I've had it installed for a bit now -- it drops this tidy widget just above the price of an Amazon book, which shows availability for your library system, including eBooks.
One thing my library won't do is distribute DRM-free ebooks. They even put time limits on them ffs. Like I have to give back these imaginary fuckin' bits so someone else can look at them.
There are few things that piss me off more than DRM protected files.
PSA, libraries, counter-Amazon Afficher plus
@teslas_moustache @shoutcacophony and in my experience they're always DRMed.
thank goodness for de-DRM, which often saves the day