Yes totally fine with improvements to the logic.
I am also happy to amend the logic so you can bypass the pre-flight checks. Eg:
./launcher --no-check bootstrap app
This will require quite a few changes internally, but should allow you to simply alias it without needing to fork the launcher script.
I am against supporting 0.9.1 cause you will be in for a shock when your containers stop after upgrading to 0.10, I am fairly confident this will not be fixed with the 0.11 upgrade, the internal design changed in a breaking way.