nvim2023/after/plugin/zenmode.lua

local zenmode = require('zen-mode');

zenmode.setup {
  -- your configuration comes here
  -- or leave it empty to use the default settings
  -- refer to the configuration section below
}

vim.keymap.set("n", "<leader>z", function()
  zenmode.toggle({
    window = {
      width = 90
    },
  })
end)