diff --git a/README.md b/README.md
index a6cc5f5..d38968b 100644
--- a/README.md
+++ b/README.md
@@ -19,21 +19,32 @@ A lightweight, local push-to-talk dictation app for macOS using OpenAI's Whisper
 
 ## Installation
 
-### Prerequisites
+### Swift Version (Current - Recommended)
+
+The Swift version is faster, more native, and fully self-contained. No ffmpeg required!
+
+**Prerequisites:**
 - macOS 13.0+ (tested on macOS 15+)
+- Xcode Command Line Tools (for Swift compiler)
+- [uv](https://github.com/astral-sh/uv) package manager
 
-### Swift Version (Current)
+1. **Install prerequisites**:
+```bash
+# Install uv if you don't have it
+brew install uv
 
-The Swift version is faster, more native, and fully self-contained. No ffmpeg required!
+# Install Python 3.13 (required for bundling mlx-whisper)
+uv python install 3.13
+```
 
-1. **Clone and build**:
+2. **Clone and build**:
 ```bash
 git clone https://github.com/sayhar/dictation-app.git
 cd dictation-app
 ./build-swift.sh
 ```
 
-2. **Install the app**:
+3. **Install the app**:
 ```bash
 cp -R "dist/Swift Dictation.app" ~/Applications/
 open ~/Applications/"Swift Dictation.app"
@@ -41,9 +52,10 @@ open ~/Applications/"Swift Dictation.app"
 
 ### Python Version (Legacy)
 
-The original Python implementation.
+The original Python implementation. Use the Swift version above for better performance.
 
 **Prerequisites:**
+- macOS 13.0+
 - Python 3.12+
 - [uv](https://github.com/astral-sh/uv) package manager
 - ffmpeg
@@ -97,7 +109,7 @@ If the app doesn't request permissions automatically:
 | Medium | ~1.5GB | Slower | Very Good |
 | Large | ~3GB | Slowest | Best |
 
-Models are automatically downloaded to `~/.cache/whisper/` on first use.
+Models are automatically downloaded to `~/.cache/huggingface/` on first use.
 
 ## Technical Details
 
@@ -123,8 +135,21 @@ Standard Python keyboard libraries (like pynput) don't work properly in bundled
 
 ## Files
 
+### Swift Version
+- `Dictation/` - Swift source code directory
+  - `AppDelegate.swift` - Main app, menu bar UI, flow coordination
+  - `KeyboardMonitor.swift` - Right Command key detection
+  - `AudioRecorder.swift` - Audio recording via AVFoundation
+  - `TranscriptionService.swift` - Whisper transcription via Python subprocess
+  - `TextInjector.swift` - Clipboard and text injection handling
+- `build-swift.sh` - Build script for creating the app bundle
+- `Package.swift` - Swift Package Manager configuration
+
+### Python Version (Legacy)
 - `dictation.py` - Main application code
 - `setup.py` - py2app build configuration
+
+### Shared
 - `create_icon.py` - Icon generation script
 - `~/Library/Logs/Dictation.log` - Debug logs
 - `~/Library/Logs/Dictation_Transcripts.log` - Long transcriptions (>30s)
@@ -140,6 +165,11 @@ System Settings → General → Login Items → Add Dictation.app
 - Quit the app completely
 - Re-launch and grant permissions fresh
 
+**Permissions need to be re-granted after rebuild:**
+- This is expected behavior. Each rebuild changes the app's code signature
+- macOS requires re-granting Accessibility and Microphone permissions when the signature changes
+- Simply approve the permission prompts when they appear
+
 **Permissions show as "uv" or "Python":**
 - This is normal when running via `uv run`
 - Build with py2app for proper app attribution
@@ -149,6 +179,15 @@ System Settings → General → Login Items → Add Dictation.app
 - Try removing and re-adding the app to permissions
 - Check logs: `tail -f ~/Library/Logs/Dictation.log`
 
+**First transcription is slow:**
+- The Whisper model downloads on first use (~500MB for "small" model)
+- Subsequent transcriptions are much faster
+- You can monitor progress in the logs: `tail -f ~/Library/Logs/Dictation.log`
+
+**Build fails with "Python 3.13 not found":**
+- Install Python 3.13 via uv: `uv python install 3.13`
+- Ensure uv is installed: `brew install uv`
+
 ## License
 
 MIT
diff --git a/build-swift.sh b/build-swift.sh
index b21be7d..1addd1f 100755
--- a/build-swift.sh
+++ b/build-swift.sh
@@ -49,12 +49,16 @@ mkdir -p "${PYTHON_BUNDLE}/bin"
 mkdir -p "${PYTHON_BUNDLE}/lib"
 
 # Copy Python interpreter from uv's managed location
-UV_PYTHON="$HOME/.local/share/uv/python/cpython-3.13.5-macos-aarch64-none"
-if [ -d "${UV_PYTHON}" ]; then
+# Find the latest Python 3.13.x installation
+UV_PYTHON=$(ls -d "$HOME/.local/share/uv/python"/cpython-3.13.*-macos-aarch64-none 2>/dev/null | sort -V | tail -1)
+if [ -n "${UV_PYTHON}" ] && [ -d "${UV_PYTHON}" ]; then
     # Copy just the bin and lib directories we need
     cp -R "${UV_PYTHON}/bin" "${PYTHON_BUNDLE}/"
     cp -R "${UV_PYTHON}/lib" "${PYTHON_BUNDLE}/"
-    echo "Copied Python 3.13 interpreter"
+    echo "Copied Python 3.13 interpreter from ${UV_PYTHON}"
+else
+    echo "ERROR: Python 3.13 not found. Install with: uv python install 3.13"
+    exit 1
 fi
 
 # Install ONLY mlx-whisper and its dependencies to a clean location