Their website says what they intend to do, but not what they're up to lately; the last blog post is from July and is fairly meta (process for discussion, not ex. "we're working on firmware this week"). Similarly, podcast last posted in February.
Sorry if that's a bit thin; more detail on what we're doing and why can be found in a (pre-COVID) talk I gave at Stanford[1]. We're definitely not a Deep Stealth company, but we've also been very busy building; expect many more details over the coming year!