Customers on Velocity plans have the option to select the machine type on which their Workflows run. This is frequently done on the Stacks & Machines tab of the Workflow Editor. But what if you want to manage your Workflows in the bitrise.yml file that's stored in your repo?
Include a machine_type_id attribute under the bitrise.io section of meta. This is configurable on the Workflow level. Unfortunately, you can't set the default machine type on the app-level
Below is an example bitrise.yml snippet.
meta: # workflow specific