Bring CachyOS Cosmic DE along with kernel 6.18.2 to Arch Linux Bare Metal Instance

 Following below is procedure which allows to install on Arch Linux CachyOS v3 repositories along with pacman fork belongs to CachyOS. Re-sync of v3 repos and core && extra works pretty stable ( u; sudo pacman -Syyu ) - the same commands as described in post after first reboot Arch Instance into CachyOS kernel. I also have to confirm that Re-sync might be randomly required. The hack step below is scp cachyos-rate-mirrors script from remote native CachyOS Instance to the target one.

$ sudo pacman-key --init

$ sudo pacman-key --populate

$ sudo pacman-key --recv-keys F3B607488DB35A47 --keyserver keyserver.ubuntu.com

$ sudo pacman-key --lsign-key F3B607488DB35A47

$ curl https://mirror.cachyos.org/cachyos-repo.tar.xz -o cachyos-repo.tar.xz

$ tar xvf cachyos-repo.tar.xz && cd cachyos-repo

The step in particular installs pacman's fork belongs to CachyOS

$ sudo ./cachyos-repo.sh

Scp binary cachyos-rate-mirrors  from native CachyOS box to target one

$ vim .bashrc

Add at bottom of .bashrc function u() 

 u() {

   sudo cachyos-rate-mirrors && yay --noconfirm

   # Clear pacman cache completely (drops all cached packages,except last 3)

   sudo paccache -rk3 <<< y

   # Remove orphaned packages without prompt

   sudo pacman -Rns $(pacman -Qtdq) --noconfirm || true

}

$ source ~/.bashrc

$ u

Right after successful u() completion install Cachyos kernel and reboot Arch Linux Instance into CachyOS kernel

$ sudo pacman -S linux-cachyos linux-cachyos-headers

$ sudo grub-mkconfig -o /boot/grub/grub.cfg

$ sudo reboot

On Arch Bare metal instance rebooted into Cachyos kernel

$ u

Attempt to run `sudo pacman -Syyu` is supposed to perform final repositories synchronization. 

At this point you may also perform a complete upgrade system to CachyOS

$ sudo pacman -S ananicy-cpp

$ sudo pacman -S cachyos-kernel-manager

$ pacman -Qqn | sudo pacman -S -

$ sudo reboot