You should be able to run the .pck file or the source code using the Linux version of Godot 3.3.4 without any problem.
But I wouldn't recommend it since the resolution of this app is stuck at 1280*480, which is not suitable for any other monitor than the one on DevTerm, it's more of a proof-of-concept thing than a practical app.
Anyway here is the Linux test build:
https://drive.google.com/file/d/1qbzmeP2ksO3QOa6Qofxgi9W1adM1u71K/view?usp=shari...