While in principle the Phix source code should be cross-platform, there is currently no Linux version of Hypatia.
Under Linux Hypatia's input line editor does not work, which means that you cannot move the cursor in the input line to edit the text, nor can you scroll through past input lines.
Also, under Linux Hypatia does not know the size of its console window and assumes a width of 80 characters.
To use Hypatia with Linux, you need to install Phix and compile Hypatia, which is quickly done. The current version of Hypatia is written for Phix 1.0.5, it is possible that later versions of Phix may require some adjustments of the code.
Under Linux you need to add two lines to the hy.ini file. Hypatia's editing commands will only work if you specify an editor, and the commands COPY, COPYALL and COPIN only work if you specify a copy-to-clipboard command:
EXTEDITOR editor
CCCOMMAND copy text file to clipboard
Under Windows, defaults are notepad.exe and clip <, but under Linux no such defaults exist. These commands will probably work, if you have gedit and xclip installed:
EXTEDITOR gedit
CCCOMMAND xclip -sel c <
I have not tested Hypatia under Linux, some features may not work as expected.