Installing Flutter

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# First, on a fresh Mac: install the Xcode Command Line Tools (git, clang, etc.
# Homebrew needs these). Skip if `git --version` already works.
xcode-select --install

# Recommended: Homebrew
brew install --cask flutter

# Android builds: install Android Studio (bundles the SDK + emulator)
brew install --cask android-studio
# then open Android Studio once to finish SDK setup, or:
flutter doctor --android-licenses

# iOS builds: install the full Xcode app from the App Store (the CLT above are
# NOT enough for device/simulator builds), then point the toolchain at it:
sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
sudo xcodebuild -runFirstLaunch
sudo gem install cocoapods   # or: brew install cocoapods

flutter doctor   # verify your toolchain

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# Option A: Snap (Ubuntu/Debian)
sudo snap install flutter --classic

# Option B: manual tarball
# Download from https://docs.flutter.dev/get-started/install/linux and:
tar xf flutter_linux_*-stable.tar.xz -C ~/development
export PATH="$HOME/development/flutter/bin:$PATH"   # add to ~/.bashrc/.zshrc

# Common build deps
sudo apt-get install -y curl git unzip xz-utils zip libglu1-mesa

# Android: install Android Studio (or cmdline-tools), then:
flutter doctor --android-licenses
flutter doctor

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# Option A: winget
winget install --id=Flutter.Flutter -e

# Option B: manual zip
# Download from https://docs.flutter.dev/get-started/install/windows,
# unzip to e.g. C:\src\flutter, then add C:\src\flutter\bin to PATH.

# Android: install Android Studio, then:
flutter doctor --android-licenses
flutter doctor