Edit: Nevermind, same tweet seems to have been quoted across a bunch of different other news sites. Apparently Blur Busters claims an improvement, I'll try it out and see how it is in some other contexts.
If setting it up yourself is too much work, you can use other public instances. One such instance is called xcancel. Load the Xeet as normal, then simply append "cancel" to the domain name before the period in your URL bar and hit enter :)
I’m not sure how Twitter ultimately blocked them. It would be pretty embarassing (for Twitter) if it were a simple IP block of the Nitter.net servers, but that doesn’t seem too out of whack with Musk’s history of litigating bot behavior…
I suggest not making any effort to use the site - rather just ask people to primarily share content from X by copying rather than linking. This removes the need to interact with it both for yourself and (more importantly) for others.