One ROM's hardware and software are fully open source and available to download from github. You can build your own One ROM or have them assembled using the files provided, adapt the hardware and software for your own purposes, or buy pre-assembled One ROMs from the following retailers:
packom.net is the piers.rocks online store. One ROMs are shipped from the UK, to Europe, the US and worldwide.
If you sell One ROMs, please get in touch via GitHub discussions to have your store listed here, or reach out to piers.rocks directly.