I use it all the time, pretty handy. Sadly, as people mentioned the original developer passed away and the community needs help, especially to port to manifest V3.
For instance, I use to:
redirect new reddit site to old.reddit.com
I keep a blog on wordpress.com, but I really dislike their new blog admin interface, but the interface one can still be accessed , so I redirect to there to edit my posts on the old interface
I use some alternative front-ends, like imginn.com, which is alternative front-end to instagram, so I set to redirect links there.
Redirects from translated versions of Google or Microsoft documentation to the English one. The Microsoft ones are okay-ish but I strongly prefer reading the original version. And the Google ones are a patchwork of machine-translated nonsense, "powered by Google Cloud Translation API"
