Reading Project LightSpeed: Rewriting Messenger to be faster, smaller, and simpler with approving nods. I like how this article explains the motivation behind the change and I also agree with their choices: “When building a new feature, it’s often tempting to build abstractions on top of the OS to plug a functionality gap, add engineering flexibility, or create cross-platform user experiences. But the existing OS often does much of what’s needed. “ I am also a big fan on SQLite which they use extensively