I was interested in the Delgato Stream Deck but put off by the price. I see there is much interest in it in this forum and rightly so, it looks like a great piece of equipment.
But Mac users of Dorico will be interested in a cheaper rival: FullControl which is available FREE at the Apple Store or in a slightly better version for a couple of quid. It works by using an iPhone or iPad as the macro keyboard, and can cope with any shortcut whatever, on any and all of your applications. You can program it yourself: it already knows most of the available shortcuts in all your apps, and you can make your own new ones so long as they work in the relevant app.
Drawbacks? Choice of icons is fairly restricted, and there is no obvious manual or other detailed instruction, but it is easy to figure out with a little commonsense. It is described as a remote control but is best used along with your workstation. I have already used it with Sibelius and will get round to Dorico some time.
I have no vested interest in this app by the way, but it has surely got to attract Mac users.