# Bootloader

A custom bootloader for the Raspberry Pi Pico (RP2040). Receives firmware updates over a communication interface, writes to flash, and jumps to the main application.

## Status

**Scaffolded — not yet implemented.** See `TODO.md` for the design decisions and implementation tasks.

## Prerequisites

- [Docker](https://docs.docker.com/get-docker/) and Docker Compose

## Building

```bash
cd bootloader/
docker compose run --rm pico-build bash /scripts/build.sh
```

## Flashing

From the repo root:

```bash
./flash.sh bootloader
```