Could someone compare that requirements.txt list to https://krydos1.heliohost.org/cgi-bin/modules27.py and post a list of modules that aren't already installed?
Follow these instructions on your home pc https://www.c-sharpcorner.com/article/three-steps-to-install-angular-and-create-first-hello-world-angular-app/ and then follow this guide https://wiki.helionet.org/Node.js to get it running on Tommy.
Softaculous offers the versions that the authors of Softaculous program into it. If you want something upgraded in Softaculous you need to talk to them https://www.softaculous.com/board/index.php?fid=2&fname=Suggestions
The other option is to not use Softaculous and just install it from source.
That's because Johnny no longer has python 3.6. The thread that you necro'd was from 3 years ago. Johnny has python 3.7 now which is located at /usr/bin/python3.7
According to what he said on discord he didn't like the .xyz domain anyways, so he bought a .site instead, and instead of using Tommy he's already paid for and is using a VPS.