the old motto of “launch and iterate” is particularly relevant in SRE software development projects. Don’t wait for the perfect design; rather, keep the overall vision in mind while moving ahead with design and development. When you encounter areas of uncertainty, design the software to be flexible enough so that if process or strategy changes at a higher level, you don’t incur a huge rework cost. But at the same time, stay grounded by making sure that general solutions have a real-world–specific implementation that demonstrates the utility of the design.