Add NixOS config

home-manager/modules/helix.nix

@@ -0,0 +1,106 @@
+{ config, pkgs, ...}: {
+  programs.helix.enable = true;
+  programs.helix.settings = {
+    # theme = "everforest_dark";
+    theme = "gruvbox";
+
+    editor = {
+      mouse = true;
+      auto-save = true;
+      line-number = "relative";
+      rulers = [ 100 ];
+      cursorline = true;
+      cursorcolumn = true;
+      bufferline = "always";
+
+      cursor-shape = {
+        insert = "bar";
+        normal = "block";
+        select = "underline";
+      };
+      
+      soft-wrap = {
+        enable = true;
+        wrap-indicator = "↩ ";
+      };
+      
+      whitespace = {
+        render = {
+          space = "all";
+          tab = "all";
+          newline = "none"; 
+        };
+        characters = {
+          space = " ";
+          nbsp = "⍽";
+          tab = "→";
+          tabpad = "·";
+          newline = "⏎";
+        };
+      };
+
+      statusline = {
+        left = [ "mode" "spinner" "diagnostics" ];
+        center = [ "file-name" "separator" "version-control" "separator"];
+        separator = "│";
+        mode.normal = "NORMAL";
+        mode.insert = "INSERT";
+        mode.select = "SELECT";
+      };
+
+      lsp.display-inlay-hints = false;
+
+      indent-guides = {
+        render = true;
+        character = "╎";
+        skip-levels = 1;
+      };
+
+      file-picker.hidden = false;
+    };
+
+    keys = {
+      normal = {
+        l = "insert_mode";
+        esc = ["collapse_selection" "keep_primary_selection"];
+        n = "move_char_left";
+        o = "move_char_right";
+        e = "move_line_down";
+        i = "move_line_up";
+        q = "goto_line_end";
+        h = "goto_line_start";
+        j = "search_next";
+        J = "search_prev";
+        f = "open_below";
+        F = "open_above";
+        "C-o" = ":buffer-close-others";
+        "C-x" = ":buffer-close";
+        p = "paste_before";
+        y = "yank_main_selection_to_clipboard";
+
+        up = "no_op";
+        down = "no_op";
+        left = "no_op";
+        right = "no_op";
+      };
+
+      select = {
+        n = "extend_char_left";
+        o = "extend_char_right";
+        e = "extend_line_down";
+        i = "extend_line_up";
+        q = "goto_line_end";
+        h = "goto_line_start";
+
+        up = "no_op";
+        down = "no_op";
+        left = "no_op";
+        right = "no_op";
+      };
+
+      insert = {
+        "S-ret" = "open_below";
+      };
+    };
+  };
+}