Fair enough. I actually switched from Readwise to Omnivore, as I found the Readwise workflow to be quite painful. I use it for getting things into Obsidian, so I don't use the re-surfacing features etc.
With that minimal self-hosted version, do you know if you can log into it using the firefox extension on linux? The only client they mention is the iOS one.
I've been meaning to host something like this. Tried to do it with wallabag, but couldn't be arsed to set-up and SMTP server just for the confirmation email.