> ## Documentation Index
> Fetch the complete documentation index at: https://docs.flightportrait.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Open source

> The firmware, the protocol, and the supported paths around our server.

The firmware is open, the protocol is published field by field, and
the paths around our server are supported. Three ways in, by how much
you want to own.

## The firmware

Read what your frame runs. The complete ESP-IDF source, the
provisioning flow, the download verification, the sleep logic.
[The firmware](/diy/firmware).

## Bring your own server

Keep the frame, replace the cloud. A stock frame can be pointed at any
server that implements three HTTPS endpoints, from the pairing flow,
with no toolchain and no reflash. A complete reference server in plain
stdlib Python ships in the repo. [Bring your own server](/diy/byos).

## Build your own frame

No frame at all: an ESP32-S3, a 13.3 inch E Ink Spectra 6 panel, and
the same open firmware. [Build your own frame](/diy/byod).

## The license

The firmware and the network stack are Apache-2.0. The one thing that
stays ours is the art: the renderer that composes the daily poster is
what you are buying when you buy a frame. Everything the frame needs
to exist without us is public.