* E.g. replace `u32::from_le_bytes(&buf[4..8].try_into().unwrap()` with `parse_le!(buf, u32, 4..8)`. I often do this many times in a row, so the clutter adds up.

Or to set up interrupts:

```rust
setup_nvic!([
    (EXTI1, 2), // Button
    (TIM2, 3), // Main loop
]), cp);
```