I really like this pattern and have been using it in the rewrite for vdirsyncer. One nice advantage is that an application can show me the whole plan for me to

I really like this pattern and have been using it in the rewrite for vdirsyncer. One nice advantage is that an application can show me the whole plan for me to review before executing it. This is basically what terraform did too. This pattern also makes coding and testing much much easier.