Easily enter any kind of special text, from accent to Emoji.
Download this repository, or any individual file, then include it in your ~/.XCompose configuration:
include "%L"
include "%H/dist/xcompose/Typography"
Created by Ilya Birman for macOS and Windows, now ported to Linux. Please refer to author's project page for more information. To activate the layout, hit the right Alt key twice, followed by some other key — you can find a full list on Ilya's website.
For example, a sequence of Alt, Alt, w will give you a ✓ mark. See the complete cheat sheet:
Bug me over email shall you find something is off.