- Fix typo: mgail.com → gmail.com in flake.nix maintainer metadata
- Add -u (undefined vars) and -o pipefail to coverage.sh, consistent
with version-sync.sh and tag-release.sh
Replace removed `darwin.apple_sdk.frameworks.Security` with `apple-sdk`,
following the nixpkgs Darwin SDK migration (NixOS/nixpkgs#354146).
Co-authored-by: joshgodsiff <josh.godsiff@gmail.com>