I’ve been innovating on bookmarks for decades. Money, receipts, paint swatches, entire spiral notebooks, ripped off corners of magazines… bookmarks are everywhere!
Audiobookshelf has become a key service in my self hosted stack. I use it primarily for podcast management and it’s been wonderful. I use plappa on iOS as my client and the offline support is stellar. I’m building a FreeBSD port for it too so it can have a forever home on my stable server.