Change visudo editor
sudo update-alternatives --config editorsudo update-alternatives --install <link> <name> <path> <priority>sudo update-alternatives --install /usr/bin/editor editor /usr/bin/nvim 0sudo update-alternatives --config editorsudo update-alternatives --install <link> <name> <path> <priority>sudo update-alternatives --install /usr/bin/editor editor /usr/bin/nvim 0