Get the shortcuts right hehe

In all seriousness, what I’d worry about the most is Sheets/Excel is a Swiss army knife and it’s used for tens if not hundreds of different use cases. Find out which use case/persona this programmability angle is super useful for and go after that crowd ruthlessly. Strip away anything that could be a distraction, if not you’ll be pulled in all directions.

You don’t eat GSheets all at once, you go bite by bite.

Also, given how many startups have waged war with spreadsheets probably best to watch https://youtu.be/GMIawSAygO4 for an introduction to the concept of “tar pit ideas”.

Then at least you know what you’re getting yourselves into :)