Reducing things to basically the interface you laid out is the point of 9p [1], and is what Plan 9’s UNIX-but-distributed design was built on top of. Same inventor as Go! If you haven’t dived down the Plan 9 rabbit hole yet, it’s a beautiful and haunting vision of how simple cloud computing could have been.

[1] https://9fans.github.io/plan9port/man/man9/intro.html