That is normal. I’ve reviewed the code. Although I’m not 100% sure, I think you may have been trapped by a bug. Can you build (inside the container) using the latest development version downloaded using git? The vital patch is 7a9f2b0a016362b54848c3447dee6a51c486946c. Surely this commit does some type cleanup.
Just follow the build instructions for Debian inside the container and you should be fine 
Once you know how to build you can also build for debugging
This resolves my issue now! Thanks a lot!
Kind regards,
Wolfram.
I also pushed 5267969f24c0e141a1a02fd54e1d26dd16f1895b as the result of Claude Code analysing the flow for the functions pushing numbers to the stack that may fail due to resource errors (global stack) or lack of big number support. This cleans a lot of typing, simplifies the code and saves over 200 lines All tests pass. Please test.
still works fine after your additional cleanup. Regards, Wolfram.