Greasy Fork is available in English.
A handy toggle for a familiar desktop experience for lemmy. Quickly switch from {instance} to o.opnxng.com/{instance} and back
Links to a gist, doesn't actually switch...
Looks like mlmym.org has been replaced with a redirect to that gist you mentioned, which means my userscript effectively stopped working. See also https://old.reddit.com/r/RedditAlternatives/comments/164nzhy/psathemlmymorgoldredditlayoutforlemmydemo/
I'll see if and how I can fix it. Thanks for letting me know.
Found a working alternative, so it should be working again. Let me know if you're still running into issues after updating the script.
@tordenflesk, since you took the time to leave a review, I'd appreciate it if you'd let me know if my fix worked for you (and update your rating accordingly). Thanks!
Links to a gist, doesn't actually switch...