Help with the 240p Composite Video PAL setup before I mess it up.

I just don't want to mess this up. It's probably quite trivial for many of you. Can any of you please help me out?

The guide can be found here: https://www.lakka.tv/articles/2024/05/02/rpi-composite/

In cmdline.txt change

video=Composite-1:720x480@60e vc4.tv_norm=NTSC-J

to

video=Composite-1:720x576@50e

My file:

cmdline.txt

boot=UUID=1505-5205 disk=UUID=3856b008-7412-4aa3-ba9a-f693abcfb072 quiet video=Composite-1:720x480@60e vc4.tv_norm=NTSC-J

# NTSC:
# video=Composite-1:720x480@60e vc4.tv_norm=NTSC-J
#
# PAL:
# video=Composite-1:720x576@50e

In retroarch-overrides.txt add / uncomment following lines:

video_autoswitch_refresh_rate = "3"

video_refresh_rate = "50.08"

My file:

retroarch overrides.txt

# Add overrides for RetroArch default configuration in

# following form:

#

# key_name = "value"

# other_key = 42

#

# These will be then added to / replace existing ones in

# default retroarch.cfg

#

# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

# !!! Overrides / settings from this file are used !!!

# !!! only during the very first boot after flashing !!!

# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

#

# Overrides for RPiX-Composite build:

#

# PAL Users: uncomment following line(s):

#video_autoswitch_refresh_rate = "3"

#video_refresh_rate = "50.08"