diff --git a/.github/workflows/integration_test.yml b/.github/workflows/integration_test.yml
index 955e5d4..7c87ada 100644
--- a/.github/workflows/integration_test.yml
+++ b/.github/workflows/integration_test.yml
@@ -139,10 +139,10 @@ jobs:
         run: |
           ./occ app_api:daemon:register --net host manual_install "Manual Install" manual-install http localhost http://localhost:8080
 
-      - name: Setup python 3.11
+      - name: Setup python 3.13
         uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 #v7.0.0
         with:
-          python-version: '3.11'
+          python-version: '3.13'
 
       - name: Install llm2 app
         working-directory: llm2
diff --git a/Dockerfile b/Dockerfile
index 442d460..a5be072 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,40 +1,59 @@
 # SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
 # SPDX-License-Identifier: AGPL-3.0-or-later
-FROM python:3.11-slim-bookworm
 
-ENV DEBIAN_FRONTEND noninteractive
+# Builder stage: carries the full toolchain (build-essential, git, pipx/poetry,
+# curl) and builds the application virtualenv; none of it reaches the runtime.
+FROM python:3.13-slim-trixie AS builder
+
+ENV DEBIAN_FRONTEND=noninteractive
+ENV POETRY_VIRTUALENVS_IN_PROJECT=1
 
 RUN apt-get update && \
-  apt-get install -y curl && \
-  apt-get -y clean && \
-  apt-get install -y pipx build-essential git vim && \
+  apt-get install -y --no-install-recommends curl pipx build-essential git && \
   rm -rf /var/lib/apt/lists/*
 
-# Download and install FRP client into /usr/local/bin.
+# Download and install FRP client into /usr/local/bin, verifying the
+# tarball against the release's published SHA256 checksums.
+ARG FRP_VERSION=0.71.0
 RUN set -ex; \
-    ARCH=$(uname -m); \
-    if [ "$ARCH" = "aarch64" ]; then \
-      FRP_URL="https://raw.githubusercontent.com/nextcloud/HaRP/main/exapps_dev/frp_0.61.1_linux_arm64.tar.gz"; \
-    else \
-      FRP_URL="https://raw.githubusercontent.com/nextcloud/HaRP/main/exapps_dev/frp_0.61.1_linux_amd64.tar.gz"; \
-    fi; \
-    echo "Downloading FRP client from $FRP_URL"; \
-    curl -L "$FRP_URL" -o /tmp/frp.tar.gz; \
-    tar -C /tmp -xzf /tmp/frp.tar.gz; \
-    mv /tmp/frp_0.61.1_linux_* /tmp/frp; \
-    cp /tmp/frp/frpc /usr/local/bin/frpc; \
+    case "$(uname -m)" in \
+      aarch64) FRP_ARCH="arm64" ;; \
+      *) FRP_ARCH="amd64" ;; \
+    esac; \
+    FRP_TGZ="frp_${FRP_VERSION}_linux_${FRP_ARCH}.tar.gz"; \
+    FRP_BASE="https://github.com/fatedier/frp/releases/download/v${FRP_VERSION}"; \
+    echo "Downloading FRP client from $FRP_BASE/$FRP_TGZ"; \
+    curl -fsSL "$FRP_BASE/$FRP_TGZ" -o "/tmp/$FRP_TGZ"; \
+    curl -fsSL "$FRP_BASE/frp_sha256_checksums.txt" -o /tmp/frp_sha256_checksums.txt; \
+    awk -v f="$FRP_TGZ" '$2 == f' /tmp/frp_sha256_checksums.txt > /tmp/frp.checksum; \
+    test -s /tmp/frp.checksum; \
+    (cd /tmp && sha256sum -c frp.checksum); \
+    tar -C /tmp -xzf "/tmp/$FRP_TGZ"; \
+    cp "/tmp/frp_${FRP_VERSION}_linux_${FRP_ARCH}/frpc" /usr/local/bin/frpc; \
     chmod +x /usr/local/bin/frpc; \
-    rm -rf /tmp/frp /tmp/frp.tar.gz
-
+    rm -rf "/tmp/frp_${FRP_VERSION}_linux_${FRP_ARCH}" "/tmp/$FRP_TGZ" /tmp/frp_sha256_checksums.txt /tmp/frp.checksum
 
 RUN pipx install poetry
+ENV PATH="/root/.local/bin:${PATH}"
+ENV VIRTUAL_ENV=/opt/app/.venv PATH="/opt/app/.venv/bin:${PATH}"
 
