I think a lot of people have tried to "low code" this problem. The issue is that everyone has their preferred tech stack and low-code typically only has one choice. Using a DSL for logic (conditionals in yaml strings), or a bespoke language (like DarkLang or WaspLang), is a difficult sell. Developers want to use their language of choice with real programming constructs.
The most interesting approach, the sort of holy grail if you will, is to write your code as a single application, and then the system figures out how to distribute it if/when needed. ServiceWeaver is this concept in Go
Reddit "critiquing" ServiceWeaver: https://www.reddit.com/r/programming/comments/1962avu/a_goog...