Minecraft Java does not have movable tile entities (Which is a fancy way of saying Moveable minecraft chests, hoppers, droppers, dispensers) - However with the Gnembon carpet mod, they are introduced and they work WELL. We now have cycling super smelters, TNT carpet bombers (That don't use TNT duplicators), pop up redstone turrets, hidden chest systems. So much possibility to play with!
CARPET MOD: rstoolss.info/long/video/sNeQ1aC1qKB9rG0
Filming channel: rstoolss.info