Binary package “elpa-ligature” in ubuntu oracular

display typographical ligatures in major modes

 This package converts graphemes (characters) present in major modes
 of your choice to the stylistic ligatures present in your frame's
 font. It though only works with Debian's emacs-gtk package.
 .
 Additionally, this Debian package automatically enables system-wide
 all known programming ligatures of Fira Code and Jetbrains Mono for
 programming modes and the "www" ligature of Fira Code for all major
 modes.
 .
 Further fonts in Debian known to support programming ligatures are
 listed in the package's optional dependencies. Without at least one
 of them, this package is of little use.