I Open-Sourced a 67-file GitHub Enterprise Playbook — Why and How I Built It

I published an open-source GitHub Enterprise learning guide (67 files) based on real-world onboarding / enablement work.

I’d love feedback from the community:

• Please leave questions or suggestions as GitHub Discussions / Issues
• PRs are also welcome

Qiita (JP): https://qiita.com/hagix/items/a64ed1b6fc39454e1bb7
GitHub repo: https://github.com/NRI-Oxalis/Beginner_manual
GItHub Page: https://nri-oxalis.github.io/Beginner_manual/

The content is currently Japanese-first.
I'm planning to expand English coverage,
and community contributions are very welcome.