How to make an account farm

From what I understand, there are two ways to make an account farm. Either you make the accounts yourself with different proxies and devices, or you buy them for cheap from other people.

I think the second one is more popular.

What else needs to be done to prepare it?

It could be for any social media site like Instagram, Twitter, TikTok etc.

I'm just asking by the way. I have no use for a farm right now.

People make their phone farms as well

If you have the budget, purchasing accounts is recommended as it will get you to where you have a decent farm faster with less headaches