While Apple's felt iPad Pro keyboard cover is a marvel of comfort given the design constraints -- there's nothing like the clicky-clack of mechanical and since I've gotten an office to use as a dedicated writing space I wanted to see if I could get the mechanical keyboard I've used for years with much delight on my Mac to work with the iPad Pro.

Apple sells a 'Lightning camera adapter' that, much to my surprise, will let you use it as just a regular USB input for an iPad. (NOTE: Apple has now made this use-case explicit by selling a powered USB adapter for iPads) This led to the first iteration of my writing setup: