-- Toggle line numbers (when hiding, hide relative numbers too)
vim.keymap.set('n', '<leader>on', '<cmd>set nu! nornu<cr>', { desc = 'Line numbers (toggle)' })
-- Toggle relative line numbers (show/hide absolute numbers at same time)
vim.keymap.set('n', '<leader>or', '<cmd>set rnu! nu!<cr>', { desc = 'Relative line numbers (toggle)' })
vim - Command for toggling line numbers in vi - Stack Overflow