Yeah, just recently started self hosting FreshRSS instance. Before that i used Newsboat, first entry on its database is from 2020/09 so been a while in use. But basically i use it for my news reading, linux distro news and used to collect twitter feeds there but now…
Give it a go, easy way to gather all news feeds/blogs/basically anything you want to read in one place!
I had this picture in my head that sqlite-manager by lazierthanthou was still available, but now looking into it seems like it has been abandoned for quite some time. My bad! But about this “new” add-on i do not know.
For command line use you can use the binaries like @abff08f4813c said, which can be found here or some gui program like for example DB Browser