this gives instructions on how to install Eigen (the community version) on the Mac etc.
its not native apple silicon, and cannot be for a number of reasons Ive discussed before on this forum, so a search will give you the background.
tl;dr; there is python dependancy which means its not just a matter of recompiling - significant development would be required.
the above also gives you a link to the source code , but unless your up for an extreme challenge, Id not recommend trying to build it.
there are also a couple of community ‘alternatives’ to EigenD, which are lighterweight e.g. ECMapper / Meta Morph / Mac which you can find links to.
I developed a lightweight interface to the eigenharps called EigenLite which you can use if you are a developer.
a quick search on this forum will provide links /information for all the above.