What's new
docker pull ghcr.io/new-usemame/calibre-web-nextgen:v4.0.99
(or :latest)
Kobo subtitle now syncs from your Calibre library
If your Calibre library stores book subtitles in a custom column labeled subtitle (common for non-fiction and academic books), v4.0.99 surfaces them on your Kobo device. The Kobo sync protocol always had a Subtitle slot — stock CW and the prior fork never populated it, so the subtitle existed in Calibre but never made it to the device. Now it does.
If you don't have a subtitle custom column, nothing changes — Subtitle is sent as empty string and the device falls back to just the title.
Backports janeczku/calibre-web #3358.
Credits
Thanks @dotknott (janeczku PR #3358) for the original idea and the upstream PR.