Update Dockerfile and README for Textual Calculator; add serve.py

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.10-slim
+FROM python:3.13-slim
 
 # Set proper terminal environment for Textual
 ENV TERM=xterm-256color
@@ -18,9 +18,7 @@ COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
 # Copy application files
-COPY app.py .
-COPY calculator.py .
-COPY calculator.tcss .
+COPY server.py .
 
 # Expose the port that HF Spaces expects
 EXPOSE 7860

README.md

@@ -1,10 +1,44 @@
 ---
-title: Textual Serve
-emoji: ⚡
+title: Textual Calculator
+emoji: 🧮
 colorFrom: indigo
 colorTo: gray
 sdk: docker
+app_port: 7860
 pinned: false
 ---
 
-Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+# Textual Calculator on Hugging Face Spaces
+
+This Space demonstrates a fully functional calculator application built with [Textual](https://github.com/Textualize/textual) and served through [textual-serve](https://github.com/Textualize/textual-serve) on Hugging Face Spaces.
+
+## What is this?
+
+This Space runs a macOS-inspired calculator application as a Terminal User Interface (TUI) in your web browser. It showcases how sophisticated TUI applications can be deployed as web apps using Textual and Hugging Face Spaces.
+
+## Calculator Features
+
+- 🔢 Full arithmetic operations (addition, subtraction, multiplication, division)
+- % Percentage calculations
+- ± Sign toggling
+- 🖱️ Click buttons with your mouse
+- ⌨️ Use your keyboard for input
+- 🎨 Beautiful macOS-inspired design
+- 🚀 Real-time interaction via WebSockets
+
+## How it works
+
+1. The Docker container runs a textual-serve server on port 7860
+2. The server spawns the Textual demo application as a subprocess
+3. WebSocket connections handle bidirectional communication
+4. Your browser displays the terminal interface
+
+## Want to deploy your own Textual app?
+
+Check out the [source code](https://huggingface.co/spaces/[your-username]/textual-serve/tree/main) to see how this Space is configured and adapt it for your own Textual applications!
+
+## Resources
+
+- [Textual Documentation](https://textual.textualize.io/)
+- [Textual-Serve GitHub](https://github.com/Textualize/textual-serve)
+- [HF Spaces Docker SDK](https://huggingface.co/docs/hub/spaces-sdks-docker)

serve.py

@@ -0,0 +1,4 @@
+from textual_serve.server import Server
+
+server = Server("python -m textual")
+server.serve()