At the present time, you can add only integer numbers to each work, but some work are intended to be floating ones (4.5). You can migrate the work to Wikidata and then modify in there the number from 4 to 4.5, but technically that should be possible in inventaire directly.

There are 2 issues:

Input

Currently, the ordinal input takes only integers, which works for (I guess) around 95% of cases, and thus correctly constrains to input the right value. For remaining cases, there could be the option to toggle to a free text mode. I'm not sure how the serie cleanup could implement such a free text mode, as its serie filling feature relies on ordinals being integers.

Serie display

Sorting integer or floating ordinals is trivial. It gets more complicated with Roman numerals or other notations. Is there a generally recognized way to approach this problem?