Missing from the title is "enough" for what? For any trivial personal project? Python, Ruby, PHP are each enough. There's not a need for literature about person

Missing from the title is "enough" for what? For any trivial personal project? Python, Ruby, PHP are each enough. There's not a need for literature about personal low-risk development or deployment. That said, Scalability? But at what COST? [http://www.frankmcsherry.org/assets/COST.pdf http://www.frankmcsherry.org/assets/COST.pdf] was a good note that orienting around scaleable technologies can be very inefficient- scalable does not mean either fast or economical.