For a lot of use cases I find .http files very convenient. Here is a documentation from Microsoft: https://learn.microsoft.com/en-us/aspnet/core/test/http-files?view=aspnetcore-8.0

There is some standard around the .http extension so they work in many IDEs and they can be implemented into CI pipelines. The Microsoft documentation should be enough, though, to get you started.

Using that for monorails and regular cargo trains would require the monorails to follow regulations and I don’t see that happening.

Which database are you querying? I only knew of Overpass QL. Is this a database of the OSM data?

StrongBox is just a client that uses keepass databases. I think it integrates well when using Apple devices and you can still use your databases on other platforms.