The "move fast and break things" silicon valley microservices mentality hardly applies to spacecraft on planets months away. Before any change gets uploaded, I

The "move fast and break things" silicon valley microservices mentality hardly applies to spacecraft on planets months away. Before any change gets uploaded, I'd imagine it goes through days/weeks (possibly months) of simulation and analog testing. Not to mention the project requirements are not changing often and are going to be very clearly defined. As I'm sure you know, Agile shines where requirements are fluid and not clearly defined.