I’m working with a startup at the moment that has put all their investment into their customer facing app, but almost everything behind the scenes is built in s

I’m working with a startup at the moment that has put all their investment into their customer facing app, but almost everything behind the scenes is built in spreadsheets and low code tools. Can’t spill too much about the company, but think something like “get flowers delivered within 30 minutes via a fancy app”, but not flowers. Without building in this way there is no way they would be growing at the rate they are - they would still be writing their MVP (they are now valued at >$100m in year 3, and are still supported entirely by spreadsheets as the investment in terms of focus is towards anything customer facing - they know they need to sort everything else out, it’s just everything has to be prioritised). Also their ops are still evolving so quickly that any investment in writing code to support ops is likely to slow down ops change (who need to be able to respond to issues nobody has seen before).