This will run a remote script on PhotoShop on the Mac

local_mac_script_for_running_remote.jsx

// See https://forums.adobe.com/message/10632458#10632458
if (app.name !== 'Adobe Photoshop') {
    alert('Crash,for Adobe Photoshop only!');
}

var remoteCode = 'https://gist.githubusercontent.com/Trevor-/6a02d8cb49bbfeb9822f061dea300bc1/raw';

// this function is nicked from // https: //forums.adobe.com/thread/2364797
function getSystemCommandStdout(command) {
    var stdout = "";
    var tempFile = new File(Folder.temp + "/temp.txt");
    app.system(command + " > " + tempFile.fsName);
    if (tempFile.open("r")) {
        stdout = tempFile.read();
        tempFile.close();
        tempFile.remove();
    }
    return stdout;
}

var result = getSystemCommandStdout("curl 'remoteCode'".replace("remoteCode", remoteCode));
// Set script args dosn't work on PS so just using setenv
$.setenv("envVar1", "Hello");
// Set environmental vars
$.setenv("envVar2", "World");
// Run the "remote" script
eval(result);
// Share functions and vars
blah(testVar, 'bar');