diff --git a/icons.config.ts b/icons.config.ts
index ae35ae17..32681497 100644
--- a/icons.config.ts
+++ b/icons.config.ts
@@ -74,6 +74,21 @@ const config: IconsConfig = {
     "restore_from_trash",
     "history",
     "history_toggle_off",
+    "sentiment_satisfied",
+    "sentiment_dissatisfied",
+    "sentiment_very_satisfied",
+    "sentiment_neutral",
+    "sentiment_very_dissatisfied",
+    "sentiment_excited",
+    "sentiment_frustrated",
+    "sentiment_calm",
+    "sentiment_stressed",
+    "sentiment_extremely_dissatisfied",
+    "sentiment_sad",
+    "sentiment_content",
+    "sentiment_worried",
+    "timer",
+    "target",
   ],
   codePoints: {
     speed: "e9e4",
@@ -87,6 +102,7 @@ const config: IconsConfig = {
     light_mode: "e518",
     upload_file: "e9fc",
     no_sound: "e710",
+    sentiment_extremely_dissatisfied: "f194",
   },
 }
 
diff --git a/package-lock.json b/package-lock.json
index a41dbe02..a886c5a9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,9 +25,6 @@
         "@tauri-apps/api": "^1.4.0",
         "@tauri-apps/cli": "^1.4.0",
         "@theaninova/prettier-config": "^1.0.0",
-        "@tiptap/core": "^2.1.12",
-        "@tiptap/pm": "^2.1.12",
-        "@tiptap/starter-kit": "^2.1.12",
         "@types/dom-view-transitions": "^1.0.1",
         "@types/flexsearch": "^0.7.3",
         "@types/w3c-web-serial": "^1.0.3",
@@ -2869,54 +2866,6 @@
         "url": "https://opencollective.com/popperjs"
       }
     },
-    "node_modules/@remirror/core-constants": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/@remirror/core-constants/-/core-constants-2.0.2.tgz",
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-      "dev": true
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-    "node_modules/@remirror/core-helpers": {
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-      "resolved": "https://registry.npmjs.org/@remirror/core-helpers/-/core-helpers-3.0.0.tgz",
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-      "dev": true,
-      "dependencies": {
-        "@remirror/core-constants": "^2.0.2",
-        "@remirror/types": "^1.0.1",
-        "@types/object.omit": "^3.0.0",
-        "@types/object.pick": "^1.3.2",
-        "@types/throttle-debounce": "^2.1.0",
-        "case-anything": "^2.1.13",
-        "dash-get": "^1.0.2",
-        "deepmerge": "^4.3.1",
-        "fast-deep-equal": "^3.1.3",
-        "make-error": "^1.3.6",
-        "object.omit": "^3.0.0",
-        "object.pick": "^1.3.0",
-        "throttle-debounce": "^3.0.1"
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-      "dev": true,
-      "dependencies": {
-        "type-fest": "^2.19.0"
-      }
-    },
-    "node_modules/@remirror/types/node_modules/type-fest": {
-      "version": "2.19.0",
-      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-2.19.0.tgz",
-      "integrity": "sha512-RAH822pAdBgcNMAfWnCBU3CFZcfZ/i1eZjwFU/dsLKumyuuP3niueg2UAukXYF0E2AAoc82ZSSf9J0WQBinzHA==",
-      "dev": true,
-      "engines": {
-        "node": ">=12.20"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
-      }
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     "node_modules/@rollup/pluginutils": {
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       "resolved": "https://registry.npmjs.org/@rollup/pluginutils/-/pluginutils-5.0.2.tgz",
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-      "resolved": "https://registry.npmjs.org/@tiptap/extension-blockquote/-/extension-blockquote-2.1.12.tgz",
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-        "prosemirror-state": "^1.0.0",
-        "prosemirror-transform": "^1.1.0"
-      }
-    },
     "node_modules/proxy-from-env": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
@@ -9900,12 +9187,6 @@
         "fsevents": "~2.3.2"
       }
     },
-    "node_modules/rope-sequence": {
-      "version": "1.3.4",
-      "resolved": "https://registry.npmjs.org/rope-sequence/-/rope-sequence-1.3.4.tgz",
-      "integrity": "sha512-UT5EDe2cu2E/6O4igUr5PSFs23nvvukicWHx6GnOPlHAiiYbzNuCRQCuiUdHJQcqKalLKlrYJnjY0ySGsXNQXQ==",
-      "dev": true
-    },
     "node_modules/rrweb-cssom": {
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/rrweb-cssom/-/rrweb-cssom-0.6.0.tgz",
@@ -11058,15 +10339,6 @@
         "node": ">=10"
       }
     },
-    "node_modules/throttle-debounce": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/throttle-debounce/-/throttle-debounce-3.0.1.tgz",
-      "integrity": "sha512-dTEWWNu6JmeVXY0ZYoPuH5cRIwc0MeGbJwah9KUNYSJwommQpCzTySTpEe8Gs1J23aeWEuAobe4Ag7EHVt/LOg==",
-      "dev": true,
-      "engines": {
-        "node": ">=10"
-      }
-    },
     "node_modules/throttleit": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/throttleit/-/throttleit-1.0.0.tgz",
@@ -11441,12 +10713,6 @@
         "node": ">=14.17"
       }
     },
-    "node_modules/uc.micro": {
-      "version": "1.0.6",
-      "resolved": "https://registry.npmjs.org/uc.micro/-/uc.micro-1.0.6.tgz",
-      "integrity": "sha512-8Y75pvTYkLJW2hWQHXxoqRgV7qb9B+9vFEtidML+7koHUFapnVJAZ6cKs+Qjz5Aw3aZWHMC6u0wJE3At+nSGwA==",
-      "dev": true
-    },
     "node_modules/ufo": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/ufo/-/ufo-1.3.0.tgz",
diff --git a/src/lib/backup/backup.ts b/src/lib/backup/backup.ts
index 7fe3996c..9b29a446 100644
--- a/src/lib/backup/backup.ts
+++ b/src/lib/backup/backup.ts
@@ -109,7 +109,11 @@ export function restoreFromFile(
 
