chatgpt: init at 26.803.81509

[whazor]

Summary

Package the official ChatGPT/Codex desktop application for x86_64 and ARM64 Linux from OpenAI's Debian releases.

The package keeps the bundled Electron/Owl runtime because the application depends on OpenAI-specific Owl APIs that are unavailable in nixpkgs Electron.

Closes #7846.

Packaging details

• Provides Electron's GTK, NSS, audio, graphics, Wayland, PipeWire, and X11 dependencies.
• Adds dynamically loaded graphics and display libraries through targeted runtime RPATHs.
• Adds Qt 5 and Qt 6 RPATHs to the optional bundled shim libraries.
• Avoids a broad LD_LIBRARY_PATH leaking into Electron subprocesses.
• Ignores unused musl and Android prebuild dependencies plus optional Qt dependencies during ELF patching.
• Applies a byte-length-preserving app.asar patch that prevents detect-libc from calling process.report.getReport().

The ASAR workaround prevents an intentional SIGILL/CFI trap in node::GetNodeReport when @parcel/watcher initializes the Git repository watcher. Existing ELF, filesystem, and ldd libc-detection fallbacks remain available.

A custom updater tracks both architecture-specific Debian downloads using their ETags, extracts the package versions from Debian control metadata, and refreshes their fixed-output hashes.

Testing

Automated checks:

• nix build --accept-flake-config path:.#chatgpt
• chatgpt --version reports Codex 151.0.7922.76
• ./packages/chatgpt/update.py
• Targeted nix fmt
• nix flake check --accept-flake-config --no-build path:.
• Native aarch64-linux package build on Nixbot.
• Verified the ARM64 Debian metadata, ELF architecture, payload layout, and ASAR patch target.

Manual testing on x86_64 NixOS:

• Chat works.
• Coding workflows work.
• The integrated browser works.
• Voice mode works.
• The pet and voice overlays intermittently flash under niri. It is currently unclear whether this is niri-specific or an upstream issue in the early Linux release.

Follow-up

• Evaluate the appropriate packaging approach for Darwin/macOS.