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Git leaves the paywall — the pivot ruling lands in the design corpus

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12-editions gains the dated PIVOT note: git integration is tier-independent
— every tier composes the git stack on git-mode boards — because the
base/Pro split is being re-decided and git isn't going to be it. The
subscription machinery stays built and tested but dormant; the free-only
postures (inert .git, the Pro pointer, the absent Git tab) are retired.
What the pivot does not change, recorded in 12 and 13: git stays opt-in
per board — creating a local repository is the user's choice, never
auto-initialized — and boards without app-managed git keep conventional
native undo/redo. 06 rescopes to every tier; 03's Git tab reads its
same-day membership ruling through the pivot (the strip still asks the
posture, it just never hears absent).

Claude-Session: https://claude.ai/code/session_01SR4XGjmBE16ZUYWpfFHXwY
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rzen
2026-08-07 20:21:16 -04:00
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# Native Undo
The undo/redo substrate for **every board without app-managed git, in every tier** (re-ruled 2026-07-31 — the provider follows the board, not the tier alone; formerly free-tier-only, which made a Pro upgrade *remove* undo from mode-none boards): the free tier binds it everywhere (any `.git` inert — 12-editions.md), and Pro binds it on mode-none **and repo-nested** boards alike (the repo-nested no-undo case retired 2026-07-31: leave-strictly-alone concerns *git*, and this stack never touches git — memory-only, journal-free, session-scoped — so what repo-nested denies is app-managed history, never ⌘Z; the upgrade story is thereby exceptionless), switching to the git provider (06-history-undo.md) where the board's own git exists. **Add-git swaps the substrate mid-session** — the commanded flip discards the in-session native stack and seeds the git trail from the root commit, the branch-switch discard-and-reseed precedent applied; a subscription lapse still never interrupts (12). The design problem is not NSUndoManager itself — it is native undo over **files-are-truth**: the disk can change underneath the stack, because the app is not the only writer.
The undo/redo substrate for **every board without app-managed git** (re-ruled 2026-07-31 — the provider follows the board, not the tier alone; formerly free-tier-only, which made a Pro upgrade *remove* undo from mode-none boards). Since the 2026-08-07 pivot (12-editions.md — git left the paywall) the tier axis is gone entirely, and one thing the pivot does **not** change: git remains **opt-in per board** — creating a local repository is the user's deliberate choice (add-git, 06), never something the app initializes for them — so a board whose user never opted in keeps this conventional stack for good. The substrate is the board's mode alone: mode-none **and repo-nested** boards bind it (the repo-nested no-undo case retired 2026-07-31: leave-strictly-alone concerns *git*, and this stack never touches git — memory-only, journal-free, session-scoped — so what repo-nested denies is app-managed history, never ⌘Z; the upgrade story is thereby exceptionless), switching to the git provider (06-history-undo.md) where the board's own git exists. **Add-git swaps the substrate mid-session** — the commanded flip discards the in-session native stack and seeds the git trail from the root commit, the branch-switch discard-and-reseed precedent applied; a subscription lapse still never interrupts (12). The design problem is not NSUndoManager itself — it is native undo over **files-are-truth**: the disk can change underneath the stack, because the app is not the only writer.
## Rules