parent / "config.properties"
+    if config_file.exists():
+        lines = config_file.read_text().splitlines()
+        for line in lines:
+            if "=" not in line: continue
+            key, value = line.split("=", 1)
+            if key == "port":
+                port = int(value)
+
+    app.run(host='0.0.0.0', port=port)

config.properties

@@ -0,0 +1 @@
+port=25566