Note to self: 1) Implement screenshot tool to provide motivation; 2) Implement the rest of myOS.
It's not that weird to be honest, if you consider a mockup applicable to 1). Mockups and rough design diagrams should be pretty much obvious and omnipresent. We often start from a visual aid and move on from that level to actual details.
Yes, I wanted to add emphasis to the usefulness of that, without seeming to be speaking to the parent writer.