Problems installing chess engine, github

General system Newbie
20

First, let me show you this; ‘Descargas’ means Download:

Screenshot_2020-09-02_10-04-55

[keos@keos-pc ~]$ cd Descargas
[keos@keos-pc Descargas]$ ls
Arena-NNUE                 Hermann25-64.tar.gz
Arena-NNUE.7z              arasan-linux-binaries-22.1
Caissabase_2019_09_08      arasan-linux-binaries-22.1.tar.gz
Caissabase_2019_09_08.zip  lc0-0.26.1-1-x86_64.pkg.tar.zst
Hermann25-64               usr
[keos@keos-pc Descargas]$