Unfortunately, there seems to be no way to press buttons via blinking, only by "dwelling" on an item for a few seconds, which makes using my phone feel quite hectic and prone to to inadvertent inputs to me.
Now I could see a wink working! Left wink, right wink. And, with a wink, you don't lose tracking during the action (just half the signal).
This is basically the sort of “future tech” I imagined as a kid. We can now talk to computers and they talk back (ChatGPT, Apple Intelligence, etc) and flawless navigate our portable super computers just by looking at them.