In the November 2026 Ask HN thread, developers shared a wide range of side projects and tools, including a YouTube pitch-shifting extension, a Google Local Service Ads-integrated CRM for field-service businesses, a singing-training app, and a macOS document library that indexes files in place. Other highlights included open-source public transit software used by major cities, LLM-powered sunset alerts for San Francisco, real-time meeting speech feedback, an AI loan-servicing platform, and a fresh attempt at the Netflix Prize using LLMs.