>not only could I not download the entirety of wikipedia without paying but the site also said I couldnt browse wikipedia locally on the raspberry pi.
I don't know which site they sent you to, but Kiwix is free, always has been and always will be (that's what free software is about): it only relies on donations. The installer's user manual is here.
The one configuration where you could be asked to pay is if you want the Raspbian image to be built on Kiwix servers rather than your own computer (saves a lot of time).
Kiwix is already available on macOS but it's managed by a lone (yet awesomely dedicated) volunteer so while it's great and does most of the job it is clearly not on par with other versions (I think he's more focused on the iOS port).
As for Synology, this came straight from them so I'm not sure what their plans are.
PS perhaps I should clarify that the Store version and the Electron version are very similar, but the main difference is that the latter doesn't keep itself up to date automatically, whereas the Store version does. However, it is easy to update the Electron version manually (just install a new version over it).
I should also clarify that Kiwix JS Windows is a fast and light version of Kiwix, particularly optimized for Wikipedia (though it will read many other ZIMs too). However, it doesn't have quite the full feature set of the main desktop Kiwix client.
Full link is here: https://www.kiwix.org/en/what-to-expect-from-this-years-google-summer-of-code-kiwix/
And why TF would Reddit put the donate picture as default thumbnail?
> I deleted those files (for no particular reason)
I think we might be onto something already. If you haven't run any update on Kiwix, then maybe another install you did during that time might have caused conflicts. Have you tried to reinstall Kiwix?
What device are you on (android? Windows? Linux? iOS or macOS)? What were the files that you deleted? What exact version of Wikipedia were you looking at (language, variant (maxi/nopic), and date)?
There's a blog post on how to open a good issue: https://www.kiwix.org/en/how-to-report-a-bug/
Kiwix is mostly run by volunteers, so it really helps to help them with as much info as possible from the outset.
This is the SD card that I'm using here: https://www.amazon.co.uk/gp/product/B08GYKNCCP/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
What do you mean that there may be a maximum file size of 2 to 4 GB? The size on the card is 128GB so why would there be a limit?