Yes, stackapps is different from any other StackExchange site in a variety of ways:
Most "Questions" are meant to be announcement / product pages for scripts, apps, and libraries.
To this end, note:
Stack Apps has special tags: app, script, and library to facilitate posting tools that use the API and/or enhance Stack Exchange sites.
These posts look like ...
See the documentation for the /questions path and the question object spec. To get answers, merely use the /questions path with a filter that has answers enabled.
To get the latest 30 questions, sort by activity, descending, and request only the first page with a page-size of 30.