Can't wait to get this & have TrueNAS+Jellyfin up & running on it, certainly beats having to buy so many addons for the Pi & still not have a super reliable build.
One quick way to improve results greatly is to ask questions with 2/3 chunks & in the lookup for these chunks mention the IDs of the other chunks, qdrant allows for easy metadata addition. So just generate a synthetic question bank & then do vSearch against the same instead of hoping for the chunks to match up with user questions.
What I wished browsers on Android would do is scroll pages with volume buttons and close pages on double tap or some combination similar to screenshot ring.