Minimal 3ds example

build.sh

#!/usr/bin/env bash
cd /build
cargo 3ds build
cargo 3ds build --release

Cargo.toml

[package]
name = "trial3ds"
version = "0.1.0"
edition = "2021"

[dependencies]
ctru-rs = { git = "https://github.com/Meziu/ctru-rs" }

gen_image.sh

#!/usr/bin/env bash

# Warning: This build took 1 hour with i3-6100T.

git clone https://github.com/ian-h-chamberlain/docker-rust-devkitarm.git
cd docker-rust-devkitarm
DOCKER_BUILDKIT=1 docker build -t rust-devkitarm .

main.rs

extern crate ctru;

use ctru::gfx::Gfx;
use ctru::console::Console;
use ctru::services::apt::Apt;
use ctru::services::hid::{Hid, KeyPad};

fn main() {
    let apt = Apt::init().unwrap();
    let hid = Hid::init().unwrap();
    let gfx = Gfx::init().unwrap();
    let _console = Console::init(gfx.top_screen.borrow_mut());

    println!("Hello, world!");

    println!("\x1b[29;16HPress Start to exit");

    while apt.main_loop() {
        gfx.flush_buffers();
        gfx.swap_buffers();
        gfx.wait_for_vblank();

        hid.scan_input();
        if hid.keys_down().contains(KeyPad::KEY_START) {
            break;
        }
    }
}

run_build.sh

#!/usr/bin/env bash
docker run \
  --rm \
  --name 3ds-builder \
  -v /path/to/proj:/build \
  -v $PWD/build.sh:/build.sh \
  --entrypoint /build.sh \
  rust-devkitarm