What is the file format for the Linux download on github? I downloaded it but the file has no extension.
There is no extension. You should be able to download it, then just type the name in the terminal to execute it. Try this:
./soloterm_linux
You may need to download a new binary. I re-released it with binaries for x86 and arm processors. I only had arm binaries out there, so you may need the x86 version.
