Prerequisites

Depending on what platforms and adapters you use, there are several prerequisites to install before getting started.

• General
  • Rust
  • Cmake
• iOS
  • Xcode
• Android
  • Android Studio
  • JDK(Java Development Kit)
  • Also see configuration below
• Web(WASM)
  • wasm-pack
  • Download Chrome/ChromeDriver
• Circom
  • Pre-built zkey and wasm files for your circuits
• Halo2
  • Pre-generated SRS (Structured Reference String) file, typically used as the universal setup for your circuits

iOS configuration

Ensure that the command-line tools path is correctly set in Xcode. You can check this by navigating to Xcode > Settings > Locations.

Android configuration

Some additional configuration is required for Android.

First, install the latest SDK. In Android Studio, go to SDK Manager > SDK Tools and install NDK (Side by Side) (see Android Developer site).

After that, set the following environment variables:

1. Export $ANDROID_HOME and change {USER_NAME} to your username

export ANDROID_HOME="/Users/{USER_NAME}/Library/Android/sdk"

2. Locate which NDK version you have

ls $ANDROID_HOME/ndk # => 26.1.10909125

3. Set it to your NDK_PATH environment variable

NDK_PATH=$ANDROID_HOME/ndk/26.1.10909125

Reference: Running Rust on Android with UniFFI.