I should put together a blog post to share more, but unfortunately it is more "trust me bro" at this stage. You can see a few other comments where I replied: we do have subjective evidence that seems to suggest to me that we're moving much faster than we could've moved in the past.

Of course, it's not just shipping, it's shipping stably in a way that doesn't disrupt the day-to-day operations of the businesses we're working for. One client that comes to mind has 2-3 niche SaaS applications that they used independently for various workloads. We completely replaced 2 of those without any disruptions to their business in about 6 months (no, we did not replace it feature-for-feature; we just built what they needed.)