diff --git a/Instal.yml b/Instal.yml
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+# Download and install nvm:
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash
+
+# in lieu of restarting the shell
+\. "$HOME/.nvm/nvm.sh"
+
+# Download and install Node.js:
+nvm install 25
+
+# Verify the Node.js version:
+node -v # Should print "v25.2.1".
+
+# Install Corepack:
+npm install -g corepack
+
+# Download and install Yarn:
+corepack enable yarn
+
+# Verify Yarn version:
+yarn -v