I don't want a website open all the time. I don't want to have to be connected to the internet to read my catalogue of saved articles. I want native performance

I don't want a website open all the time. I don't want to have to be connected to the internet to read my catalogue of saved articles. I want native performance, not "good enough" or "not really an issue" performance. I want 100% integration with my system; I want AppleScript-based automation. I want my system's accessibility settings to determine how I use the content, not depend on how some website's CSS handles my use cases — not that a lot of websites, particularly SPAs, are made such that VoiceOver can deal with them. Those are my reasons why I'd want a local desktop app, anyway.