I'm a dev that work in OSS Machine Learning and rely on a machine that runs all this server tech. Even when I use Docker, it runs a hypervisor based VM - impossible with ARM which will need an emulated VM. This all makes ARM dev machine a non-starter. Add to this the crappy quality of the MacBook Pro (I am now 2 keyboard failures into the MBP) and I have to say goodbye to my otherwise beloved Mac.
Years back the Mac took over my area of development. I remember going to a MongoDB conference in 2011 and looking around to see nothing but Macs in the audience - I was a bit surprised to see such a huge shift a trend that has only accelerated (even with crappy MBPs). Now I wonder how many of those folks will opt-out of Macs until there is a huge demand for ARM servers.
Apple doesn't get to make this decision for me, the market for servers makes it. Until the market moves I need AMD64 + a `nix OS. Maybe a Dell laptop and Linux - oh well...