One of the reasons haven’t included that option yet is unsure how it would work. Think it’s probably likely that there will be some stacks need the --instance option and some that do not. The option may have to be smarter or maybe also be able to take in a config file that tells terraspace how to and when to handle and use the instance option. The config file could be conventionally and or explicitly specified. These are just stream-of-conscience thoughts currently.
Will consider thoughts, ideas, and PRs. Of course no sweat either way.
Related: https://github.com/boltops-tools/terraspace/issues/124
