Hi there,
I think that the Lectron system relies on the very good build quality of their modules and also on the simple but effective fast method to lay out your circuit as a readable diagram.
So, a major key would be surely the sturdiness and the electrical contact.
Also, the ground plate is a good idea as it keeps the wiring to a minimum and helps the projects shielded from noises.
But surely, a new concept of grounding could be used, for instance, modules could be designed in such way that there are contact pins at the component’s sides but also, when needed, a central ping for grounding.
Therefore, a grid could be used with pins and contra pins to enable contacts between modules.
I also have a few ideas how to accomplish this, but I would like to hear other concept ideas as well.
Many greetings,
Frank