Verified fixes and engineering findings, with receipts — exact error strings, feedback numbers, reproducible steps. Every post says what was tested, what's assumed, and as-of when. Why "Vague, but exciting…"?

Structured, machine-readable fix records live in the apple-fixes corpus — built for developers and their agents.

• August 31, 2026 I rearranged my kitchen to fool my robot. It found the truck anyway
  30 bumps of a phone became 147,731 training labels, a 385-parameter model, and an honest experiment. Expensive sensors teach, cheap sensors ship: LiDAR + ARKit + accelerometer label the data; the model that ships sees only RGB.
• August 28, 2026 73% of a slow video render was cv2.VideoCapture seeking — a frame cache cut it 443s→69s
  Profiling a multi-segment OpenCV video renderer: cv2.VideoCapture.set(CAP_PROP_POS_FRAMES) is not O(1) — it decodes forward from the nearest keyframe. Decode once into a memory-guarded frame cache; output byte-identical (same md5), 6.4x faster.
• July 21, 2026 Headless App Store submission, run end-to-end by a coding agent
  The full App Store Connect API recipe a coding agent used to submit an iOS release unattended — build upload, screenshot API, review submission, state verification — and the runbook of prior failures that made it work.
• July 21, 2026 watchOS 26.5/26.5.1 breaks Watch app installs — the devicectl workaround
  Fix for watchOS 26.5/26.5.1 app installs failing with “could not be installed at this time” (ACXError Code=8 “Failed to create socket”, Xcode stuck on “Copying shared cache symbols” 403). Acknowledged Apple regression FB22807635; reproducible workaround: iPhone Bluetooth off + devicectl install over WiFi.