diff --git a/.drone.yml b/.drone.yml
index ac81a3c..f240775 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -1,48 +1,74 @@
 ---
 kind: pipeline
 type: docker
-name: python-ci
+name: python-uv-ci
 
 trigger:
   event: [ push, pull_request ]
 
+volumes:
+  - name: uv-cache
+    temp: {}
+  - name: uv-home
+    temp: {}  # persists ~/.local (uv tool shims/envs) across steps in this run
+
 steps:
-  - name: setup+deps
-    image: python:3.12-slim
+  - name: lint+typecheck
+    image: python:3.13-slim
+    volumes:
+      - name: uv-cache
+        path: /root/.cache/uv
+      - name: uv-home
+        path: /root/.local
     environment:
       UV_NO_SYNC_PROGRESS: "1"
     commands:
-      - python -V
       - apt-get update && apt-get install -y curl ca-certificates && rm -rf /var/lib/apt/lists/*
       - curl -LsSf https://astral.sh/uv/install.sh | sh
       - export PATH="$HOME/.local/bin:$PATH"
-      # pick python version (use .python-version if present, else 3.12)
-      - PYVER="$( [ -f .python-version ] && cat .python-version || echo 3.12 )"
-      - uv python install "$PYVER"
-      - uv venv .venv
-      - . .venv/bin/activate
-      # install project + dev tools
-      - |
-        if [ -f pyproject.toml ] && grep -q "\[tool\.uv\]" pyproject.toml; then
-          uv sync --all-extras --dev
-        else
-          uv pip install -e ".[dev]" || true
-          if [ -f requirements.txt ]; then uv pip install -r requirements.txt; fi
-        fi
-      - uv pip install pytest pytest-cov mypy ruff
-
-  - name: lint-typecheck
-    image: python:3.12-slim
-    commands:
-      - export PATH="$HOME/.local/bin:$PATH"
-      - . .venv/bin/activate
+      - uv python install 3.13
+      - uv sync --all-extras --dev
+      # install CLI tools (ruff not bundled by default)
+      - uv tool install ruff 
+      - uv tool install mypy
+      - ruff --version
+      - mypy --version
       - ruff check .
       - mypy --ignore-missing-imports .
 
   - name: test
-    image: python:3.12-slim
+    image: python:3.13-slim
+    volumes:
+      - name: uv-cache
+        path: /root/.cache/uv
+      - name: uv-home
+        path: /root/.local
+    environment:
+      UV_NO_SYNC_PROGRESS: "1"
     commands:
+      - apt-get update && apt-get install -y curl ca-certificates && rm -rf /var/lib/apt/lists/*
+      - curl -LsSf https://astral.sh/uv/install.sh | sh
       - export PATH="$HOME/.local/bin:$PATH"
-      - . .venv/bin/activate
+      - uv python install 3.13
+      - uv sync --all-extras --dev
+      # tools already installed in previous step; safe to re-run for idempotency
+      - uv add pytest pytest-cov
       - pytest -q --maxfail=1 --disable-warnings --cov --cov-report=term-missing
 
+  - name: build-wheel
+    image: python:3.13-slim
+    volumes:
+      - name: uv-cache
+        path: /root/.cache/uv
+      - name: uv-home
+        path: /root/.local
+    environment:
+      UV_NO_SYNC_PROGRESS: "1"
+    commands:
+      - apt-get update && apt-get install -y curl ca-certificates && rm -rf /var/lib/apt/lists/*
+      - curl -LsSf https://astral.sh/uv/install.sh | sh
+      - export PATH="$HOME/.local/bin:$PATH"
+      - uv python install 3.13
+      - uv sync --all-extras --dev
+      - uv build
+      - ls -lh dist