diff --git a/ct/paperless-ai.sh b/ct/paperless-ai.sh
index e61aecd4f..1b67e9563 100644
--- a/ct/paperless-ai.sh
+++ b/ct/paperless-ai.sh
@@ -32,36 +32,52 @@ function update_script() {
 
   if check_for_gh_release "paperless-ai" "clusterzx/paperless-ai"; then
     msg_info "Stopping Service"
-    systemctl stop paperless-ai paperless-rag
+    systemctl stop paperless-ai
+    if [[ -f /etc/systemd/system/paperless-rag.service ]]; then
+      systemctl stop paperless-rag
+    fi
     msg_ok "Stopped Service"
 
-    msg_info "Backing up data"
-    cp -r /opt/paperless-ai/data /opt/paperless-ai-data-backup
-    msg_ok "Backed up data"
-
-    fetch_and_deploy_gh_release "paperless-ai" "clusterzx/paperless-ai" "tarball"
-
-    msg_info "Restoring data"
-    cp -r /opt/paperless-ai-data-backup/* /opt/paperless-ai/data/
-    rm -rf /opt/paperless-ai-data-backup
-    msg_ok "Restored data"
+    NODE_VERSION="22" setup_nodejs
+    CLEAN_INSTALL=1 CLEAN_INSTALL_KEEP="data" fetch_and_deploy_gh_release "paperless-ai" "clusterzx/paperless-ai" "tarball"
 
     msg_info "Updating Paperless-AI"
     cd /opt/paperless-ai
-    if [[ ! -d /opt/paperless-ai/venv ]]; then
-      msg_info "Recreating Python venv"
-      $STD python3 -m venv /opt/paperless-ai/venv
-    fi
-    source /opt/paperless-ai/venv/bin/activate
-    $STD pip install --upgrade pip
-    $STD pip install --no-cache-dir -r requirements.txt
-    mkdir -p data/chromadb
-    $STD npm ci --only=production
+    export ONNXRUNTIME_NODE_INSTALL=skip PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD=1
+    $STD npm ci --ignore-scripts --no-audit --no-fund
+    $STD npm run build
+    $STD npm prune --omit=dev --ignore-scripts --no-audit --no-fund
     msg_ok "Updated Paperless-AI"
 
+    if ! grep -q "dist/server/index.js" /etc/systemd/system/paperless-ai.service; then
+      msg_info "Migrating services to Paperless-AI 4"
+      if [[ -f /etc/systemd/system/paperless-rag.service ]]; then
+        systemctl disable -q paperless-rag
+        rm -f /etc/systemd/system/paperless-rag.service
+      fi
+      cat <<EOF >/etc/systemd/system/paperless-ai.service
+[Unit]
+Description=PaperlessAI Service
+After=network.target
+
+[Service]
+WorkingDirectory=/opt/paperless-ai
+Environment="NODE_ENV=production"
+Environment="PAPERLESS_AI_PORT=3000"
+Environment="PAPERLESS_AI_DATA_DIR=/opt/paperless-ai/data"
+Environment="HF_HUB_DISABLE_TELEMETRY=1"
+ExecStart=/usr/bin/node dist/server/index.js
+Restart=always
+
+[Install]
+WantedBy=multi-user.target
+EOF
+      systemctl daemon-reload
+      msg_ok "Migrated services to Paperless-AI 4"
+      msg_warn "Settings and history from 3.x are migrated on first start. If this instance was reachable from the internet, read 'Upgrading from 3.x' in the upstream README first."
+    fi
+
     msg_info "Starting Service"
-    systemctl start paperless-rag
-    sleep 3
     systemctl start paperless-ai
     msg_ok "Started Service"
     msg_ok "Updated successfully!"
@@ -73,7 +89,7 @@ start
 build_container
 description
 
-msg_ok "Completed successfully!\n"
+msg_ok "Completed Successfully!\n"
 echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
-echo -e "${INFO}${YW}Access it using the following URL:${CL}"
-echo -e "${GATEWAY}${BGN}http://${IP}:3000${CL}"
+echo -e "${INFO}${YW} Access it using the following URL:${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}http://${IP}:3000${CL}"
diff --git a/install/paperless-ai-install.sh b/install/paperless-ai-install.sh
index f536d50bc..a14bd3532 100644
--- a/install/paperless-ai-install.sh
+++ b/install/paperless-ai-install.sh
@@ -13,100 +13,36 @@ setting_up_container
 network_check
 update_os
 
