Platform engineering is the discipline of designing and building toolchains and workflows that enable self-service capabilities for software engineering organizations in the cloud-native era.

Platform Engineering

Not from experience yet, but i assume doing it private first and following thier guide ? <https://docs.github.com/ja/enterprise-cloud@latest/apps/publishing-apps-to-github-marketplace/using-the-github-marketplace-api-in-your-app/testing-your-app|https://docs.github.com/ja/enterprise-cloud@latest/apps/publishing-apps-to-github-ma[…]using-the-github-marketplace-api-in-your-app/testing-your-app>

Take a look at this, this contains step by Step implementation guidelines on how to place ur app and perform a CI 

<https://docs.github.com/en/apps/creating-github-apps/guides/creating-ci-tests-with-the-checks-api|https://docs.github.com/en/apps/creating-github-apps/guides/creating-ci-tests-with-the-checks-api>