Eberron shards have a different function. Khyber shards are most relevant to the bound elementals that power airships and such... Although siberyis shards could be involvedig airships require a house lyrandar mark of stormLike @Shardstone said, each type of vehicle had its own stat block similar to the approach in Ghosts of Saltmarsh, but the different components of the vehicle had “Action Stations,” where a person could spend the action on their turn to operate it. So one person would control the “steering wheel,” another would control the flamethrower, another could control the giant claw, and stuff like that. The vehicles were also fueled by Soul Coins. I assume the Eberron vehicles will mention they’re fueled by Eberron Dragonshards.

Dragonshard
Dragonshards are translucent stones with pulsating veins of color within them. They can be found in various parts of Eberron, and come in three distinct varieties, varying in color, location, and uses.[1][2] Dragonshards are used to enhance the powers of a dragonmark, or in the creation of magic...