not decided. the card carries numbers so the decision is not made from a
readme — which is what produced the first, wrong estimate.
the finding: next.js is not actually there. one import in 14,822 lines
and it is type-only, so there is nothing to strip. the fork line then
falls on a file boundary — page.tsx and lib/ai.ts are ours (~3,600
lines), the rest vendors (~11,200), and the split is meaningful rather
than convenient. buildPrompt/effectivePrompt are pure functions, so the
export point is a call rather than a bridge.
against it: 37 commits, three days old, 22 of them landed today. two
authors. 'vendor and track upstream' assumes an upstream that has
settled and this one has not started.
so the cheapest next step is an issue asking upstream for an explicit
seam — depend rather than fork. the answer changes what gets built.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>