i've thought about this from different directions.
i'd love a laptop that i could upgrade. something like the https://www.crowpi.cc/ where every 3-4 years i could replace the old pi and get a newer better one. the current versions are really only made for 1 specific version of pi. and wouldn't fit any clone boards.
or perhaps a vt100 terminal connecting to a rasp pi as a terminal. text only for distraction free work. could even get a z80 cp/m based computer for real old school vibes.
i did look into getting a bbc model b and adding a rasp pi as a second processor. http://www.breakintoprogram.co.uk/hardware/adding-a-pitube-c...
I want to hear the fan, the drive head actuate, a monitor thst goes gazong when I power up