-# Install requirements
+# Install requirements into /opt/app/.venv
+WORKDIR /opt/app
+COPY pyproject.toml poetry.lock ./
+RUN poetry install && \
+    (/opt/app/.venv/bin/python -m pip uninstall -y pip setuptools wheel || true)
 
-COPY pyproject.toml .
-COPY poetry.lock .
-ENV PATH="/root/.local/bin:${PATH}"
-RUN poetry install
+# Runtime stage: interpreter + app venv + frpc only — no build toolchain,
+# no vim, no git, no curl, no pipx/poetry.
+FROM python:3.13-slim-trixie
+
+# procps provides pgrep, required by healthcheck.sh.
+RUN apt-get update && \
+  apt-get install -y --no-install-recommends procps && \
+  rm -rf /var/lib/apt/lists/*
+
+COPY --from=builder /usr/local/bin/frpc /usr/local/bin/frpc
+COPY --from=builder /opt/app/.venv /opt/app/.venv
 
 ADD /ex_app/cs[s] /ex_app/css
 ADD /ex_app/im[g] /ex_app/img
@@ -47,5 +66,5 @@ COPY --chmod=775 start.sh /
 
 WORKDIR /ex_app/lib
 ENV PYTHONPATH="/"
-ENTRYPOINT ["/start.sh", "poetry", "run", "python3", "main.py"]
+ENTRYPOINT ["/start.sh", "/opt/app/.venv/bin/python", "main.py"]
 HEALTHCHECK --interval=2s --timeout=2s --retries=300 CMD /healthcheck.sh
diff --git a/poetry.lock b/poetry.lock
index 8cdd861..e263697 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -148,7 +148,6 @@ attrs = ">=17.3.0"
 frozenlist = ">=1.1.1"
 multidict = ">=4.5,<7.0"
 propcache = ">=0.2.0"
-typing_extensions = {version = ">=4.4", markers = "python_version < \"3.13\""}
 yarl = ">=1.17.0,<2.0"
 
 [package.extras]
@@ -168,7 +167,6 @@ files = [
 
 [package.dependencies]
 frozenlist = ">=1.1.0"
-typing-extensions = {version = ">=4.2", markers = "python_version < \"3.13\""}
 
 [[package]]
 name = "annotated-doc"
@@ -208,7 +206,6 @@ files = [
 
 [package.dependencies]
 idna = ">=2.8"
-typing_extensions = {version = ">=4.5", markers = "python_version < \"3.13\""}
 
 [package.extras]
 trio = ["trio (>=0.32.0)"]
@@ -233,19 +230,6 @@ tzdata = {version = "*", markers = "python_version >= \"3.9\""}
 doc = ["doc8", "sphinx (>=7.0.0)", "sphinx-autobuild", "sphinx-autodoc-typehints", "sphinx_rtd_theme (>=1.3.0)"]
 test = ["dateparser (==1.*)", "pre-commit", "pytest", "pytest-cov", "pytest-mock", "pytz (==2025.2)", "simplejson (==3.*)"]
 
-[[package]]
-name = "async-timeout"
-version = "5.0.1"
-description = "Timeout context manager for asyncio programs"
-optional = false
-python-versions = ">=3.8"
-groups = ["main"]
-markers = "python_full_version < \"3.11.3\""
-files = [
-    {file = "async_timeout-5.0.1-py3-none-any.whl", hash = "sha256:39e3809566ff85354557ec2398b55e096c8364bacac9405a7a1fa429e77fe76c"},
-    {file = "async_timeout-5.0.1.tar.gz", hash = "sha256:d9321a7a3d5a6a5e187e824d2fa0793ce379a202935782d555d6e9d2735677d3"},
-]
-
 [[package]]
 name = "attrs"
 version = "26.1.0"
@@ -274,23 +258,6 @@ files = [
 cryptography = "*"
 joserfc = ">=1.6.0"
 
