Is the source code of the PR Insights GitHub App actually available?

https://github.com/apps/pr-insights https://prinsights.searchcode.com/ I saw this app being used here and I assume it is also mostly powered by scc, but clicking on "source" from the second link links back to this repo, and searching "PR Insights", "X/size", "github app" or "issues.opened" yields no result related to this app.