Hirose and Koyama have Mr.Yuzuhara give a lecture with the GUI project.The contents of the lecture are shown below. '''Purpose of this lecture''' To facilitate research, we will install the equivalent of KAGRA's simulation system (Debian10, Virtual Box) on our PC. '''Download Debian10''' ・Download ''debian-10.4.0-amd64-xfce-CD-1.iso'' from *[[https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/]]. '''Install ''Virtual Box''''' ・Select [''Virtual Box 6.1.12 platform packages''] from *[[https://www.virtualbox.org/wiki/Downloads]].  Then [''Virtual Box-6.1.12-139181-Win.exe''] will be downloaded. ・Install Virtual Box from [''Virtual Box-6.1.12-139181-Win.exe'']. '''How to start Oracle ''VM Virtual Box''''' ・Open [''Virtual Box-6.1.12-139181-Win.exe''], create a virtual machine, install Debian 10. As for the concrete method, We referred to *[[http://digital-life.seesaa.net/article/467770144.html]].