Bluetooth adapter suggestions?

I’d love to be able to use my Model 01 via bluetooth, and recently started looking around for options. Thus far, the only adapter I’ve seen that converts a USB keyboard into a HID bluetooth device is over at Handheld Scientific (and not usb c :frowning: ):

I’m assuming, what with lights and all, this would need to be plugged into a battery of some kind…

Has anyone out there already found a good solution?

handheldsci has posted a video on how to use the adapter with the Model01, see The Model 01 is a USB keyboard and does not have Bluetooth