bugcat: My first idea was that we could play like this.
However, after more thought I became concerned that wasn't sente against the side group, since White could respond to Black's kosumi as below, after which Black's path to life seems very unclear.
After sweating over this for a while, I came up with a fancier threat. This is more of a tsumego.
A squeeze? It's not as good for Black as the actual solution. which is elegant, but this way of play does keep the game going.