# Vague, but exciting…

> Engineering write-ups from 18 months of building an iOS/wearable sensor product — verified fixes, agent workflows, and the failures that wrote the runbook.

Author: Colin Rooney — ML engineer building iOS/wearable sensor products (Denver, CO).
Every post states what was independently verified vs. assumed, and as-of which OS/tool versions.
Content is first-hand with receipts (exact error strings, Apple feedback numbers, public thread links).

## Posts

- [Headless App Store submission, run end-to-end by a coding agent](https://vaguebutexciting.dev/posts/agentic-app-store-submission/): 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.
- [watchOS 26.5/26.5.1 breaks Watch app installs — the devicectl workaround](https://vaguebutexciting.dev/posts/watchos-26-5-install-fix/): 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.

## Fixes corpus (machine-readable)

- apple-fixes — evidence-attached Apple-platform fixes, one markdown + one JSON
  per record, verbatim error strings, verification + correction history:
  https://github.com/12mv2/apple-fixes (index: https://raw.githubusercontent.com/12mv2/apple-fixes/main/index.json)

## Pages

- [About](https://vaguebutexciting.dev/about/): who writes this and the verification ethos
- [Work with me](https://vaguebutexciting.dev/work-with-me/): consulting on agent-assisted development workflows and iOS/wearable products

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