Add Nexus Shell recipes

[viewer12]

Summary

• add a download recipe for the latest Apple silicon Nexus Shell release
• verify the app with strict Developer ID signature requirements, including Team ID 5MBFAB57U2
• add a Munki recipe with the supported architecture and minimum macOS version

I am the upstream developer of Nexus Shell. The recipes use the public GitHub Releases repository and do not require a custom processor.

Verification

• plutil -lint NexusShell/NexusShell.download.recipe NexusShell/NexusShell.munki.recipe
• uvx pre-commit run --files NexusShell/NexusShell.download.recipe NexusShell/NexusShell.munki.recipe
• AutoPkg 2.9.0 real download run selected v1.6.9, downloaded the DMG, mounted it, and passed deep + strict CodeSignatureVerifier validation

AI disclosure

Codex assisted with adapting an existing tested upstream recipe to this repository's namespace and formatting. I reviewed the complete diff and ran the checks above before requesting review.

[viewer12]

The failing pre-commit.ci status is repository-wide: every reported error is from a pre-existing recipe (for example Handbrake, Dropbox, VLC, and Cyberduck), and none references either new Nexus Shell file.

uvx pre-commit run --files NexusShell/NexusShell.download.recipe NexusShell/NexusShell.munki.recipe passes all applicable hooks locally. I also reproduced the remote result with --all-files, which reports the same pre-existing baseline only.

[homebysix]

Thanks for the contribution! This core autopkg/recipes repo contains a few popular apps and serves as a sort of implementation reference for how AutoPkg recipes look, but I would hesitate to add recipes to it that aren't yet well-established and broadly needed by the community. Better to allow the recipes to be maintained by a specific owner in their own repo in the autopkg org.

That said, I would volunteer to own these recipes in my repo at autopkg/homebysix-recipes. If you submit them there, I'll test and merge them. Thanks!