You can just go into some embedded domain. I work in automotive and in the current project, we have a budget of ~2MB RAM. Also, you still worry about small amo

You can just go into some embedded domain. I work in automotive and in the current project, we have a budget of ~2MB RAM. Also, you still worry about small amounts at Google scale: > “It’s pretty slow,” Jeff said. He leaned forward, still relaxed. “So that one was a hundred twenty kilobytes,” Sanjay said, “and it was, like, eight seconds.” “A hundred twenty thousand stack calls,” Jeff said, “not kilobytes.” [...] In a sense, they had been occupied by minutiae. Their code, however, is executed at Google’s scale. The kilobits and microseconds they worry over are multiplied as much as a billionfold in data centers around the world. – https://www.newyorker.com/magazine/2018/12/10/the-friendship-that-made-google-huge https://www.newyorker.com/magazine/2018/12/10/the-friendship... If you are in a startup where you rather worry about product-market fit, of course such minutiae is not relevant (yet).