Kyle Cho — Notes Lessons from operating production systems. https://kylecho.com/notes/ 2026-07-20T00:00:00Z Kyle Cho no one has to agree https://kylecho.com/notes/no-one-has-to-agree/ 2026-07-20T00:00:00Z How two people can edit the same document with no server deciding the order: why naive position-based merging breaks, what operational transform and CRDTs each do about it, and a live two-replica demo you can type into. smoothness is latency https://kylecho.com/notes/smoothness-is-latency/ 2026-07-19T00:00:00Z Why remote cursors feel broken, and the ~100ms of deliberate delay that fixes them: send-rate discipline, entity interpolation, and a playground that runs your own cursor through a simulated network. await isn't free https://kylecho.com/notes/await-isnt-free/ 2026-07-18T00:00:00Z Awaiting cached DataLoader hits looks harmless in code review. Under load, the microtask hops, promise allocation, and graphql-js's async path add up.