playground is on the struggle bus, but:

```rust
const EXAMPLE: &str = "hello, noah!";
const EX_ARR: [u8; 128] = arrayify(EXAMPLE);

const fn arrayify<const N: usize>(msg: &'static str) -> [u8; N] {
    let mut arr = [0u8; N];
    let mut idx = 0;
    let msg_bytes = msg.as_bytes();

    while (idx < msg_bytes.len()) && (idx < N) {
        arr[idx] = msg_bytes[idx];
        idx += 1;
    }

    arr
}

fn main() {
    println!("{:?}", EX_ARR);
}

```