> For the complete documentation index, see [llms.txt](https://docs.macchina.cc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.macchina.cc/product-documentation/m2-docs/detailed-reference/open-source.md).

# Schematics and Source

[The schematics for the M2 boards are open source on GitHub](https://github.com/macchina/m2-hardware)

Note: Make sure to refer to the **R3** version if you have a "Release" M2 board. **R2** refers to "Beta" M2 hardware.