Installing Material skin manually

Hi,

Been searching the answer in the forum for a few days, apologies if is there, couldn't find a solution.

I'm trying to install Material skin on the LMS. The HW is an old ARM platform running old Debian port, not supported for a few years now, but still functions well for running the LMS. When enabling the skin in the plugins, nothing happens, checking the log files shows that an https request to fetch the skin times out. The address used there is correct. I tried to install it manually, extracting the ZIP file and placing it in the InstalledPlugins, this fails on Perl unable to find the skin module in the @INC path.

I was wondering if there is a solution to the above issues, or a way to install the skin manually.

Thanks,
Amit