@ploum it indeed mostly is. The entire framework and all (see https://gitlab.com/IzzyOnDroid/repo/). There were some contributions, and I got some help on questions – but for the most part (95%?) it's just me… Same with the companion site at https://android.izzysoft.de/ and my eBook server at https://ebooks.qumran.org/ (see my profile here). Glad to read you find it helpful! 😍 @aaribaud @SylvieLorxu @LenticularCloud