flutter-skill crashes on Apple Silicon macOS with `spawn Unknown system error -8`

[macdipu]

Environment

• macOS Apple Silicon (arm64)
• Node.js: v20.20.2
• Dart SDK: 3.11.4
• npm install method:

npm install -g flutter-skill

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Problem

Running:

flutter-skill --help

crashes immediately with:

Error: spawn Unknown system error -8
    at ChildProcess.spawn (node:internal/child_process:420:11)
    at spawn (node:child_process:762:9)
    at runNativeBinary (.../flutter-skill/bin/cli.js:125:18)

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Investigation

Architecture checks:

uname -m
# arm64

node -p process.arch
# arm64

dart --version
# Dart SDK version: 3.11.4 on "macos_arm64"

The package contains only Dart source files and no valid native executable:

dart/bin/server.dart

The launcher in bin/cli.js attempts to call:

spawn(binaryPath, args)

inside runNativeBinary() before fallback logic executes.

On Apple Silicon this throws immediately with:

Unknown system error -8

which prevents fallback to runWithDart().

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Additional Issue

Trying to run the Dart server manually also fails:

dart run bin/server.dart

Error:

Error: Couldn't resolve the package 'flutter_skill'

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