Old Installation Instructions?
There is https://calyxos.org/installation2 titled "New Installation Instructions" by cdesai on Mon, 08/26/2019 - 17:11
and there is https://calyxos.org/installation by admin on Tue, 04/16/2019 - 17:15 <- This one seems older.
The probably old instructions are linked by that page: https://calyxos.org/get