The Day Local AI Caught the Cloud: ds4, DeepSeek V4 Flash, and What Just Changed for Devs

If you write code for a living and you've been watching the local-AI space, May 9, 2026 is the date to circle. Salvatore Sanfilippo (yes, the guy who wrote Redis) shipped ds4 — a few thousand lines of hand-written C with Metal compute kernels, built ...