IONA OS is not just a kernel. It's a complete platform for building sovereign applications.

This guide shows you how to write your first native application for IONA OS — from project setup to running it on the system.

1. The Ecosystem

IONA OS supports two languages for native application development:

• Rust — for performance-critical applications (system tools, drivers, 3D applications).
• Flux — for applications that leverage the AI, causal memory, and timeline features.

Both languages can interact with the kernel through a unified syscall interface.

2. Writing a Rust Application

Create a new Rust project:

cargo new my_app --bin

Add the IONA syscall crate to Cargo.toml:
[dependencies]
iona-syscall = { git = "https://github.com/Ionablokchain/Iona-OS" }

// src/main.rs

![no_std]

![no_main]

use iona_syscall::*;

pub extern "C" fn _start() -> ! {
// Print a message to the console
println!("Hello from IONA OS!");

// Get system metrics
let cpu_temp = syscall::get_cpu_temp();
let uptime = syscall::get_uptime();

println!("CPU Temperature: {}°C", cpu_temp);
println!("Uptime: {} seconds", uptime);

loop {}

}

Build and run:

cargo build --target x86_64-unknown-iona
iona-run target/x86_64-unknown-iona/debug/my_app

1. Writing a Flux Application Flux is a language designed for describing intentions, timelines, and causal relationships.

A simple Flux application:

intention HelloWorld {
trigger: on_boot()
priority: 0.5
execute: {
send("inner_voice", "Hello from Flux!", 1s);
let temp = system::cpu_temp();
send("inner_voice", "CPU temperature is: " ++ to_string(temp), 1s);
}
}
Flux applications are compiled to bytecode and run on the Flux VM, which is integrated into the kernel.

1. AI Integration — The ai Syscall IONA OS applications can interact with the kernel-integrated AI.

let result = syscall::ai_query("What is the current system health?");
println!("AI says: {}", result);

The AI can also be used for:

ai_suggest_governor() — suggests optimal CPU governor for current workload.

ai_optimize_memory() — suggests memory management changes.

ai_predict_crash() — predicts potential system failures.

1. GUI Applications IONA OS includes a native GUI compositor (glass). Applications can create windows, buttons, and text inputs.

use iona_gui::*;

fn main() {
let window = Window::new("My App", 800, 600);
let button = Button::new("Click me");
button.on_click(|| {
println!("Button clicked!");
});
window.add(button);
window.run();
}

The GUI compositor supports 3D acceleration via VirGL/Vulkan, animations, and themes.

1. What's Next This is just the beginning. IONA OS also supports:

WASM — run WebAssembly applications in a sandbox.

System services — background tasks, daemons, and services.

Blockchain integration — native IONA Protocol transactions from your app.

All of this is available in the current version of IONA OS.

Resources
GitHub: github.com/Ionablokchain

Website: iona.zone

Documentation: (coming soon)

IONA OS

I'm building this alone. 13 years of research. Every line is written from scratch. And it works.