It may be a bit costly at first to use this mod but its results are incredibly beneficial. You’ll need to craft growing blocks that the ores will need to actually grow on. They won’t grow on dirt so these blocks are crucial.
Then create your farm as you would. The ores grow in reed form and are crafted using reeds in conjunction with its respective ore. They also don’t need water so that cuts down on the required resources.
There are different ways to acquire the ores once you’ve harvested the reeds. Ores like Coal, iron, gold, diamond and emerald need to be placed in a large square to get a single ingot. This is most likely a way to limit the amount of yield you receive due to rarity. Ores like Lapis, obsidian and quartz need to be placed in a compact square. And ores like redstone, glowstone and clay can simply be placed alone to get a single ingot out.
This is a great alternative to standard mining in the game. If you’re not much of a fan of mining then this mod seems like a better option than simply turning on creative mode. It still requires you to work for your materials and won’t cheapen the experience if you still want to maintain a survival world.