nvim: init: Make cursor line always be in the middle of the window

nvim/.config/nvim/init.lua

@@ -43,6 +43,7 @@ vim.o.writebackup    = false
 vim.o.sessionoptions = 'buffers,curdir,tabpages,winsize'
 vim.o.shada          = ''
 vim.o.diffopt        = 'filler,internal,algorithm:histogram,indent-heuristic'
+vim.o.scrolloff      = 999
 vim.bo.swapfile      = false
 vim.bo.formatoptions = "crqn1j"