First of all I want to congratulate the keiboard.io team for this almost perfect keyboard which has a very good build quality. The software seems to be under a very active development, so I am convinced that in time it will provide all the necessary functionalities, such as macros, etc.
However, I consider that the advantage of such a small keyboard is not the fact that it is portable as the fact that paradoxically fewer keys enables more accuracy. I think it’s because the keyboard is so small my fingers don’t get “lost” as easily. This automatically leads to increased comfort and also increases the typing speed, things that I think are most sought after by heavy typists.
From this perspective I consider that Atreus keyboard has a major flaw, namely the center columns staggering which is very very wrong, these instead of being lowered are in fact raised above the adjacent columns. This forces (as can be seen in this video) the hand to move sideways, which is not comfortable at all.
By lowering the central columns, the CTR and ALT keys can be accessed by the natural extension of the thumb finger, (see the attached file and video) which is much less prone to errors and also increases comfort and typing speed.
Moreover, this lowering of the central columns will increase insignificantly the total size of the keyboard and will even allow the eventual addition of two more keys that can be used for layer changing or why not for macros.