diff --git a/config/core.nix b/config/core.nix
index f5ac55d..189f31f 100644
--- a/config/core.nix
+++ b/config/core.nix
@@ -3,7 +3,36 @@
     # Color scheme.
     colorschemes.catppuccin = {
       enable = true;
-      settings.flavour = "mocha";
+      settings = {
+        flavour = "mocha";
+        no_bold = false;
+        no_italic = false;
+        no_underline = false;
+        integrations = {
+          cmp = true;
+          neotree = true;
+          harpoon = true;
+          gitsigns = true;
+          which_key = true;
+          illuminate.enabled = true;
+          treesitter = true;
+          treesitter_context = true;
+          telescope.enabled = true;
+          indent_blankline.enabled = true;
+          native_lsp = {
+            enabled = true;
+            inlay_hints = {
+              background = true;
+            };
+            underlines = {
+              errors = ["underline"];
+              hints = ["underline"];
+              information = ["underline"];
+              warnings = ["underline"];
+            };
+          };
+        };
+      };
     };
 
     # Options.
diff --git a/config/default.nix b/config/default.nix
index fe510ae..0cb0312 100644
--- a/config/default.nix
+++ b/config/default.nix
@@ -6,17 +6,20 @@
     ./core.nix
     ./direnv.nix
     ./gitsigns.nix
+    ./harpoon.nix
+    ./illuminate.nix
     ./indent-blankline.nix
     ./keybindings.nix
     ./lazygit.nix
     ./lsp
     ./lualine.nix
+    ./neo-tree.nix
+    ./nvim-cmp.nix
     ./project.nix
     ./rainbow-delimiters.nix
     ./telescope.nix
     ./toggleterm.nix
     ./treesitter.nix
-    ./neo-tree.nix
     ./which-key.nix
   ];
 }
diff --git a/config/harpoon.nix b/config/harpoon.nix
new file mode 100644
index 0000000..5b42eb6
--- /dev/null
+++ b/config/harpoon.nix
@@ -0,0 +1,5 @@
+{
+  plugins.harpoon = {
+    enable = true;
+  };
+}
diff --git a/config/illuminate.nix b/config/illuminate.nix
new file mode 100644
index 0000000..9c09276
--- /dev/null
+++ b/config/illuminate.nix
@@ -0,0 +1,15 @@
+{ ... }:
+
+{
+  plugins.illuminate = {
+    enable = true;
+    underCursor = false;
+    filetypesDenylist = [
+      "Outline"
+      "TelescopePrompt"
+      "alpha"
+      "harpoon"
+      "reason"
+    ];
+  };
+}
diff --git a/config/lsp/default.nix b/config/lsp/default.nix
index ec811e3..f401b06 100644
--- a/config/lsp/default.nix
+++ b/config/lsp/default.nix
@@ -2,5 +2,6 @@
   imports = [
     ./lsp.nix
     ./lsp-format.nix
+    ./lspkind.nix
   ];
 }
diff --git a/config/lsp/lspkind.nix b/config/lsp/lspkind.nix
new file mode 100644
index 0000000..69e8f78
--- /dev/null
+++ b/config/lsp/lspkind.nix
@@ -0,0 +1,12 @@
+{
+  plugins.lspkind = {
+    enable = true;
+    symbolMap = {
+      Copilot = "";
+    };
+    extraOptions = {
+      maxwidth = 50;
+      ellipsis_char = "...";
+    };
+  };
+}
diff --git a/config/nvim-cmp.nix b/config/nvim-cmp.nix
new file mode 100644
index 0000000..3f6fc5a
--- /dev/null
+++ b/config/nvim-cmp.nix
@@ -0,0 +1,39 @@
+{
+  plugins = {
+    cmp = {
+      enable = true;
+      autoEnableSources = false;
+      settings = {
+        sources = [
+          { name = "nvim_lsp"; }
+          {
+            name = "buffer"; # text within current buffer
+            option.get_bufnrs.__raw = "vim.api.nvim_list_bufs";
+            keywordLength = 3;
+          }
+          {
+            name = "path"; # file system paths
+            keywordLength = 3;
+          }
+          {
+            name = "luasnip"; # snippets
+            keywordLength = 3;
+          }
+        ];
+      mapping = {
+        "<Tab>" = "cmp.mapping(cmp.mapping.select_next_item(), {'i', 's'})";
+        "<C-j>" = "cmp.mapping.select_next_item()";
+        "<C-k>" = "cmp.mapping.select_prev_item()";
+        "<C-e>" = "cmp.mapping.abort()";
+        "<C-b>" = "cmp.mapping.scroll_docs(-4)";
+        "<C-f>" = "cmp.mapping.scroll_docs(4)";
+        "<C-Space>" = "cmp.mapping.complete()";
+        "<CR>" = "cmp.mapping.confirm({ select = true })";
+        "<S-CR>" = "cmp.mapping.confirm({ behavior = cmp.ConfirmBehavior.Replace, select = true })";
+      };};
+    };
+    cmp-nvim-lsp.enable = true;
+    cmp-path.enable = true;
+    cmp-buffer.enable = true;
+  };
+}