ghostwriter

ghostwriter is GUI markdown editor with spell check support.

ghostwriter is not in standard repository, but could be installed using FlatPak.

Install ghostwriter from flatpak ☆☆☆

This the not recommended method.

flatpak install flathub io.github.wereturtle.ghostwriter

This issue using flatpak installation is when you want to run ghostwriter from CLI.

Complete command:

/usr/bin/flatpak run --branch=stable --arch=x86_64 --command=ghostwriter --file-forwarding io.github.wereturtle.ghostwriter @@ README.md @@

Minimum CLI command:

flatpak run io.github.wereturtle.ghostwriter README.md

This the recommended method.

If you prefer to use apt, then you need to add a new PPA.

sudo add-apt-repository ppa:wereturtle/ppa &&
sudo apt-get update &&
sudo apt install ghostwriter -y