diff --git a/.gitignore b/.gitignore
index a547bf3..baba7a6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,5 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
+
+*.tsbuildinfo
\ No newline at end of file
diff --git a/README.md b/README.md
index 74872fd..7b48f60 100644
--- a/README.md
+++ b/README.md
@@ -1,50 +1,3 @@
-# React + TypeScript + Vite
+# cubeviz
 
-This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
-
-Currently, two official plugins are available:
-
-- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh
-- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
-
-## Expanding the ESLint configuration
-
-If you are developing a production application, we recommend updating the configuration to enable type aware lint rules:
-
-- Configure the top-level `parserOptions` property like this:
-
-```js
-export default tseslint.config({
-  languageOptions: {
-    // other options...
-    parserOptions: {
-      project: ['./tsconfig.node.json', './tsconfig.app.json'],
-      tsconfigRootDir: import.meta.dirname,
-    },
-  },
-})
-```
-
-- Replace `tseslint.configs.recommended` to `tseslint.configs.recommendedTypeChecked` or `tseslint.configs.strictTypeChecked`
-- Optionally add `...tseslint.configs.stylisticTypeChecked`
-- Install [eslint-plugin-react](https://github.com/jsx-eslint/eslint-plugin-react) and update the config:
-
-```js
-// eslint.config.js
-import react from 'eslint-plugin-react'
-
-export default tseslint.config({
-  // Set the react version
-  settings: { react: { version: '18.3' } },
-  plugins: {
-    // Add the react plugin
-    react,
-  },
-  rules: {
-    // other rules...
-    // Enable its recommended rules
-    ...react.configs.recommended.rules,
-    ...react.configs['jsx-runtime'].rules,
-  },
-})
-```
+Cubical type theory visualizer.
\ No newline at end of file
diff --git a/bun.lockb b/bun.lockb
index 5d46ce1..ea578d9 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/package.json b/package.json
index 88a626c..919e5d2 100644
--- a/package.json
+++ b/package.json
@@ -13,6 +13,7 @@
     "@react-three/drei": "^9.114.0",
     "@react-three/fiber": "^8.17.8",
     "@types/three": "^0.169.0",
+    "jotai": "^2.10.0",
     "meshline": "^3.3.1",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
diff --git a/src/App.css b/src/App.css
deleted file mode 100644
index b9d355d..0000000
--- a/src/App.css
+++ /dev/null
@@ -1,42 +0,0 @@
-#root {
-  max-width: 1280px;
-  margin: 0 auto;
-  padding: 2rem;
-  text-align: center;
-}
-
-.logo {
-  height: 6em;
-  padding: 1.5em;
-  will-change: filter;
-  transition: filter 300ms;
-}
-.logo:hover {
-  filter: drop-shadow(0 0 2em #646cffaa);
-}
-.logo.react:hover {
-  filter: drop-shadow(0 0 2em #61dafbaa);
-}
-
-@keyframes logo-spin {
-  from {
-    transform: rotate(0deg);
-  }
-  to {
-    transform: rotate(360deg);
-  }
-}
-
-@media (prefers-reduced-motion: no-preference) {
-  a:nth-of-type(2) .logo {
-    animation: logo-spin infinite 20s linear;
-  }
-}
-
-.card {
-  padding: 2em;
-}
-
-.read-the-docs {
-  color: #888;
-}
diff --git a/src/App.tsx b/src/App.tsx
index 497920e..1ee5347 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,63 +1,15 @@
-import { ReactNode, useCallback, useRef, useState } from "react";
-import { Canvas, extend, useFrame } from "@react-three/fiber";
-import { OrbitControls, OrthographicCamera } from "@react-three/drei";
-import { BoxGeometry, EdgesGeometry, LineBasicMaterial } from "three";
-import { InlineMath, BlockMath } from "react-katex";
-import { createPortal } from "react-dom";
+import { Canvas } from "@react-three/fiber";
+import { OrbitControls } from "@react-three/drei";
 
-import "./App.css";
 import styles from "./styles.module.scss";
 import "katex/dist/katex.min.css";
 import Point from "./components/Point";
 import Path from "./components/Path";
+import { SettingsBox } from "./SettingsContext";
 
 // https://threejs.org/manual/#en/align-html-elements-to-3d
 
-function createBox({ dimensions, ...props }) {
-  // This reference gives us direct access to the THREE.Mesh object
-  const ref = useRef();
-  // Hold state for hovered and clicked events
-  const [hovered, hover] = useState(false);
-  const [clicked, click] = useState(false);
-
-  const box = new BoxGeometry(1, 1, 1);
-  const edges = new EdgesGeometry(box);
-
-  const label = (
-    <div>
-      helloge {JSON.stringify(clicked)}
-      <InlineMath math="f(x)" />
-    </div>
-  );
-
-  // Return the view, these are regular Threejs elements expressed in JSX
-  const view = (
-    <mesh
-      {...props}
-      ref={ref}
-      onClick={(event) => click(!clicked)}
-      onPointerOver={(event) => hover(true)}
-      onPointerOut={(event) => hover(false)}
-    >
-      {/* <boxGeometry args={[1, 1, 1]} /> */}
-      {/* <edgesGeometry args={[box]} /> */}
-      <lineSegments
-        args={[edges, new LineBasicMaterial({ color: "darkgray" })]}
-      />
-      <meshStandardMaterial color={hovered ? "hotpink" : "orange"} />
-    </mesh>
-  );
-
-  return [view, label];
-}
-
 function App() {
-  const [labelContainerEl, setLabelContainerEl] =
-    useState<HTMLDivElement | null>(null);
-  const labelContainerRef = useCallback((el) => {
-    if (el) setLabelContainerEl(el);
-  }, []);
-
   let coords: [number, number, number][] = [
     [0, 0, 0],
     [0, 0, 1],
@@ -84,7 +36,8 @@ function App() {
     );
 
