ink@6 has a devtools.js module that imports react-devtools-core. It is
only loaded at runtime when DEV=true, but Bun's static bundler still
tries to resolve it at compile time and fails with "Could not resolve".
Marking it external lets the compile succeed; the dynamic import path
is never taken in production.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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