Compiling the MicroPython sourcecode to `.mpy` turns it into "frozen bytecode" which results in lower memory consumption
during execution.

```shell
git clone https://github.com/micropython/micropython.git
cd micropython/mpy-cross
make
cp build/mpy-cross <project root>
```

The `upload.sh` script will manage building this MicroPython project. If you get an error on the `Erase` step, that's
fine and due to the files not existing to be erased.