My concern for TTFX is the case when X is something infrequent but sensitive to latency? This a ridiculous example but when it is time for the anti-collision feature on my car to kick in, I want it to run, not compile. I think the right answer is to run a bunch of tests to get all the paths compiled and then build a new system image. But I haven't found a ton of guidance on how to do that. Seems like a perfect pipeline task.