overhaul of some dotfiles

nvim/lua/options.lua

@@ -1,6 +1,23 @@
 require "nvchad.options"
 
--- add yours here!
+local o = vim.opt
 
--- local o = vim.o
--- o.cursorlineopt ='both' -- to enable cursorline!
+o.relativenumber = true   -- relative line numbers for fast navigation
+o.scrolloff = 8           -- keep 8 lines visible above/below cursor
+o.sidescrolloff = 8
+o.wrap = false            -- no line wrapping
+o.undofile = true         -- persist undo history across sessions
+o.splitbelow = true       -- horizontal splits open below
+o.splitright = true       -- vertical splits open to the right
+o.colorcolumn = "120"     -- column ruler at 120 chars
+o.cursorline = true       -- highlight current line
+
+-- Go uses real tabs; everything else uses 4-space soft tabs
+vim.api.nvim_create_autocmd("FileType", {
+  pattern = "go",
+  callback = function()
+    vim.opt_local.expandtab = false
+    vim.opt_local.tabstop = 4
+    vim.opt_local.shiftwidth = 4
+  end,
+})