diff --git a/.github/workflows/pypi.yaml b/.github/workflows/pypi.yaml
index beecd7e..2137908 100644
--- a/.github/workflows/pypi.yaml
+++ b/.github/workflows/pypi.yaml
@@ -10,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
     - name: Set up Python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v5
       with:
         python-version: '3.12'
     - name: Install dependencies
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f57819c..60ecdb3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -5,11 +5,25 @@ on:
 
 jobs:
   test:
+    strategy:
+      matrix:
+        pyver: ['3.8', '3.9', '3.10', '3.11', '3.12']
     runs-on: ubuntu-latest
+    name: ${{ matrix.pyver }}
     steps:
     - name: Checkout repository
       uses: actions/checkout@v4
-    - name: Check Install
-      run: make venv
+    - name: Set up Python ${{ matrix.pyver }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.pyver }}
+    - name: Install
+      run: pip install .
     - name: Run tests
       run: make test
+    - name: Upload results on failure
+      if: failure()
+      uses: actions/upload-artifact@v4
+      with:
+        name: results
+        path: tests/results
diff --git a/.gitignore b/.gitignore
index e32f884..977eda6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,5 +2,4 @@ __pycache__
 build
 ignore
 results
-venv
 *.egg-info
diff --git a/Makefile b/Makefile
index 9a2ade9..6445d20 100644
--- a/Makefile
+++ b/Makefile
@@ -15,9 +15,6 @@ lint:
 test:
 	cd tests && bash run.sh
 
-venv:
-	bash venv.sh
-
 clean:
 	py3clean .
 	rm -fr .pytest_cache
diff --git a/README.md b/README.md
index e31a08b..2d36cdc 100644
--- a/README.md
+++ b/README.md
@@ -12,8 +12,8 @@ It relies on [Docker](https://docs.docker.com/get-docker) and [PyFPGA containers
 # Documentation
 
 ```
-usage: vhdl2vhdl [-h] [-v] [-g GENERIC VALUE] [-a ARCH] [-f FILENAME]
-                 [-o PATH] -t TOPNAME
+usage: vhdl2vhdl [-h] [-v] [--no-docker] [-g GENERIC VALUE] [-a ARCH]
+                 [-f FILENAME] [-o PATH] -t TOPNAME
                  FILE[,LIBRARY] [FILE[,LIBRARY] ...]
 
 VHDL to VHDL
@@ -24,6 +24,7 @@ positional arguments:
 optional arguments:
   -h, --help            show this help message and exit
   -v, --version         show program's version number and exit
+  --no-docker           do not use Docker (use system tools instead)
   -g GENERIC VALUE, --generic GENERIC VALUE
                         specify a top-level Generic (can be specified multiple
                         times)
@@ -36,8 +37,8 @@ optional arguments:
 ```
 
 ```
-usage: vhdl2vlog [-h] [-v] [--backend TOOL] [-g GENERIC VALUE] [-a ARCH]
-                 [-f FILENAME] [-o PATH] -t TOPNAME
+usage: vhdl2vlog [-h] [-v] [--no-docker] [--backend TOOL] [-g GENERIC VALUE]
+                 [-a ARCH] [-f FILENAME] [-o PATH] -t TOPNAME
                  FILE[,LIBRARY] [FILE[,LIBRARY] ...]
 
 VHDL to Verilog
@@ -48,6 +49,7 @@ positional arguments:
 optional arguments:
   -h, --help            show this help message and exit
   -v, --version         show program's version number and exit
+  --no-docker           do not use Docker (use system tools instead)
   --backend TOOL        backend tool [ghdl]
   -g GENERIC VALUE, --generic GENERIC VALUE
                         specify a top-level Generic (can be specified multiple
@@ -61,7 +63,7 @@ optional arguments:
 ```
 
 ```
-usage: slog2vlog [-h] [-v] [--frontend TOOL] [-p PARAM VALUE]
+usage: slog2vlog [-h] [-v] [--no-docker] [--frontend TOOL] [-p PARAM VALUE]
                  [-d DEFINE VALUE] [-i PATH] [-f FILENAME] [-o PATH] -t
                  TOPNAME
                  FILE [FILE ...]
