Dash downleft on this chair in the background to start a hyper in the next screen,
buffer jump after transition, hold jump and upleft dash on at the start of this bookshelf to set up the cb.
thanks jacks :D

Bonus cue for this coyote super, jump on this skull and you shouldn't die.
For the turnaround corner grab, try to use a crouched jump and press jump + right at the same time.