I have some needs, some free time and some claudes token on hand so I have made a little script for greasemonkey and firefox to show my backlog on the site.
If this is against your TOS (the IA part or other) feal free to remove the post.

My needs and what it do.
I have a lot (for me) series in progress and I mainly read them from the mobile app. But I sometimes read from the website too.
My problem is the lack of reading progress to find where I am in my reading.
The Continue Reading is missing most of my following series with some unread part.
It had pilled a little lately so it is a little complicated so I need to switch between the app to see the progress and the pc to read.

So I have made a little ugly script to help me.
https://github.com/Zhufazan/jnc-backlog-script

I would love to see something like that in the web site (but prettier :) )