A new design[1] for a lightweight cross-platform programming environment that works on both computers and mobile devices. This time you can also modify its source code live while it runs (computers only).
The seed design constraint here was to structurally prevent the pop-up keyboard on a touchscreen from ever blocking my typing. That led to a multi-line commandline editor in the top half, fixing the non-editable output buffer in the bottom half. Independent commands/scripts then expanded in the only other direction available: left/right.