install_neovim.sh

#!/bin/bash

# rhel-only stuff
function rhel_setup () {
  # we install EPEL and CRB
  sudo dnf install -y epel-release
  sudo dnf config-manager --set-enabled crb
  
  # we install the packages needed to build the latest nvim version (for ubuntu)
  sudo dnf -y install ninja-build cmake gcc make unzip gettext curl
  
  # continue with instructions common to both distros
  global_install
}

# debian only stuff
function debian_setup () {
  # we install the packages needed to build the latest nvim version (for ubuntu)
  sudo apt update
  sudo apt install -y ninja-build gettext cmake unzip curl git

  # continue with instructions common to both distros
  global_install
}

# actual installayion
function global_install () {
  # we clone the nvim repo
  git clone https://github.com/neovim/neovim.git

  # we move to the repo, and select the stable branch
  cd ./neovim
  git checkout stable
  
  # build and install the editor
  make CMAKE_BUILD_TYPE=Release
  sudo make install

  # once done, we remove the repository
  cd ..
  rm -rf ./neovim

  # clone the nvchad configuration
  git clone https://github.com/NvChad/NvChad ~/.config/nvim --depth 1
}

# install on rhel-like distros
if [ -f /etc/redhat-release ]; then
  rhel_setup
# install on debian-like distros
elif [ -f /etc/lsb-release ]; then
  debian_setup
else
  echo "your distro doesn't seem to be supported yet"
fi

Install script (needs sudo, curl and bash preinstalled):

curl --proto '=https' --tlsv1.2 -sSfL https://gist.githubusercontent.com/ferdinandkeller/14f54c2ff3d8837c6801bb1cbf340d00/raw | bash