Hi,
Sounds indeed like staying on the conda version is right and distribution should be solvable.
I have not used conda-pack before but did now and I get a .tar.gz which I can expand and run orekit on. (same machine however). I am using linux and python 3.12.
I think there are successfull packagings with pyinstaller if that could be a path, haven’t used it myself.
Otherwise, have you checked conda environments, if you can have all packages as conda / pip packages?
I have used your initial approach with creating docker containers for mamba (like conda), I think i used this as base.
https://micromamba-docker.readthedocs.io/en/latest/