I discovered this method last year when I was in Asia, possibly when I was already in Cambodia. At that time I found multiple threads of various forums discussing it but I’ll answer now off the top of my head and try to come back and add some links afterward.
References. Hopefully I can find some more/better/more recent ones to add…
Credit:stackoverflow.com‘
4 Mar, 2024
4 Mar, 2024
5 Mar, 2024