I don't think people should downvote this Linux-related content that's in a Linux sub just because it's been posted on different servers in the Fediverse. People are too free with their downvotes.
Hardly, I'm directly addressing your statement that case insensitive is intuitive to users, grandmas or otherwise - I give examples where it's not initiative or obvious which filenames match. I didn't mention ease of implementation at all.
The principle of least surprise is an important UX consideration, and your idea of effectively introducing collation and localising which files conflict is just trading one problem for another set of problems and suprises (e.g. copying directories between drives with different settings).
Databases have different case-insensitive collations - these control what letters are equivalent to each other. The fact that there's multiple options should tell you that there's no one-size-fits-all solution to case insensitivity.
This issue is only simple and obvious if you don't know enough about it.
It's quite good for letting you know about things you didn't know you could do, but sometimes it tells me I'm wrong because I'd do it a different way - e.g. I'd go to line 13 by :13 but it wants 13G.
Also, from within helix you can do space ? to get the list of commands and any bindings they're on.
edit: also, FYI Helix and similar are modal, not modular (although there is a plugin system on the way).
Most of the manga I have is amateur translated stuff, so the metadata quality varies with release groups.
The graphic novels are generally retail releases, but sometimes I still want to edit to get rid of marketing words (e.g. the title might mention how it's now a Netflix series or something).
The latest Kindle update broke the jailbreak even if it was installed, so you'll need to stop updates. You could just leave it in airplane mode, but not being able to use the internet to pull down books from your Calibre-web server means you may as well just send books via Calibre.
I'm planning on getting a Kobo Clara BW when my Kindle dies (it's currently got holes at the corners and a few dodgy-sounding rattles so soon™). Then I can use Koreader+Calibre-web to download books and sync read state like you can do with Amazon.
So your process here is get comics -> comictagger -> upload to server and kavita, correct?
Pretty much, apart from that I often add them and only fix if necessary, e.g. they're not going into series properly.
I went with ntfy as well - you can set the different levels to alert in different ways and my max priority is set to always ring even if the phone is on silent. Mostly I use max prio as a find-my-phone tool, but there are real alerts that would use it.
Also these can be good sources: