Final Tweaks

•  In System Settings app:
• Uncheck Suspend Session in Power Management, Energy Savings (I've had back luck with corrupted suspends that cause boot failure)
  
•  Turn on numlock in Input Devices, Keyboard
•  Turn on night color in Display and Monitor, Night Color

• In right-click Display Settings, set up random slide show with preferred wallpapers

• sudo su and then EDITOR=micro visudo  to get rid of update password timeout
  

  Defaults passwd_timeout=0 

• sudo micro  /boot/loader/loader.conf  to set longer time for boot menu
• Set up Printer.  HP is easy using HPlip.  

Set up Printer:

• For Brother Laser printer: download linux deb package from Brother
• yay -S dpkg
sudo dpkg -i --force-architecture hll2480dwpdrv-4.1.0-1.i386.deb
Then set up in KDE add printer; manually point to ppd file at /usr/share/ppd/brother/XXXXX.ppd

socket://192.168.4.174
• and https://support.cc.gatech.edu/support-tools/howto/direct-ip-printing-unix 
• yay -S brother-hll2370dw
• Set up in KDE System Settings, Printer
• Select AppSocket/HP JetDirect, input ip address of printer, and manually add ppd file from /opt/brother/Printers/HLL2370DW/cupswrapper/brother-HLL2370DW-cups-en.ppd
  

crontab:

yay -S cronie

sudo systemctl enable cronie.service && sudo systemctl start cronie.service

paccache cleaner:

yay -S pacman-contrib

sudo systemctl enable paccache.timer && sudo systemctl start paccache.timer

In cachyos-hello:  check Ananicy Cpp enabled, Bpftune enabled and Sysemd-oomd enabled

# For zen kernel 

sudo pacman -S linux-zen linux-zen-headers

copy linux.conf entry in /boot/loader/entries to linux-zen.conf and edit accordingly

sudo mkinitcpio -P

# For firewall (laptop)

yay -S firewalld ipset ebtables
sudo systemctl enable --now firewalld

sudo firewall-cmd --add-service libvirt --zone=libvirt --permanent

for config: firewall-config