I dont think you can do an alar “wrong” thats the magic of it. This might help you out https://forum.spells8.com/t/witch-challenge-altar-design/67531 Im just a beginner but for me personally I put my offerings on a dish and the cauldron is more for crafting. As my aunt told me once “you do you boo” I think the main spells8 site has some info about creating altars too. Have fun 