Linux on access technology

[Glenn]

Hi,
I am wondering if anyone is working on a light-weight version of Linux to work on some of the legacy technology.
I am thinking of devices such as a Braille Light 40 and the like.
I don't know how much RAM these devices typically used, or if they can be upgraded, the last time I had one open for some battery work, it seemed that all the components are soldered down.
I imagine that it would take a .BIN file to prompt it to load Linux.
My thoughts are that it could give a bit more usefulness to these old devices.
I think otherwise, it's just a clunky Braille display.
Thanks for thoughts.
Glenn