diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 6cbaed3..67c9a0c 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -25,6 +25,10 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          submodules: false
+      - name: Checkout excalidraw
+        run: git submodule update --init excalidraw
       - name: Install Nix
         uses: DeterminateSystems/nix-installer-action@main
       - name: Setup Nix Cache
diff --git a/.gitmodules b/.gitmodules
index d1e2071..a8dd3b8 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "MAS/Projeto (site)"]
 	path = MAS/Projeto (site)
 	url = https://github.com/JCapucho/mas-projeto-final.git
+[submodule "excalidraw"]
+	path = excalidraw
+	url = https://github.com/excalidraw/excalidraw.git
diff --git a/bun.lockb b/bun.lockb
index e7c46fb..0013a8d 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/excalidraw b/excalidraw
new file mode 160000
index 0000000..b7d7ccc
--- /dev/null
+++ b/excalidraw
@@ -0,0 +1 @@
+Subproject commit b7d7ccc929696cc17b4cc34452e4afd846d59f4f
diff --git a/excalidraw.patch b/excalidraw.patch
new file mode 100644
index 0000000..e644059
--- /dev/null
+++ b/excalidraw.patch
@@ -0,0 +1,37 @@
+diff --git a/src/packages/excalidraw/main.js b/src/packages/excalidraw/main.js
+index 853bb70f..45883611 100644
+--- a/src/packages/excalidraw/main.js
++++ b/src/packages/excalidraw/main.js
+@@ -1,11 +1 @@
+-if (process.env.IS_PREACT === "true") {
+-  if (process.env.NODE_ENV === "production") {
+-    module.exports = require("./dist/excalidraw-with-preact.production.min.js");
+-  } else {
+-    module.exports = require("./dist/excalidraw-with-preact.development.js");
+-  }
+-} else if (process.env.NODE_ENV === "production") {
+-  module.exports = require("./dist/excalidraw.production.min.js");
+-} else {
+-  module.exports = require("./dist/excalidraw.development.js");
+-}
++module.exports = require("./dist/excalidraw.production.min.js");
+diff --git a/src/packages/excalidraw/webpack.prod.config.js b/src/packages/excalidraw/webpack.prod.config.js
+index 0a2d7faa..01eaf8be 100644
+--- a/src/packages/excalidraw/webpack.prod.config.js
++++ b/src/packages/excalidraw/webpack.prod.config.js
+@@ -96,13 +96,11 @@ module.exports = {
+         test: /\.js($|\?)/i,
+       }),
+     ],
++    runtimeChunk: false,
+     splitChunks: {
+       chunks: "async",
+       cacheGroups: {
+-        vendors: {
+-          test: /[\\/]node_modules[\\/]/,
+-          name: "vendor",
+-        },
++        default: false,
+       },
+     },
+   },
diff --git a/flake.nix b/flake.nix
index 2185a1b..cbce3ac 100644
--- a/flake.nix
+++ b/flake.nix
@@ -58,6 +58,7 @@
 
       base-pkgs = with pkgs; [
         bun
+        yarn
         nodejs_latest
         pandoc
         pandoc-norg-rs.packages.${system}.default
diff --git a/package.json b/package.json
index 6ebe23f..2afe51c 100644
--- a/package.json
+++ b/package.json
@@ -3,13 +3,14 @@
   "scripts": {
     "dev": "parcel index.eta",
     "build": "parcel build index.eta",
-    "index": "pagefind --site dist"
+    "index": "pagefind --site dist",
+    "postinstall": "bun ./scripts/build-excalidraw.js"
   },
   "staticFiles": {
     "staticPath": "public"
   },
   "devDependencies": {
-    "@excalidraw/excalidraw": "^0.17.2",
+    "@excalidraw/excalidraw": "file:./excalidraw/src/packages/excalidraw",
     "@parcel/config-default": "^2.10.0",
     "@parcel/core": "^2.10.0",
     "@parcel/plugin": "^2.10.0",
@@ -27,6 +28,7 @@
     "posthtml": "^0.16.6",
     "posthtml-parser": "^0.11.0",
     "posthtml-toc": "posthtml/posthtml-toc#0c19ee4de97c5985fda86550d0590e29074191d4",
+    "rewire": "^7.0.0",
     "tailwindcss": "^3.3.3"
   },
   "dependencies": {
diff --git a/scripts/build-excalidraw.js b/scripts/build-excalidraw.js
new file mode 100644
index 0000000..2fce356
--- /dev/null
+++ b/scripts/build-excalidraw.js
@@ -0,0 +1,68 @@
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import { spawnSync } from "node:child_process";
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+export const project_root = path.join(__dirname, "..");
+
+const excalidrawDir = path.join(project_root, "excalidraw");
+const excalidrawPkgDir = path.join(excalidrawDir, "src/packages/excalidraw");
+
+const gitRevCheck = spawnSync(
+  "git",
+  [
+    "apply",
+    "--reverse",
+    "--check",
+    path.join(project_root, "excalidraw.patch"),
+  ],
+  {
+    cwd: excalidrawDir,
+  },
+);
+
+if (gitRevCheck.status != 0) {
+  spawnSync("git", ["apply", path.join(project_root, "excalidraw.patch")], {
+    cwd: excalidrawDir,
+    stdio: "inherit",
+  });
+} else {
+  console.error("Excalidraw patch already applied");
+}
+
+let res = spawnSync("yarn", ["--frozen-lockfile"], {
+  stdio: "inherit",
+  cwd: excalidrawDir,
+});
+
+if (res.error) throw res.error;
+
+res = spawnSync("yarn", ["--frozen-lockfile"], {
+  stdio: "inherit",
+  cwd: excalidrawPkgDir,
+});
+
+if (res.error) throw res.error;
+
+res = spawnSync("rm", ["-rf", "dist"], {
+  stdio: "inherit",
+  cwd: excalidrawPkgDir,
+});
+
+if (res.error) throw res.error;
+
+res = spawnSync("yarn", ["webpack", "--config", "webpack.prod.config.js"], {
+  stdio: "inherit",
+  cwd: excalidrawPkgDir,
+  env: {
+    NODE_ENV: "production",
+  },
+});
+
+if (res.error) throw res.error;
+
+res = spawnSync("bun", ["install", "--ignore-scripts", "--frozen-lockfile"], {
+  stdio: "inherit",
+});
+
+if (res.error) throw res.error;