This is fantastic for e.g. EC2 where Arch Linux AMIs are hard to come by. (where "hard to come by" just means that they're available at https://www.uplinklabs.net/projects/arch-linux-on-ec2/ but I don't know who uplinklabs.net is nor whether I should trust their AMIs)
It really needs to be easier/cheaper to run your own image on EC2. I should try again now I have enough upstream capacity to upload the disk image - but don't you then pay for the AMI hosting forever?
Edit: looks like the scripts / source to create the AMI are available so you could build it yourself if you wanted. Bonus points if you can build it on an EC2 spot instance and deploy it, CI/CD style.
