Hi

First, I have to admit that I'm one of those who can't do much without cheatsheets and documentation (too much systems, frameworks, languages and libraries to remember). I noticed, that when it comes to Concise I often have to check documentation for such basic things like justify and alignment. One uses "start" and "end", second "top" and "bottom". Things start to be strange when we change the grid direction, so i.e. "top" becomes "left".
Generally I would avoid using names like "top" and "bottom" for any flexbox system and stick with "start" and "end". What do you think?