Make gbrain omnipresent — the brain for everything

1. Build session capture — the highest-leverage gap. 3+ hours/day of iOS work currently goes uncaptured. Need either a parallel "ingest" session that reads build-session output, or a SOUL.md directive that weights ambient capture above execute-the-spec. 2. Voice notes — Nathan's most personal surface. iMessage audio attachments are unmined. Need a watcher or scheduled poll. 3. Mobile (iPhone via Photon) — already a hermes gateway target. The same plugin should work; verify and add to HERMES_DEFAULT_SKILLS for the Photon backend. 4. Calendar cross-reference — Obsidian daily notes already capture the day's events. A cron could diff ~/brain/ against the daily note and surface mismatches. 5. Cross-machine gbrain federation — Mac Mini (this) is the hermes server. Mac Studio is the iOS build machine. gbrain 0.42.42 supports federated remote sources; set up the Mac Studio as a remote source so its captures flow to the same brain. 6. Proactive recall — when Nathan is mid-task and a relevant brain page exists, surface it. The pre_llm_call hook can query gbrain with the user's last message and inject the top-1 hit as context.

The right architecture is ambient capture with explicit recall, never explicit capture with implicit recall. Every interaction in Nathan's life is a potential input. The capture layer's job is to notice without asking. The recall layer's job is to surface at the right moment. The user is the human, gbrain is the system; the user does the thinking, gbrain does the bookkeeping.

A multi-year compounding project to make gbrain the frictionless second brain — capturing every surface (chat, voice, calendar, email, code, browsing, files), every session (CLI, TUI, desktop, mobile), every interaction. The bar is zero-friction ambient capture — the user chooses nothing explicitly.