Chayah Labs is an independent software lab focused on practical tools, compatibility improvements, technical research and maintaining useful software for modern environments.

The goal is simple: understand how software works, improve compatibility where possible, document the changes clearly, and always preserve credit to the original developers and projects that made the work possible.

A compatibility-focused update of PS4PKGViewer, originally created by LMAN .

Highlights

• Improved support for newer and rebuilt PS4 PKG files
• LibOrbisPkg / PkgTool compatibility fallback
• Automatic legacy PFS crypto fallback for affected FPKGs
• Fix for inode 0 is corrupt / empty List Contents cases
• Correct SYSTEM_VER display for PS4 firmware 10.00 and newer
• ORBISPatches integration replacing the discontinued Octolus service
• Sony update metadata support
• Copy Links and Save Updates functionality

Repository:
https://github.com/ChayahLabs/PS4PKGViewer-ChayahLabs

Latest release:
https://github.com/ChayahLabs/PS4PKGViewer-ChayahLabs/releases/tag/v1.6.4

• Windows utilities and tooling
• PlayStation-related compatibility research
• Software maintenance and modernization
• Reverse-engineering-oriented experiments
• Clear technical documentation and reproducible fixes

• Credit original authors and contributors
• Keep compatibility changes documented
• Prefer reproducible fixes over opaque workarounds
• Preserve original project identity where appropriate
• Use GitHub Issues for bugs, regressions and improvement ideas

For project-specific bugs or feature requests, please use the Issues section of the relevant repository.