Emacs is actually why this is attractive to me. The latex input mode makes it easy to input a large set of Unicode that I care about, but my font not supporting

Emacs is actually why this is attractive to me. The latex input mode makes it easy to input a large set of Unicode that I care about, but my font not supporting them means that the fallback is used, which throws everything out of alignment, frequently messing up the line-height as well.