As for "everything is a file", IIUC Plan9 explored this area extensively, and the community of fans is still alive, so I believe good insights from real world e

As for "everything is a file", IIUC Plan9 explored this area extensively, and the community of fans is still alive, so I believe good insights from real world experience could be gathered at this early design stage by talking with Plan9 people and maybe revieving their manuals. Especially asking them for feedback.