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e22b887d7c
initializeLibrary ran NimMain only on the thread that won `initialized.exchange(true)`; concurrent first-time callers fell straight through and used a half-initialized Nim runtime — a heap-corrupting race when multiple foreign (e.g. Go) threads create the first context at once. Add an `initDone` flag the winner sets after NimMain; the others spin until it is set before proceeding. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
nim-ffi
Allows exposing Nim projects to other languages
Example
examples/nim_timer is now a self-contained Nimble project that imports nim-ffi directly.
Use cd examples/nim_timer && nimble install -y ../.. && nimble build to compile the example.