-[[package]]
-name = "backports-tarfile"
-version = "1.2.0"
-description = "Backport of CPython tarfile module"
-optional = false
-python-versions = ">=3.8"
-groups = ["main"]
-markers = "python_version == \"3.11\""
-files = [
-    {file = "backports.tarfile-1.2.0-py3-none-any.whl", hash = "sha256:77e284d754527b01fb1e6fa8a1afe577858ebe4e9dad8919e34c862cb399bc34"},
-    {file = "backports_tarfile-1.2.0.tar.gz", hash = "sha256:d75e02c268746e1b8144c278978b6e98e85de6ad16f8e4b0844a154557eca991"},
-]
-
-[package.extras]
-docs = ["furo", "jaraco.packaging (>=9.3)", "rst.linker (>=1.9)", "sphinx (>=3.5)", "sphinx-lint"]
-testing = ["jaraco.test", "pytest (!=8.0.*)", "pytest (>=6,!=8.1.*)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)"]
-
 [[package]]
 name = "beartype"
 version = "0.22.9"
@@ -449,10 +416,7 @@ files = [
 ]
 
 [package.dependencies]
-cffi = [
-    {version = ">=1.0.0", markers = "python_version < \"3.13\""},
-    {version = ">=1.17.0", markers = "python_version >= \"3.13\""},
-]
+cffi = {version = ">=1.17.0", markers = "python_version >= \"3.13\""}
 
 [[package]]
 name = "burner-redis"
@@ -1012,9 +976,6 @@ files = [
     {file = "exceptiongroup-1.3.1.tar.gz", hash = "sha256:8b412432c6055b0b7d14c310000ae93352ed6754f70fa8f7c34141f91c4e3219"},
 ]
 
-[package.dependencies]
-typing-extensions = {version = ">=4.6.0", markers = "python_version < \"3.13\""}
-
 [package.extras]
 test = ["pytest (>=6)"]
 
@@ -1491,7 +1452,6 @@ files = [
 
 [package.dependencies]
 python-dateutil = "*"
-typing-extensions = {version = ">=4.10,<5.0", markers = "python_version < \"3.13\""}
 tzdata = ">=2025.3"
 
 [[package]]
@@ -1548,31 +1508,6 @@ files = [
 [package.extras]
 all = ["mypy (>=1.11.2)", "pytest (>=8.3.2)", "ruff (>=0.6.2)"]
 
-[[package]]
-name = "importlib-metadata"
-version = "9.0.0"
-description = "Read metadata from Python packages"
-optional = false
-python-versions = ">=3.10"
-groups = ["main"]
-markers = "python_version == \"3.11\""
-files = [
-    {file = "importlib_metadata-9.0.0-py3-none-any.whl", hash = "sha256:2d21d1cc5a017bd0559e36150c21c830ab1dc304dedd1b7ea85d20f45ef3edd7"},
-    {file = "importlib_metadata-9.0.0.tar.gz", hash = "sha256:a4f57ab599e6a2e3016d7595cfd72eb4661a5106e787a95bcc90c7105b831efc"},
-]
-
-[package.dependencies]
-zipp = ">=3.20"
-
-[package.extras]
-check = ["pytest-checkdocs (>=2.14)", "pytest-ruff (>=0.2.1) ; sys_platform != \"cygwin\""]
-cover = ["pytest-cov"]
-doc = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (>=3.5)", "sphinx-lint"]
-enabler = ["pytest-enabler (>=3.4)"]
-perf = ["ipython"]
-test = ["packaging", "pyfakefs", "pytest (>=6,!=8.1.*)", "pytest-perf (>=0.9.2)"]
-type = ["pytest-mypy (>=1.0.1) ; platform_python_implementation != \"PyPy\""]
-
 [[package]]
 name = "jaraco-classes"
 version = "3.4.0"
@@ -1604,9 +1539,6 @@ files = [
     {file = "jaraco_context-6.1.2.tar.gz", hash = "sha256:f1a6c9d391e661cc5b8d39861ff077a7dc24dc23833ccee564b234b81c82dfe3"},
 ]
 
-[package.dependencies]
-"backports.tarfile" = {version = "*", markers = "python_version < \"3.12\""}
-
 [package.extras]
 check = ["pytest-checkdocs (>=2.14)", "pytest-ruff (>=0.2.1) ; sys_platform != \"cygwin\""]
 cover = ["pytest-cov"]
@@ -1899,7 +1831,6 @@ files = [
 ]
 
