Yeah, this one took me a bit as well - just solved it though.
That being said, obviously some spoilers follow.
So if you're reading this and still want to solve it by yourself you want to stop reading now.
Really... I mean it..
Alright, that's enough warnings...
In that screenshot you're exactly where you need to be. Push the left block up one, push the right block around to bring the right block up one space. Then it's basically solved.
Ah -- just a joke about the delightful ubiquity of that one level from David Skinner's microban level set. It's like 'The Lick' in Jazz music and crops up all over the place in sokoban games. Which I think is testament to its design. I just thought it was cool that all of the novel mechanics built that level within the larger level.
Oh, lol. I must have been tired when I did that level. I spent so long trying to figure out how to get a gravity block through that barrier that I didn't even recognize the Microban level 1 sitting right there in the "end game" (I'd forgotten Microban, but I've seen that as "level one" in almost every variation...)
I did appreciate the Sound Of Silence parody though. That was well done.
Lines 3-6 take on so much more meaning now too, that I realize I have to rediscover the solution to it every. single. time. 😅
