Revamp: embedded console, faster-whisper, simplified install

Mac_instructions.md

@@ -1,9 +1,31 @@
-### How to run on Mac
-Unfortunately, I have not found a permament solution for this, not being a Mac user has limited the ways I can test this.  
-#### Recommended steps
-1. Open a terminal and navigate to the root folder (the downloaded the folder). 
-    1. You can also right-click (or equivalent) on the root folder to open a Terminal within the folder.
-2. Run the following command:
+### How to run on Mac / Linux
+
+#### Quick start
+1. Open Terminal and navigate to the project folder (or right-click the folder and select "Open in Terminal").
+2. Make the script executable (only needed once):
 ```
-python app.py
+chmod +x run_Mac.sh
 ```
+3. Run it:
+```
+./run_Mac.sh
+```
+
+This will automatically:
+- Create a virtual environment (`.venv`)
+- Install all dependencies (no admin rights needed)
+- Launch the app
+
+#### Manual steps (alternative)
+If you prefer to do it manually:
+```
+python3 -m venv .venv
+.venv/bin/python install.py
+.venv/bin/python app.py
+```
+
+#### Notes
+- **Python 3.10+** is required. macOS users can install it from [python.org](https://www.python.org/downloads/) or via `brew install python`.
+- **No FFmpeg install needed** — audio decoding is bundled.
+- **GPU acceleration** is not available on macOS (Apple Silicon MPS is not supported by CTranslate2). CPU with int8 quantization is still fast.
+- On Apple Silicon (M1/M2/M3/M4), the `small` or `base` models run well. `medium` works but is slower.