How to install retroarch perfectly in devterm A06

At present, I can’t download the core normally based on the manjaro system and the armbian system

Is there a complete beginner’s tutorial?

I still can’t download the core after setting it up according to the following tutorial

Step 1:

Sudo pacman -S retroarch

Step 2:
Open and close retroarch arch once, to ensure it creates the local directories!!!

Step three 3:

Edit the local configuration file at ~/.config/retroarch/retroarch.cfg

and make sure the following 5 lines are set to these settings

assets_directory = “~/.config/retroarch/assets”
menu_show_core_updater = “true”
core_updater_show_experimental_cores = “true”
libretro_directory = “~/.config/retroarch/cores/”
libretro_info_path = “~/.config/retroarch/cores/info”

Save and restart retroarch