@github/copilot@1.0.31 native binary (copilot-darwin-arm64) crashes with SIGSEGV on macOS arm64, CLI exits silently with no output

[celorodovalho]

Environment

• OS: macOS Darwin arm64 (Apple Silicon)
• Node.js: v24.14.1
• Package: @github/copilot@1.0.31
• Shell: zsh

Behavior

Running copilot or copilot --yolo produces no output and exits with code 1.
Running copilot auth status also produces no output.

Root Cause (diagnosed)

The binary wrapper (npm-loader.js) resolves @github/copilot-darwin-arm64 and runs it via spawnSync. The native binary crashes immediately with SIGSEGV (exit code 139). The wrapper catches the null status as ?? 1 and exits silently - no error message is printed.

Verified by running the native binary directly:

$ /path/to/node_modules/@github/copilot-darwin-arm64/copilot --version
[no output, exit: 139]

Steps to Reproduce

1. npm i -g @github/copilot@1.0.31 on macOS arm64 with Node.js v24
2. Run copilot or copilot --yolo
3. No output, exits with code 1

Workaround

Downgrade to 1.0.25 (JS-only, no native binary):

npm i -g @github/copilot@1.0.25

Or run the JS fallback directly:

node $(npm root -g)/@github/copilot/app.js

Suggestion

The wrapper's empty catch {} silently swallows the native binary failure. A fallback to the JS implementation when the native binary crashes (non-zero exit), or at minimum a visible error message, would help users diagnose this.