   return (
-    <>
+    <div className={styles.container}>
+      <SettingsBox />
       <Canvas className={styles.canvas}>
         <OrbitControls />
         <ambientLight intensity={Math.PI / 2} />
@@ -105,7 +58,16 @@ function App() {
           <Path key={JSON.stringify([start, end])} start={start} end={end} />
         ))}
       </Canvas>
-    </>
+      <div className={styles.footer}>
+        <a
+          href="https://git.sr.ht/~mzhang/cubeviz"
+          target="_blank"
+          rel="noreferrer noopener"
+        >
+          Source
+        </a>
+      </div>
+    </div>
   );
 }
 
diff --git a/src/SettingsContext.tsx b/src/SettingsContext.tsx
new file mode 100644
index 0000000..630f8db
--- /dev/null
+++ b/src/SettingsContext.tsx
@@ -0,0 +1,20 @@
+import { atom, useAtom } from "jotai";
+import styles from "./styles.module.scss";
+
+export const showEmptyAtom = atom(true);
+
+export function SettingsBox() {
+  const [showEmpty, setShowEmpty] = useAtom(showEmptyAtom);
+
+  return (
+    <div className={styles.header}>
+      <input
+        type="checkbox"
+        id="showEmptyCheckbox"
+        checked={showEmpty}
+        onChange={() => setShowEmpty((v) => !v)}
+      />
+      <label htmlFor="showEmptyCheckbox">Show empty?</label>
+    </div>
+  );
+}
diff --git a/src/components/EditBox.tsx b/src/components/EditBox.tsx
index ea5a7ff..9d35d4d 100644
--- a/src/components/EditBox.tsx
+++ b/src/components/EditBox.tsx
@@ -1,20 +1,23 @@
-import { useCallback, useState } from "react";
-import { InlineMath } from "react-katex";
+import { type FormEvent, useCallback, useState } from "react";
+import { BlockMath } from "react-katex";
 
 import styles from "./EditBox.module.scss";
+import { showEmptyAtom } from "../SettingsContext";
+import { useAtomValue } from "jotai";
 
-export interface EditBoxProps {}
+// export interface EditBoxProps {}
 
-export default function EditBox({}: EditBoxProps) {
+export default function EditBox() {
   const [value, setValue] = useState("");
   const [isEditing, setIsEditing] = useState(false);
+  const showEmpty = useAtomValue(showEmptyAtom);
 
   const handleDblClick = useCallback(() => {
     if (!isEditing) setIsEditing(true);
   }, [isEditing]);
 
   const done = useCallback(
-    (evt) => {
+    (evt: FormEvent) => {
       evt.preventDefault();
       if (isEditing) setIsEditing(false);
     },
@@ -26,15 +29,18 @@ export default function EditBox({}: EditBoxProps) {
       {isEditing ? (
         <form onSubmit={done}>
           <input
+            // biome-ignore lint/a11y/noAutofocus: <explanation>
             autoFocus={true}
+            onBlur={done}
             value={value}
             onChange={(evt) => setValue(evt.target.value)}
+            placeholder="Type latex code..."
           />
         </form>
       ) : value === "" ? (
-        <span className={styles.empty}>(empty)</span>
+        <span className={styles.empty}>{showEmpty ? <>(empty)</> : ""}</span>
       ) : (
-        <InlineMath math={value} />
+        <BlockMath math={value} />
       )}
     </div>
   );
diff --git a/src/components/Path.tsx b/src/components/Path.tsx
index 4af3a4c..1ccbb2a 100644
--- a/src/components/Path.tsx
+++ b/src/components/Path.tsx
@@ -1,6 +1,6 @@
-import { extend, useFrame } from "@react-three/fiber";
+import { extend } from "@react-three/fiber";
 import { Html, Line } from "@react-three/drei";
-import { MeshLineGeometry, MeshLineMaterial, raycast } from "meshline";
+import { MeshLineGeometry, MeshLineMaterial } from "meshline";
 import EditBox from "./EditBox";
 
 extend({ MeshLineGeometry, MeshLineMaterial });
diff --git a/src/styles.module.scss b/src/styles.module.scss
index 75d6a64..60505d7 100644
--- a/src/styles.module.scss
+++ b/src/styles.module.scss
@@ -1,11 +1,28 @@
-.canvas {
+.container {
+    display: grid;
+
     position: relative;
     width: 100%;
     height: 100%;
 }
 
-.labels {
-    position: absolute;
-    left: 0;
-    top: 0;
+.canvas {
+    grid-area: 1 / 1;
+    position: relative;
+    width: 100%;
+    height: 100%;
+}
+
+.header {
+    grid-area: 1 / 1;
+    place-self: start center;
+    z-index: 50;
+    padding: 10px;
+}
+
+.footer {
+    grid-area: 1 / 1;
+    place-self: end end;
+    z-index: 50;
+    padding: 10px;
 }
\ No newline at end of file
diff --git a/vite.config.ts b/vite.config.ts
index 5a33944..14a49d6 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -1,7 +1,8 @@
-import { defineConfig } from 'vite'
-import react from '@vitejs/plugin-react'
+import { defineConfig } from "vite";
+import react from "@vitejs/plugin-react";
 
 // https://vitejs.dev/config/
 export default defineConfig({
+  base: "/cubeviz",
   plugins: [react()],
-})
+});