Quick Start Guide: Developing Nucleus on Verisense

This guide will help you quickly get started with developing your first Nucleus using Rust. By the end, you’ll have a simple deployed Nucleus and be able to interact with it.

Preparing Environment

First, install Rust and configure it for WebAssembly (Wasm) compilation:

Install Rust:

You can visit the Rust installation page or run the following bash command:

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

Add the WebAssembly target:

A Nucleus is developed in Rust and compiled into a WebAssembly (Wasm) .wasm executable. In Verisense, the core logic of a Nucleus is hosted and executed on the network in the form of this Wasm file.

WebAssembly (Wasm) is a modern binary instruction format designed to bring high-performance code execution to the web and other environments. It is portable, compact, and secure, allowing code written in multiple languages (such as Rust or C/C++) to run efficiently across various platforms.

To enable Rust to generate Wasm target files, you must add the wasm32-unknown-unknown compilation target to your Rust toolchain. The steps below show how to add this target.

rustup target add wasm32-unknown-unknown

Verify Installation

After installation, run the following commands to ensure Rust and the Wasm target are set up correctly:

rustc --version
cargo --version
rustup target list --installed

You should see output similar to:

• Version numbers for rustc and cargo
• wasm32-unknown-unknown listed among the installed targets

If all commands produce the expected output, your environment is ready for development.

Next, in chapter Creating a Simple Nucleus, you'll learn how to build a simple Nucleus program. In the following sections, we'll walk through the steps to implement, compile, and deploy your first Nucleus instance.