This sounds like a UNIX where you could write snippets in different languages, have enough wrapper to let those snippets eat stdin and write on stdout, and plumb it all with pipes, organized in a shell script. That was the original dream anyway. Too bad the weak performance of "programs as functions" makes it all barely usable unless you programs are long-running
It kinda sounds like using UNIX pipes but you would also need a context of global variables and running threads / processes. In my vision the blocks would share memory / variables.
That is what the shell script is for: managing the lifetime of said processes, and storing any globals you might need.
The real issu with this approach in my opinion is that a stream of bytes is just too generic, and the necessary (de)serialization is going to eat a lot of CPU for not useful task
