There is support for giac as an external app, the port is named KhiCAS. Flash a firmware with external app support (Omega typically) and then use https://zardam

There is support for giac as an external app, the port is named KhiCAS. Flash a firmware with external app support (Omega typically) and then use https://zardam.github.io/nw-external-apps/ https://zardam.github.io/nw-external-apps/ to transfer apps. Right now the current external app system is a glorified proof-of-concept when compared to the TI/Casio ecosystem, but it does work. One cannot distribute epsilon with giac integrated since their licenses are incompatible (GPL3 vs CC-BY-NC-SA), hence the external app workaround. NumWorks could negotiate a commercial license, but there has been no sign of this so far.