`posix_spawnp failed` on macOS after `npm install -g remobi`

[tborys]

node-pty's spawn-helper prebuild ships without execute permission on macOS (-rw-r--r-- instead of -rwxr-xr-x). This causes remobi serve to fail immediately with:

Error: posix_spawnp failed.
    at new UnixTerminal (.../node-pty/lib/unixTerminal.js:92:24)

Reproduction

1. npm install -g remobi@latest (v1.0.1, Node v22, macOS arm64)
2. remobi serve
3. Crashes with posix_spawnp failed

Workaround

chmod +x $(npm root -g)/remobi/node_modules/node-pty/prebuilds/darwin-arm64/spawn-helper

Root cause

Upstream node-pty bug (microsoft/node-pty#850). npm does not preserve executable bits from tarballs. The fix was merged upstream but only released in 1.2.0 betas. remobi depends on ^1.1.0 (stable).

Suggested fix

Add a postinstall script to chmod the spawn-helper as a workaround until node-pty 1.2.0 stable lands.

[github-actions]

🎉 This issue has been resolved in version 1.0.2 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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