Sorry. No, I wasn't referring to JIT Manufacturing...
It was merely a tongue-in-cheek to mean just build what's needed right now in front of you, then get it working at scale once there's an actual needs to scale. This is in contrast to starting from day one spending most of your time thinking of scale, then building everything so that it can infinitely scale (along with the complexities that come with it), only to find out that you have 8 users and your data can fit entirely in memory.
It was merely a tongue-in-cheek to mean just build what's needed right now in front of you, then get it working at scale once there's an actual needs to scale. This is in contrast to starting from day one spending most of your time thinking of scale, then building everything so that it can infinitely scale (along with the complexities that come with it), only to find out that you have 8 users and your data can fit entirely in memory.