 export function getChangesFromChordFile(file: CharaChordFile) {
   const changes: Change[] = []
+  const existingChords = new Set(get(chords).map(({phrase, actions}) => JSON.stringify({phrase, actions})))
   for (const [input, output] of file.chords) {
+    if (existingChords.has(JSON.stringify({actions: input, phrase: output}))) {
+      continue
+    }
     changes.push({
       type: ChangeType.Chord,
       actions: input,
diff --git a/src/routes/bootcamp/+page.svelte b/src/routes/bootcamp/+page.svelte
index e69de29b..150a7b4a 100644
--- a/src/routes/bootcamp/+page.svelte
+++ b/src/routes/bootcamp/+page.svelte
@@ -0,0 +1 @@
+<h1>Layout Bootcamp</h1>
diff --git a/src/routes/config/chords/ChordActionEdit.svelte b/src/routes/config/chords/ChordActionEdit.svelte
index 9319d601..40d0b32e 100644
--- a/src/routes/config/chords/ChordActionEdit.svelte
+++ b/src/routes/config/chords/ChordActionEdit.svelte
@@ -13,6 +13,10 @@
   let pressedKeys = new Set<number>()
   let editing = false
 
+  function compare(a: number, b: number) {
+    return a - b
+  }
+
   function edit() {
     pressedKeys = new Set()
     editing = true
@@ -29,16 +33,12 @@
     if (!editing) return
     editing = false
     if (pressedKeys.size < 2) return
-    if (!chord)
-      return dispatch(
-        "submit",
-        [...pressedKeys].sort((a, b) => a - b),
-      )
+    if (!chord) return dispatch("submit", [...pressedKeys].sort(compare))
     changes.update(changes => {
       changes.push({
         type: ChangeType.Chord,
         id: chord!.id,
-        actions: [...pressedKeys].sort((a, b) => a - b),
+        actions: [...pressedKeys].sort(compare),
         phrase: chord!.phrase,
       })
       return changes
@@ -49,6 +49,7 @@
 <button
   class:deleted={chord && chord.phrase.length === 0}
   class:edited={chord && chord.actionsChanged}
+  class:invalid={chord && chord.actions.toSorted(compare).some((it, i) => chord?.actions[i] !== it)}
   on:click={edit}
   on:keydown={keydown}
   on:keyup={keyup}
@@ -58,10 +59,7 @@
   {:else if !editing && !chord}
     <span>{$LL.configure.chords.NEW_CHORD()}</span>
   {/if}
-  <ActionString
-    display="keys"
-    actions={editing ? [...pressedKeys].sort((a, b) => a - b) : chord?.actions ?? []}
-  />
+  <ActionString display="keys" actions={editing ? [...pressedKeys].sort(compare) : chord?.actions ?? []} />
   <sup>•</sup>
 </button>
 
