8k ... well, looks like totally bloated ... somebody implemented Ian Piumarta's Lysp in Free Pascal, using 192 lines of code only. I haven't tested, but should come out at under 4k, one memory page for the binary.

https://github.com/tangentstorm/lysp Finally, to execute Lisp like code, you only need to implement a lambda calculus, perhaps some alpha, beta reductions, caching on top to gain some speed ... That group implemented a whole operating system in MetaCola language within 20.000 lines of code only. GUI, TrueType Fonts, mouse, keyboard driver ... everything included, called "Frank" for Frank - enstein. I've seen that "Frankenstein OS" booting on bare Intel metal and working quite well. Have fun! Am Sonntag, 19. April 2020 schrieb Alexander Burger <a...@software-lab.de>: > On Sun, Apr 19, 2020 at 06:10:25PM +0900, George-Phillip Orais wrote: >> You mentioned nokolisp, I also tried that and from what I remember the >> source code was only runnable on an old DOS? > > Then 8kLisp is even better: > > https://software-lab.de/8kLisp.tgz > > It run on CP/M, and the whole interpreter binary 8kl.com has 8192 *bytes*