How do I set up an instagram phone farm for my Instagram account automation setup? Looking for beginner advice

Hi all, I have 4 Instagram accounts that I want to run automation on to help grow my personal brand/business. Based on feedback from other BHW users, I should get a separate android phone and purchase a 4G/5G SIM plan. After I buy the android phone and 4G/5G sim plan, how do I run the Instagram automation setup?

I know of a few Instagram automation softwares but they are on desktop... so how would it work if I had a mobile device? Do I connect my mobile device to my computer to run the automation? Or how does it work?

I want to fully understand the logistics and step by step process of how it works to automate AFTER I have the android phone and 4G/5G sim plan. Can someone help explain this in a very easy to understand way for a beginner like me? Thank you so much!

But why would you even need automation for 4 Accounts, Its expensive when you just do it for 4 accounts, Its feasible only when you have a minimum of 20-100 Accounts.

My suggestion is to outsource the work to any VA or Service Providers, 4 Accounts is peanuts you dont need automation for that.

The Instagram automation process on mobile phones doesn't require a fixed connection to a computer; it works directly through software or applications that run in the background on the device itself.