If you're a nerd like me and have just bought a #kobo #elipsa #ereader and want to set it up offline, there's an amazing repo by Michal Ulianko which automatically sets up sideload mode, firmware updates and handwriting recognition for you.
You need to supply it with firmware, iink and fonts files, modify the script a little to install to the correct path and only install the things you actually want but then it just works.
Also shoutout to #Kobo for making their device firmware non-shit. That's not a given these days.
You just say "set up without wifi" and then the ereader presents itself as a VFAT USB disk, housing the entire config state which allows you to do all of these modifications without ever connecting to the internet.
Their update and installation mechanisms are also extremely simple and effective: Just unpack files into the .kobo directory. I really appreciate that.
Atemu
Felix