Grid Beam
I mean, it's cute but I'm pretty sure most DIYers own a drill. Or wood glue.<p>"A bunch of holes in a matrix" is useful if say you're designing a wall where you want to attach different things at different positions, but for anything else permanent you can just... buy the raw stock and drill them at exact spot you <i>need</i><p>My experience with something smaller scale (Makerbeam, screws used to press fit instead of holes so it can be screwed together at near-any position, not just at  hole position) is that in the end it's nice to prototype but there will be inevitably either too short or too long piece and when you need to start cutting them the benefits go out of the window<p>Having holes everywhere isn't also great from furniture perspective, harder to clean and might not exactly be aesthetically  pleasing