@@ -117,6 +115,10 @@
     }
   }
 
+  .invalid {
+    color: var(--md-sys-color-error);
+  }
+
   .deleted {
     color: var(--md-sys-color-error);
 
diff --git a/src/routes/vocabulary/+page.svelte b/src/routes/vocabulary/+page.svelte
index e69de29b..93ac0815 100644
--- a/src/routes/vocabulary/+page.svelte
+++ b/src/routes/vocabulary/+page.svelte
@@ -0,0 +1,155 @@
+<script lang="ts">
+  import {chords} from "$lib/undo-redo"
+  import Action from "$lib/components/Action.svelte"
+  import {onDestroy, onMount} from "svelte"
+  import {KEYMAP_CODES} from "$lib/serial/keymap-codes"
+  import {fly} from "svelte/transition"
+  import type {Chord} from "$lib/serial/chord"
+
+  const speedRating = [
+    [400, "+100", "excited", true],
+    [700, "+50", "satisfied", true],
+    [1400, "+25", "neutral", true],
+    [3000, "0", "dissatisfied", false],
+    [Infinity, "-50", "sad", false],
+  ] as const
+  const accuracyRating = [
+    [2, "+100", "calm", true],
+    [3, "+50", "content", false],
+    [5, "+25", "stressed", false],
+    [7, "0", "frustrated", false],
+    [14, "-25", "very_dissatisfied", false],
+    [Infinity, "-50", "extremely_dissatisfied", false],
+  ] as const
+
+  let next: Chord[] = []
+  let nextHandle: number
+  let took: number | undefined
+  let delta = 0
+
+  let speed: readonly [number, string, string, boolean] | undefined
+  let accuracy: readonly [number, string, string, boolean] | undefined
+  let progress = 0
+
+  let attempts = 0
+
+  let userInput = ""
+
+  onMount(() => {
+    runTest()
+  })
+
+  function runTest() {
+    if (took === undefined) {
+      took = performance.now()
+      delta = 0
+      attempts = 0
+      userInput = ""
+      if (next.length === 0) {
+        next = Array.from({length: 5}, () => $chords[Math.floor(Math.random() * $chords.length)])
+      } else {
+        next.shift()
+        next.push($chords[Math.floor(Math.random() * $chords.length)])
+        next = next
+      }
+    }
+    if (userInput === next[0].phrase.map(it => (it === 32 ? " " : KEYMAP_CODES[it]!.id)).join("") + " ") {
+      took = undefined
+      speed = speedRating.find(([max]) => delta <= max)
+      accuracy = accuracyRating.find(([max]) => attempts <= max)
+      progress++
+    } else {
+      delta = performance.now() - took
+    }
+
+    nextHandle = requestAnimationFrame(runTest)
+  }
+
+  let debounceTimer = 0
+
+  function backspace(event: KeyboardEvent) {
+    if (event.code === "Backspace") {
+      userInput = userInput.slice(0, -1)
+    }
+  }
+
+  function input(event: KeyboardEvent) {
+    const stamp = performance.now()
+    if (stamp - debounceTimer > 50) {
+      attempts++
+    }
+    debounceTimer = stamp
+    userInput += event.key
+  }
+
+  onDestroy(() => {
+    if (nextHandle) {
+      cancelAnimationFrame(nextHandle)
+    }
+  })
+</script>
+
+<svelte:window on:keydown={backspace} on:keypress={input} />
+
+<h1>Vocabulary Trainer</h1>
+
+{#if next[0]}
+  <div class="row">
+    {#key progress}
+      <div in:fly={{duration: 300, x: -48}} out:fly={{duration: 1000, x: 128}} class="rating">
+        {#if speed}
+          <span class="rating-item">
+            <span style:color="var(--md-sys-color-{speed[3] ? `primary` : `error`})" class="icon">timer</span>
+            {speed[1]}
+            <span class="icon">sentiment_{speed[2]}</span>
+          </span>
+        {/if}
+        {#if accuracy}
+          <span class="rating-item">
+            <span style:color="var(--md-sys-color-{accuracy[3] ? `primary` : `error`})" class="icon"
+              >target</span
+            >
+            {accuracy[1]}
+            <span class="icon">sentiment_{accuracy[2]}</span>
+          </span>
+        {/if}
+      </div>
+    {/key}
+  </div>
+  <div class="hint" style:opacity={delta > 3000 ? 1 : 0}>
+    {#each next[0].actions as action}
+      <Action {action} display="keys" />
+    {/each}
+  </div>
+  <div>
+    {userInput}
+  </div>
+  {#each next as chord, i}
+    <div class="words" style:opacity={1 - i / next.length}>
+      {#each chord.phrase as action}
+        <Action {action} />
+      {/each}
+    </div>
+  {/each}
+{:else}
+  <p>You don't have any chords</p>
+{/if}
+
+<style lang="scss">
+  .row {
+    position: relative;
+    height: 48px;
+  }
+
+  .rating-item {
+    display: flex;
+    gap: 8px;
+    justify-content: flex-start;
+  }
+
+  .rating {
+    position: absolute;
+    left: -48px;
+    width: max-content;
+  }
+</style>