 [package.dependencies]
-importlib_metadata = {version = ">=4.11.4", markers = "python_version < \"3.12\""}
 "jaraco.classes" = "*"
 "jaraco.context" = "*"
 "jaraco.functools" = "*"
@@ -1975,10 +1906,7 @@ httpx-sse = ">=0.4.0,<1.0.0"
 langchain = ">=0.3.27,<2.0.0"
 langchain-core = ">=0.3.78,<2.0.0"
 langsmith = ">=0.1.125,<1.0.0"
-numpy = [
-    {version = ">=1.26.2", markers = "python_version < \"3.13\""},
-    {version = ">=2.1.0", markers = "python_version >= \"3.13\""},
-]
+numpy = {version = ">=2.1.0", markers = "python_version >= \"3.13\""}
 pydantic-settings = ">=2.10.1,<3.0.0"
 PyYAML = ">=5.3.0,<7.0.0"
 requests = ">=2.32.5,<3.0.0"
@@ -2713,89 +2641,6 @@ utls = ["urllib3-future[utls]"]
 ws = ["urllib3-future[ws]"]
 zstd = ["urllib3-future[zstd]"]
 
-[[package]]
-name = "numpy"
-version = "2.4.6"
-description = "Fundamental package for array computing in Python"
-optional = false
-python-versions = ">=3.11"
-groups = ["main"]
-markers = "python_version < \"3.13\""
-files = [
-    {file = "numpy-2.4.6-cp311-cp311-macosx_10_9_x86_64.whl", hash = "sha256:0280e0356c0829a18d9de1cb7eee50ec22ca639878d7240307ca0943d73cd2c4"},
-    {file = "numpy-2.4.6-cp311-cp311-macosx_11_0_arm64.whl", hash = "sha256:110f8b71aacb688ec69062bb7f6938a0f8acb01b7c1c4beb453c65b6d234584d"},
-    {file = "numpy-2.4.6-cp311-cp311-macosx_14_0_arm64.whl", hash = "sha256:4cfe66903cc32a9921a6733d96b19bb6abf310397581bbad89c228f5abaf0ee8"},
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-    {file = "numpy-2.4.6.tar.gz", hash = "sha256:f3a3570c4a2a16746ac2c31a7c7c7b0c186b95ce902e33db6f28094ed7387dda"},
-]
-
 [[package]]
 name = "numpy"
 version = "2.5.1"
@@ -2803,7 +2648,6 @@ description = "Fundamental package for array computing in Python"
 optional = false
 python-versions = ">=3.12"
 groups = ["main"]
-markers = "python_version >= \"3.13\""
 files = [
     {file = "numpy-2.5.1-cp312-cp312-macosx_10_13_x86_64.whl", hash = "sha256:2c889b56fe48b1018f764b0eec8df59ab654e9148aa91faa12596043500de277"},
     {file = "numpy-2.5.1-cp312-cp312-macosx_11_0_arm64.whl", hash = "sha256:ab451b59c5643c570974c43aef780703ef1d3b4965d2be07afd530615a9358d1"},
@@ -3796,7 +3640,7 @@ description = "A lightway and fast implementation of QUIC and HTTP/3"
 optional = false
 python-versions = ">=3.7"
 groups = ["main"]
-markers = "(platform_machine == \"x86_64\" or platform_machine == \"s390x\" or platform_machine == \"armv7l\" or platform_machine == \"ppc64le\" or platform_machine == \"ppc64\" or platform_machine == \"AMD64\" or platform_machine == \"aarch64\" or platform_machine == \"arm64\" or platform_machine == \"ARM64\" or platform_machine == \"x86\" or platform_machine == \"i686\" or platform_machine == \"riscv64\" or platform_machine == \"riscv64gc\") and (platform_system == \"Darwin\" or platform_system == \"Windows\" or platform_system == \"Linux\") and (platform_python_implementation == \"CPython\" or platform_python_implementation == \"PyPy\") and (platform_python_implementation == \"CPython\" or python_version == \"3.11\")"
+markers = "(platform_system == \"Darwin\" or platform_system == \"Windows\" or platform_system == \"Linux\") and (platform_machine == \"x86_64\" or platform_machine == \"s390x\" or platform_machine == \"armv7l\" or platform_machine == \"ppc64le\" or platform_machine == \"ppc64\" or platform_machine == \"AMD64\" or platform_machine == \"aarch64\" or platform_machine == \"arm64\" or platform_machine == \"ARM64\" or platform_machine == \"x86\" or platform_machine == \"i686\" or platform_machine == \"riscv64\" or platform_machine == \"riscv64gc\") and platform_python_implementation == \"CPython\""
 files = [
     {file = "qh3-1.9.4-cp313-cp313t-macosx_10_12_x86_64.macosx_11_0_arm64.macosx_10_12_universal2.whl", hash = "sha256:66567176a55bc92f12a7cdaae6d0245f808333a6a55221f37577f79c56848b71"},
     {file = "qh3-1.9.4-cp313-cp313t-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:a931eba5b6b11292ed65e164a416b78a50139fb9c9dc9dce90006cbd853d1fdd"},
@@ -3949,9 +3793,6 @@ files = [
     {file = "redis-8.1.0.tar.gz", hash = "sha256:6e1a19beef9225c83efd689c7e6b7da2d5215b1f42cd13b7fc3714d0a09c7b25"},
 ]
 
