alt Hacker NewsHave a look at Objective-Smalltalk[1][2], with polymorphic identifiers[3] (all identifiers are URIs), storage combinators[4] (virtual filesystems on steroids), and polymorphic write streams[5] (streams everywhere).
Objective-Smalltalk basically provides the sorts of things you write about locally at the language level. You could also move specific instances behind an operating system boundary.
[2] https://dl.acm.org/doi/10.1145/3689492.3690052
[3] https://dl.acm.org/doi/10.1145/2508168.2508169
[4] https://2019.splashcon.org/details/splash-2019-Onward-papers...
Could you explain the connection you see a bit more?
Part of the appeal of the Plan 9 approach was that you could use any program in your distributed environment, written in any language, because the abstraction layer was the file system – the lingua Franca of IO.