@@ -74,6 +76,7 @@ positional arguments:
 optional arguments:
   -h, --help            show this help message and exit
   -v, --version         show program's version number and exit
+  --no-docker           do not use Docker (use system tools instead)
   --frontend TOOL       frontend tool [slang]
   -p PARAM VALUE, --param PARAM VALUE
                         specify a top-level Parameter (can be specified
diff --git a/hdlconv/__init__.py b/hdlconv/__init__.py
index e9ed53c..ef224bb 100644
--- a/hdlconv/__init__.py
+++ b/hdlconv/__init__.py
@@ -1,3 +1,3 @@
 """hdlconv version"""
 
-__version__ = '0.1.1'
+__version__ = '0.2.0'
diff --git a/hdlconv/core.py b/hdlconv/core.py
index d9918cd..63262ce 100644
--- a/hdlconv/core.py
+++ b/hdlconv/core.py
@@ -55,6 +55,11 @@ def get_args(src, dst):
         action='version',
         version=f'HDLconv {prog} - v{version}'
     )
+    parser.add_argument(
+        '--no-docker',
+        action='store_true',
+        help='do not use Docker (use system tools instead)'
+    )
     if src == 'slog':
         parser.add_argument(
             '--frontend',
@@ -172,6 +177,9 @@ def get_data(src, dst, args):
             if not file.exists():
                 raise FileNotFoundError(file)
             data.setdefault('files', []).append(file)
+        data.setdefault('volumes', set()).add(Path('/') / file.parts[1])
+    data['volumes'] = list(data['volumes'])
+    data['docker'] = not args.no_docker
     return data
 
 
@@ -228,8 +236,9 @@ def run_tool(content, odir, filename):
 
 def hdlconv(src, dst):
     """HDL conversion entry-point"""
-    check_docker()
     args = get_args(src, dst)
+    if not args.no_docker:
+        check_docker()
     if args.filename is None:
         args.filename = args.top.lower()
         args.filename += '.vhdl' if dst == 'vhdl' else '.v'
diff --git a/hdlconv/templates/docker.jinja b/hdlconv/templates/docker.jinja
index fbfcd27..8c4de64 100644
--- a/hdlconv/templates/docker.jinja
+++ b/hdlconv/templates/docker.jinja
@@ -1,2 +1,4 @@
+{% if docker %}
 CONTAINER="ghcr.io/pyfpga/synthesis"
-DOCKER="docker run --rm -v $HOME:$HOME -v $PWD:$PWD -w $PWD --user $(id -u):$(id -g) $CONTAINER"
+DOCKER="docker run --rm{% for volume in volumes %} -v {{ volume }}:{{ volume }}{% endfor %} -w $PWD --user $(id -u):$(id -g) $CONTAINER"
+{% endif %}
diff --git a/tests/run.sh b/tests/run.sh
index a0179e7..c5cd66b 100644
--- a/tests/run.sh
+++ b/tests/run.sh
@@ -4,12 +4,20 @@ set -e
 
 export PYTHONPATH=$(pwd)/..
 
+#
+# Sanity
+#
+
 python3 ../hdlconv/vhdl2vhdl.py --top Counter hdl/vhdl/counter.vhdl
 
 python3 ../hdlconv/vhdl2vlog.py --top Counter hdl/vhdl/counter.vhdl
 
 python3 ../hdlconv/slog2vlog.py --top Counter hdl/slog/counter.sv
 
+#
+# vhdl2vhdl
+#
+
 python3 ../hdlconv/vhdl2vhdl.py --filename conv1.vhdl \
   --top Counter hdl/vhdl/counter.vhdl
 
@@ -17,6 +25,10 @@ python3 ../hdlconv/vhdl2vhdl.py --filename conv2.vhdl \
   --generic FREQ 10000000 --generic SECS 1 --arch Arch --top Top \
   hdl/vhdl/blink.vhdl,blink_lib hdl/vhdl/blink_pkg.vhdl,blink_lib hdl/vhdl/top.vhdl
 
+#
+# vhdl2vlog
+#
+
 python3 ../hdlconv/vhdl2vlog.py --filename conv3.v --top Counter hdl/vhdl/counter.vhdl
 
 python3 ../hdlconv/vhdl2vlog.py --filename conv4.v \
@@ -30,6 +42,10 @@ python3 ../hdlconv/vhdl2vlog.py --backend yosys --filename conv6.v \
   --generic FREQ 10000000 --generic SECS 1 --arch Arch --top Top \
   hdl/vhdl/blink.vhdl,blink_lib hdl/vhdl/blink_pkg.vhdl,blink_lib hdl/vhdl/top.vhdl
 
+#
+# slog2vlog
+#
+
 python3 ../hdlconv/slog2vlog.py --filename conv7.v \
   --top Counter hdl/slog/counter.sv
 
@@ -56,3 +72,15 @@ python3 ../hdlconv/slog2vlog.py --frontend yosys --filename convC.v \
   --define DEFINE1 1 --define DEFINE2 1 \
   --param FREQ 10000000 --param SECS 1 \
   --top Top hdl/slog/blink.sv hdl/slog/top.sv
+
+#
+# Misc
+#
+
+# More than one Docker volume
+
+cp hdl/vhdl/top.vhdl /tmp
+
+python3 ../hdlconv/vhdl2vhdl.py --filename convD.vhdl \
+  --generic FREQ 10000000 --generic SECS 1 --arch Arch --top Top \
+  hdl/vhdl/blink.vhdl,blink_lib hdl/vhdl/blink_pkg.vhdl,blink_lib /tmp/top.vhdl
diff --git a/venv.sh b/venv.sh
deleted file mode 100644
index b455a7a..0000000
--- a/venv.sh
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/bash
-
-set -e
-
-python3 -m venv venv
-source venv/bin/activate
-pip install --upgrade pip setuptools wheel
-pip install .
-vhdl2vhdl -v
-vhdl2vlog -v
-slog2vlog -v
-deactivate