Apparently the folks from the rreading-glasses repo accuse Chaptarr of being vibe coded, can find it directly in their README.

For the unaware rreading-glasses is a rebuilt metadata server for Readarr, also happens to be endorsed by Readarr/Servarr, just switch it out and you’re good to go. However, Readarr won’t receive anymore feature updates or bug fixes it seems.