-[package.dependencies]
-async-timeout = {version = ">=4.0.3", markers = "python_full_version < \"3.11.3\""}
-
 [package.extras]
 circuit-breaker = ["pybreaker (>=1.4.0)"]
 hiredis = ["hiredis (>=3.2.0)"]
@@ -3975,7 +3816,6 @@ files = [
 [package.dependencies]
 attrs = ">=22.2.0"
 rpds-py = ">=0.7.0"
-typing-extensions = {version = ">=4.4.0", markers = "python_version < \"3.13\""}
 
 [[package]]
 name = "requests"
@@ -4391,7 +4231,6 @@ files = [
 
 [package.dependencies]
 anyio = ">=3.6.2,<5"
-typing-extensions = {version = ">=4.10.0", markers = "python_version < \"3.13\""}
 
 [package.extras]
 full = ["httpx (>=0.27.0,<0.29.0)", "httpx2 (>=2.0.0)", "itsdangerous", "jinja2", "python-multipart (>=0.0.18)", "pyyaml"]
@@ -5191,27 +5030,6 @@ files = [
 [package.dependencies]
 requests = "*"
 
-[[package]]
-name = "zipp"
-version = "4.1.0"
-description = "Backport of pathlib-compatible object wrapper for zip files"
-optional = false
-python-versions = ">=3.10"
-groups = ["main"]
-markers = "python_version == \"3.11\""
-files = [
-    {file = "zipp-4.1.0-py3-none-any.whl", hash = "sha256:25ad4e16390cd314347dd8f1de67a2ac538ae658ed4ab9db16029c07c188e97f"},
-    {file = "zipp-4.1.0.tar.gz", hash = "sha256:4cb57381f544315db7688e976e922a2b18cdb513d21cc194eb42232ba2a3e602"},
-]
-
-[package.extras]
-check = ["pytest-checkdocs (>=2.14)", "pytest-ruff (>=0.2.1) ; sys_platform != \"cygwin\""]
-cover = ["pytest-cov"]
-doc = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (>=3.5)", "sphinx-lint"]
-enabler = ["pytest-enabler (>=3.4)"]
-test = ["big-O", "jaraco.functools", "jaraco.itertools", "jaraco.test", "more_itertools", "pytest (>=6,!=8.1.*)", "pytest-ignore-flaky"]
-type = ["pytest-mypy (>=1.0.1) ; platform_python_implementation != \"PyPy\""]
-
 [[package]]
 name = "zstandard"
 version = "0.25.0"
@@ -5326,5 +5144,5 @@ cffi = ["cffi (>=1.17,<2.0) ; platform_python_implementation != \"PyPy\" and pyt
 
 [metadata]
 lock-version = "2.1"
-python-versions = ">=3.11,<4"
-content-hash = "97611da2fa2c136637f4bed7a31ca500949c0f0d869776823b98f774c1665da0"
+python-versions = ">=3.13,<4"
+content-hash = "915189f6a3a36e16644364b4844a2d31143e745be54d3af84157fdfe83be3083"
diff --git a/pyproject.toml b/pyproject.toml
index 1ca2173..afd8b2b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ readme = "README.md"
 package-mode = false
 
 [tool.poetry.dependencies]
-python = ">=3.11,<4"
+python = ">=3.13,<4"
 nc-py-api = {version = "^0.30.3", extras = ["calendar"]}
 langgraph = "1.*"
 langchain = "^0.3.25"
@@ -47,7 +47,7 @@ extend-ignore = ["D101", "D102", "D103", "D105", "D107", "D203", "D213", "D401",
 profile = "black"
 
 [tool.pylint]
-master.py-version = "3.11"
+master.py-version = "3.13"
 master.extension-pkg-allow-list = ["pydantic"]
 design.max-attributes = 8
 design.max-locals = 16