docs (README.md): add taskfile instructions, update vanilla npm/npx commands

Author: pythoninthegrass

README.md

@@ -40,18 +40,75 @@ lunchjs/
 
 ## Development
 
+### Prerequisites
+
+1. **Install Node.js and Rust**:
+   ```bash
+   mise install
+   ```
+
+   If you encounter GPG signature verification errors, import the Node.js release key:
+   ```bash
+   gpg --keyserver hkps://keys.openpgp.org --recv-keys 86C8D74642E67846F8E120284DAA80D1E737BC9F
+   ```
+
+2. **Install dependencies**:
+   ```bash
+   npm install
+   ```
+
+3. **Install iOS targets** (for mobile development):
+   ```bash
+   rustup target add aarch64-apple-ios x86_64-apple-ios aarch64-apple-ios-sim
+   ```
+
+### Running the app
+
+#### Using Taskfile (recommended)
+
 ```bash
-# Install iOS targets
-rustup target add aarch64-apple-ios x86_64-apple-ios aarch64-apple-ios-sim
+# Development (macOS)
+task dev
+
+# Development (iOS simulator)
+task ios
+
+# Development (physical iOS device)
+task ios:device
 
+# Build (macOS - current architecture)
+task build
+
+# Build (macOS - Apple Silicon)
+task build:arm64
+
+# Build (macOS - Intel)
+task build:x64
+
+# Build (iOS for App Store)
+task ios:build
+
+# Upload to TestFlight
+task ios:testflight
+
+# Upload to App Store
+task ios:release
+
+# Clean build artifacts
+task clean
+```
+
+#### Using npm/npx directly
+
+```bash
 # Development (macOS)
-cd src-tauri && npx tauri dev
+npx tauri dev
 
 # Development (iOS simulator)
 cd src-tauri && npx tauri ios dev
 
 # Build (macOS)
-cd src-tauri && npx tauri build
+npx tauri build
 
 # Build (iOS)
 cd src-tauri && npx tauri ios build