sudo apt-get install libtool autoconf automake cmake libncurses5-dev g++

make cmake
make test

$ sudo add-apt-repository ppa:neovim-ppa/unstable

$ sudo apt-get update
$ sudo apt-get install neovim

sudo add-apt-repository ppa:neovim-ppa/unstable
sudo apt-get update
sudo apt-get install neovim

sudo apt-get install python-dev python-pip python3-dev python3-pip

curl -LO https://github.com/neovim/neovim/releases/download/nightly/nvim.appimage
chmod u+x nvim.appimage
./nvim.appimage