I think different categories of software require different mentality. It's ok for a user-facing innovative software to be built in the "move fast and break thin

I think different categories of software require different mentality. It's ok for a user-facing innovative software to be built in the "move fast and break things" way. On the other hand, it is totally inappropriate for a filesystem or almost any firmware. You need to strike the right balance for your use case between reliability and being able to deliver new things.