Installation

Install act-cli

npm

npm install -g @actcore/act-cli

pip

pip install actcore

Cargo

cargo install act-cli

Verify Installation

act --version

Rust Toolchain Setup

ACT components target WebAssembly. You need the nightly Rust toolchain with the wasm32-wasip2 target:

rustup toolchain install nightly
rustup target add wasm32-wasip2 --toolchain nightly

Tip

Use a rust-toolchain.toml in your project root to pin the toolchain:

[toolchain]
channel = "nightly"
targets = ["wasm32-wasip2"]

Scaffold a Component

# Using the copier template
pip install copier
copier copy gh:actcore/act-component-template my-component

Or manually — create a new Rust library project:

cargo new --lib my-component
cd my-component

Add dependencies to Cargo.toml:

[lib]
crate-type = ["cdylib"]

[dependencies]
act-sdk = "0.2"

Next Steps

• Create your first component