neovim: add base profile without mkDefault as a temporary solution

neovim/dev.nix

@@ -25,6 +25,79 @@ in
     "${modulesPath}/profiles/recommended.nix"
   ];
 
+  vim.opt = {
+    # Better Unix support
+    viewoptions = [ "folds" "options" "cursor" "unix" "slash" ];
+    encoding = "utf-8";
+
+    # Enable 24-bit color
+    termguicolors = true;
+
+    # Other options
+    backspace = [ "indent" "eol" "start" ];
+    laststatus = 2;
+    showmode = false;
+
+    # Tabs as spaces
+    expandtab = true;
+    tabstop = 2;
+    softtabstop = 2;
+    shiftwidth = 2;
+
+    # Fixes broken cursor on Linux
+    guicursor = "";
+
+    # Disable mouse / touchpad
+    mouse = "";
+
+    # Incremental substitutin
+    inccommand = "split";
+
+    # Hide files when leaving them.
+    hidden = true;
+    # Show line numbers.
+    number = true;
+    # Minimum line number column width.
+    numberwidth = 1;
+    # Number of screen lines to use for the commandline.
+    cmdheight = 2;
+    # Lines length limit (0 if no limit).
+    textwidth = 0;
+    # Don't cut lines in the middle of a work.
+    linebreak = true;
+    # Show matching parenthesis.
+    showmatch = true;
+    # Time during which the matching parenthesis is shown.
+    matchtime = 2;
+    # Sensible default line auto cutting and formatting.
+    formatoptions = "jtcrq";
+    # Copy/Past to/from clipboard.
+    clipboard = "unnamedplus";
+    # Highlight line cursor is currently on.
+    cursorline = true;
+    # Invisible characters representation when :set list
+    listchars = {
+      tab = "→ ";
+      trail = "~";
+      nbsp = "␣";
+      eol = "¬";
+    };
+
+    # Search
+    # Incremental search.
+    incsearch = true;
+    # Case insensitive.
+    ignorecase = true;
+    # Case insensitive if no uppercase letter in pattern, case sensitive otherwise.
+    smartcase = true;
+
+    # Fold level
+    foldlevel = 99;
+    foldlevelstart = 99;
+    foldminlines = 3;
+    foldnestmax = 5;
+  };
+
   # Enable fast navigation between windows
   vim.keymap.set = map (k: { mode = "n"; lhs = ctrl k; rhs = "${ctrl "w"}${k}"; }) [ "h" "l" "j" "k" ];