| blog | oilshell.org 2022-03-12 (Last updated 2022-05-25) This post was called Backlog: Software Architecture until I edited it and saw a coherent theme emerge. It elaborates on narrow waists: an idea in #software-architecture that relates to networking, operating systems, language design, compilers, and distributed systems. Another title I considered is An Overview of Software Composition at Runtime. That is, you can contrast these two styles of building software out of parts: Fine-grained sta...