Warning: This mod is very glitchy at the moment and has a limited amount of blocks
This mod adds a couple of Minecraft blocks that snap to each other just like foundations (and can be used as such). You can unlock them by researching the Minecraft Schematic in your HUB in tier 1. For now unlocking the research and placing blocks doesn't cost resources but this will change. The source code for this project will be published later.
Here is a demo: https://youtu.be/eylTbVh20JU