Suggestion

I was recently reminded of the nether reactor, a bygone structure from the 2010s version of minecraft pocket edition. I had the idea that it may be cool to implement into Immersive Portals, perhaps as some way of enabling a 3x3 or 5x5 chunk region to have dimension stacking, enabling certain farms to be made, and enabling easier access to the nether in worlds that don't have dimension stacking world-wide. My thinking was it could be crafted with nether-specific materials like blackstone, therefore requiring you to build a portal at least once to gain access to the structure

MiniScaled mod provides similar functionality https://qouteall.fun/immptl/wiki/MiniScaled.html