Okay, check out my tinysh - tiny limited onscreen shell (initially for the K3):
https://www.mobileread.com/forums/sho...d.php?t=173657
The really bad eips text support makes it rather useless, but it is enough to prove that this concept works (and will be useful with better text output using bitmap fonts with "dd").
Also, it would not be difficult to translate to another language and still keep it small and simple. We can add ANSI escape sequence support and such later too.