i would totally use this if it had nerdfont support and ligature support.
To share my view on ligatures, there is a danger of making it hard to count letters and I see a lot of designs feeling too creative with the possibility. In my design, I wanted to have ligatures that are more easily countable (not all cases though), and try to find balance between the two camps.
If you’re strict, you make them the same width as the separate characters would be. If you’re less strict, you could, for example, have “⇒” or “½” be one character width, and not 2, respectively 3 (the latter probably would make you give up making a ligature for “1/2”)