First I wanted to thank you for writing this app, it's just great and I wanted to contribute by adding a patch to add an option to select the desired number of players (not minimum or maximum, but how many players are going to play the game). I also wanted to host an instance locally for me to use.
However, one thing I noticed is that you didn't add any license at all.
Would you mind to add a license so that others know how can they contribute and use your software?
Upon completing the ranking of your collection and visualizing your tiered collection you should be able to toggle the layout of the table between the now implemented horizontal view (image attached) or the new vertical view. So, instead of have the tiers as rows, they should now be the columns and the images of the games you go down these columns.
Image of the current ranking table layout (horizontal)