Pretty much! It doesn’t have to be a computer poll, it can be just your opinion, or a hybrid.
I do a computer poll, because a) I don’t watch enough games to make an informed ranking and b) it’s a fun exercise in coding and tuning the algorithm(s) for me.
You also don’t need to share your ballot in the comments, but I also enjoy sharing and explaining what my algorithm is doing and if/where I disagree with it.
It looks like one of the ballots double voted Notre Dame (9 & 10), Kansas State (19 & 21), and SMU (18 & 24), giving them an extra 16, 5, and 2 points respectively (if you remove the lower ranked).