-msg_info "Installing Dependencies"
-$STD apt install -y \
-  build-essential
-msg_ok "Installed Dependencies"
-
-msg_info "Installing Python3"
-$STD apt install -y \
-  python3-pip \
-  python3-dev \
-  python3-venv
-mkdir -p ~/.config/pip
-cat >~/.config/pip/pip.conf <<EOF
-[global]
-break-system-packages = true
-EOF
-msg_ok "Installed Python3"
-
 NODE_VERSION="22" setup_nodejs
 fetch_and_deploy_gh_release "paperless-ai" "clusterzx/paperless-ai" "tarball"
 
 msg_info "Setup Paperless-AI"
 cd /opt/paperless-ai
-$STD python3 -m venv /opt/paperless-ai/venv
-source /opt/paperless-ai/venv/bin/activate
-# TMPDIR to use container disk instead of tmpfs for large pip downloads (https://github.com/community-scripts/ProxmoxVE/issues/10338)
-export TMPDIR=/opt/paperless-ai/tmp
-mkdir -p "$TMPDIR"
-$STD pip install --upgrade pip
-$STD pip install --no-cache-dir -r requirements.txt
-rm -rf "$TMPDIR"
-mkdir -p data/chromadb
-$STD npm ci --only=production
+export ONNXRUNTIME_NODE_INSTALL=skip PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD=1
+$STD npm ci --ignore-scripts --no-audit --no-fund
+$STD npm run build
+$STD npm prune --omit=dev --ignore-scripts --no-audit --no-fund
 mkdir -p /opt/paperless-ai/data
-cat <<EOF >/opt/paperless-ai/data/.env
-PAPERLESS_API_URL=
-PAPERLESS_API_TOKEN=
-PAPERLESS_USERNAME=
-AI_PROVIDER=openai
-OPENAI_API_KEY=
-OPENAI_MODEL=gpt-4o-mini
-OLLAMA_API_URL=
-OLLAMA_MODEL=
-SCAN_INTERVAL=*/10 * * * *
-SYSTEM_PROMPT=""
-PROCESS_PREDEFINED_DOCUMENTS=no
-TAGS=
-ADD_AI_PROCESSED_TAG=no
-AI_PROCESSED_TAG_NAME=ki-gen
-USE_PROMPT_TAGS=no
-PROMPT_TAGS=
-USE_EXISTING_DATA=no
-API_KEY=
-CUSTOM_API_KEY=
-CUSTOM_BASE_URL=
-CUSTOM_MODEL=
-RAG_SERVICE_URL=http://localhost:8000
-RAG_SERVICE_ENABLED=true
-EOF
 msg_ok "Setup Paperless-AI"
 
 msg_info "Creating Service"
 cat <<EOF >/etc/systemd/system/paperless-ai.service
 [Unit]
 Description=PaperlessAI Service
-After=network.target paperless-rag.service
-Requires=paperless-rag.service
-
-[Service]
-WorkingDirectory=/opt/paperless-ai
-Environment="NODE_ENV=production"
-EnvironmentFile=/opt/paperless-ai/data/.env
-ExecStart=/usr/bin/node server.js
-Restart=always
-
-[Install]
-WantedBy=multi-user.target
-EOF
-
-cat <<EOF >/etc/systemd/system/paperless-rag.service
-[Unit]
-Description=PaperlessAI-RAG Service
 After=network.target
 
 [Service]
 WorkingDirectory=/opt/paperless-ai
-EnvironmentFile=/opt/paperless-ai/data/.env
-ExecStart=/opt/paperless-ai/venv/bin/python3 main.py --host 0.0.0.0 --port 8000 --initialize
+Environment="NODE_ENV=production"
+Environment="PAPERLESS_AI_PORT=3000"
+Environment="PAPERLESS_AI_DATA_DIR=/opt/paperless-ai/data"
+Environment="HF_HUB_DISABLE_TELEMETRY=1"
+ExecStart=/usr/bin/node dist/server/index.js
 Restart=always
 
 [Install]
 WantedBy=multi-user.target
 EOF
-systemctl enable -q --now paperless-rag
-sleep 5
 systemctl enable -q --now paperless-ai
 msg_ok "Created Service"