Or sort all threads for a specific tag by points/date?
There is also https://lobste.rs/recent. I don’t recall offhand what the difference is between that and https://lobste.rs/newest, but I think it says at the top of one of those pages.
Sorry, my answer doesn’t have anything to do with tags. I guess I only read the subject of your post, not the body?!
I recommend also using the meta tag for asking the community questions.
As far as I know, there is as yet no way to sort by points, except when searching for keywords. Feel free to submit a pull request if you can and want to!
Unfortunately I do not know Ruby. I’ll create an issue though. Thanks!
edit: Can you sort a particular topic by the “hotness” instead of by date?