Develop Webapplications for SAP S4 HANA without UI5 Framework [closed]

I’m looking for a smooth way to develop simple webapplications for SAP HANA without using UI5 Framework.

I know the common way to develop Fiori Apps is using either the Business Application Studio or Visual studio. Both require the SAPUI5 Framework, both consume OData Services and both are most likely based on CDS Views.

I want to avoid this “common” way because it requires a deeper knowledge of above mentioned technologies, which i currently don’t have.

My solution so far is using an external webserver, communicating via SOAP webservices and just point to that webserver when clicking the Tile in the Fiori Launchpad.

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Is there an alternative to SAPUI5 for Fiori App Development, that does not require an external webserver?