<dirbaio[m]> "static mut SPI_INSTANCE: Mutex<..." <- > <@dirbaio:matrix.org> ```rust
> static SPI_INSTANCE: Mutex<CriticalSectionRawMutex, Cell<Option<&'static mut dyn SpiDevice<u16, Error=Infallible>>>> = Mutex::new(Cell::new(None));
> ```

error[E0277]: `(dyn embedded_hal::spi::SpiDevice<u16, Error = Infallible> + 'static)` cannot be sent between threads safely :(