Interesting write-up on the additional work of almost implementing a spreadsheet in the back-end! I'm curious as to what kinds of functions exactly are these.

In the article, you mention that "We chose to compute asynchronously in case computation takes too long or runs into a fatal error" -- coming from Excel, how do you handle errors? And how long exactly do these formulas potentially take? (As someone without a lifesci background, it's hard to wrap my head around the concrete parts)