Like, if you flip a bicycle, you can't do that naively by just flipping the image, as the chainrings should be on the right side of the bike. (Lots of leftward facing bike emojis mistakenly shows the big cog on the wrong side now, though..)
I noticed that the flipped person with cane emoji became left handed. Will we get dominant hand modifiers and more permutations?
https://curlicuecal.tumblr.com/post/175362924100/an-entomolo... https://wh0.github.io/2020/01/02/scissors.html
To answer your question: Yes. I thought ruby handled it automatically, but it turns out that, no, you need to actually do fiddly stuff with some of the emojis like this one:
https://emojipedia.org/man-raising-hand-light-skin-tone/
In general though, emojis are more complicated than people give them credit for. There was one domain I had that you could only type on Android and not iOS! The exact encoding for one of the emoji slightly differed. I can't remember all the details, but emoji is annoying and best to be avoided if you can.
does Ruby also do this with other combining characters like accent marks? If you use a combining accent character in a string in Ruby and reverse the string does the accent mark hop from one character to another?