How to implement a fully portable PhpStorm?

Question

phpstorm

You need to create a fully portable version of PhpStorm on a flash drive.
At the moment, I managed to transfer the config files to one folder by editing the \PhpStorm\bin\idea.properties file.
idea.config.path=${idea.home}/config
idea.system.path=${idea.home}/system
However, the problem remains that when connecting to the server, PhpStorm still creates a .ssh folder on working drive C:\Users\...\.ssh , which, if I'm not mistaken, stores access to this connection.
Unfortunately, it was not possible to figure it out, and to make sure that PhpStorm, except for a flash drive, does not leave traces of its work anywhere else.