cart library google are not my friend

Hello,

first i love CodeIgniter i make more than 10 website with it and so many bot for manage my servers.
i never use it for sell product and after search on this forum about cart i see many posts saying on google they are a lot, i have found flexi-cart that's it.
many others cms, also a lot of library using composer but i cant use composer for this project it's sad.

I don't know witch choose, i need cart, delivery are not need, payement i have my own lbrary.

So if users have found other library we can use in codeigniter it would be great to give name or link.

Thanks in advance for your help.