

It shouldn’t be hard to modify. I haven’t looked into it, but I assume that it looks for ID/class of HTML elements, so if you replace .post-listing
with a class you find by using RightClick - Inspect on the feed/post listing in your UI, it should work.
Here is what you are looking for, I found it by Right Clicking the post listing, and clicking on Inspect.
So, for example, if I wanted to filter comments, the rule would be (the . is there because it’s a class, I assume?)
programming.dev##.comment-content:has-text(Musk)
I haven’t tested it, but from my vague CSS knowledge, it could work like that.
I’ve been slowly starting to get used to Helix, doing a tutorial in either that or VIM (since it has similar keybinds, but a lot better interactive practice tools, like VimHero or VimAdventures) whenever I have time and feel like it, to get used to the motions and navigations. I still can’t imagine using it to actually code when I need something done, but I did notice gradual improvement in my efficiency. It’s more of a marathon, though.
In the last few years, enshitification was the final motivation that pushed me towards better habits, like self-hosting, discovering Fedi, stop watching YT, de-google, switch to Linux as a daily driver, etc. I’m kinda looking forward to finally being forced out of IDEs into Helix.