diff --git a/.github/workflows/build-release.yml b/.github/workflows/build-release.yml
index c5dea81..b0a1a1c 100644
--- a/.github/workflows/build-release.yml
+++ b/.github/workflows/build-release.yml
@@ -36,9 +36,10 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Setup Python
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: '3.10'
+          cache: 'pip'
 
       - name: Build with pyInstaller
         run: |
diff --git a/installers/install_spyglass.zsh b/installers/install_spyglass.zsh
new file mode 100644
index 0000000..8501bea
--- /dev/null
+++ b/installers/install_spyglass.zsh
@@ -0,0 +1,33 @@
+#!/bin/zsh
+
+echo "Installing Spyglass..."
+# Get the latest version of Spyglass
+git clone https://github.com/Derpseh/Spyglass.git
+cd Spyglass
+
+# Check out the latest tag (the latest release)
+# NOTE: Hardcoding this to v3.0.1 for now because releases after that
+# are not considered stable. Leaving in my tag search code for now though.
+# git checkout $(git describe --tags $(git rev-list --tags --max-count=1)) # Uncomment this line to get the latest release
+git checkout 3.0.1
+
+py3=$(python3 --version)
+# Check if python 3 is 3.9 or higher
+if [[ $py3 == *"3.9"* || $py3 == *"3.10"* || $py3 == *"3.11"* ]]; then
+    echo "Python 3.9 or higher detected."
+else
+    echo "Python 3.9 or higher not detected. Please install Python 3.9 or higher."
+    exit 1
+fi
+
+# Check to see if the user wants a virtual environment
+read -q "REPLY?Do you want to create a virtual environment? (y/n) "
+echo
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+    echo "Creating virtual environment..."
+    python3 -m venv venv
+    source venv/bin/activate
+fi
+
+# Install requirements
+pip install -r requirements.txt
diff --git a/spyglass.py b/spyglass.py
index f129ecd..20d60f7 100644
--- a/spyglass.py
+++ b/spyglass.py
@@ -334,7 +334,7 @@ def sanitize(string: str) -> Optional[str]:
 
 for region in regions:
     CumuNatList.append(CumuNatList[-1] + region["num_nations"])
-    region.update({"cumu_nations": CumuNatList[-1] + region["num_nations"]})
+    region.update({"cumu_nations": CumuNatList[-1]})
 logger.info("Cumulative nation list created!")
 logger.info(f"Total number of nations: {CumuNatList[-1]}")