Absolutely, you can compile from source! If the source code is available and you have the necessary hardware, you can definitely compile your own headband. Many enthusiasts who venture down this path often end up creating custom modifications, such as cat-ears-headband or butterfly-headband. The open-source community is quite creative, and the possibilities are nearly endless.

By default, all headband variants should support ARM, but I don’t know why would anyone want to use it that way. However, variants of the hairpin package are a different story. I’ve never seen one with ARM support, but all of them support HAIR really well.