diff --git a/.gitignore b/.gitignore
index 960f359..11b37d9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
 *.pyc
 *.swp
 .venv
-
+dist/
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..f3dc6a9
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,34 @@
+VERSION="0.0.1"
+
+help:
+	@echo "The following make targets are available:\n"
+	@echo "   dep          install dependencies (requirements)"
+	@echo "   dep-dev      install dependencies for packaging"
+	@echo "   build        build python package"
+	@echo "   install      install python package"
+	@echo "   pypi         upload package to pypi"
+	@echo "   clean        clean up package and cruft"
+.PHONEY: help
+
+
+dep:
+	python -m pip install -r requirements.txt
+.PHONEY: dep
+
+dep-dev:
+	python -m pip install -r requirements-dev.txt --upgrade
+.PHONEY: dep-dev
+
+build: 
+	python -m build
+.PHONEY: build
+
+install: 
+	python -m pip install dist/ut8803e-$(VERSION).tar.gz
+.PHONEY: install
+
+clean:
+	rm -rf dist
+	rm -rf src/ut8803e.egg-info
+	rm -rf src/ut8803e/__pycache__
+.PHONEY: clean
diff --git a/protocol.md b/protocol.md
new file mode 100644
index 0000000..6a14ebf
--- /dev/null
+++ b/protocol.md
@@ -0,0 +1,48 @@
+# Protocol
+
+To my knowledge, there is no official protocoll documentation published by the
+manufacturer. So the protocol and data formats described below were reverse
+engineered. By sniffing the communication between the instrument and the
+original vendor software.
+
+If you are interested in the revering process you can read about it in my
+[blog](https://techbotch.org/blog/ut8803e-bench-meter/) (sorry, German only).
+
+The instrument speaks USB-HID via the integrated CP2110 USB UART bridge.
+Commands and data records are binary.
+
+
+## Data logging
+
+The instrument continuously streams measurement data at a rate of about 3
+readings per second. This happens automatically – no specific polling command
+is required.
+
+## Commands
+
+The following commands (given in hex) are supported and do exactly what the
+corresponding press of a physical button would do:
+
+    abcd04460001c2    # Hold
+    abcd04470001c3    # Back light
+    abcd04480001c4    # Select
+    abcd04490001c5    # Manual Range
+    abcd044a0001c6    # Auto Range
+    abcd044b0001c7    # Min/Max
+    abcd044c0001c8    # Exit Min/max
+    abcd044d0001c9    # Rel
+    abcd044e0001ca    # D Value
+    abcd044f0001cb    # Q Value
+    abcd04500001cc    # Exit DQR
+    abcd04510001cd    # R value
+    abcd04580001d4    # request device-ID
+
+The original vendor software (Windows only) always sends some kind of
+confirmation package after each command package (`abcd045a0001d6`). However, it
+is unclear what this really does because all command packages I tested seem to
+work fine without the extra package.
+
+
+
+
+
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..fa36790
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,20 @@
+[build-system]
+requires = ["setuptools", "wheel"]
+build-backend = "setuptools.build_meta"
+[project]
+name = "ut8803e"
+version = "0.0.1"
+description = "Talking to a UNI-T UT8803/UT8803E bench multimeter"
+readme = "README.md"
+requires-python = ">=3.8"
+authors = [
+    {name="Philipp Pagel", email="phil@techboch.org" },
+    ]
+license = {text="BSD 3-Clause License"}
+dependencies = [
+    "click",
+    "pycp2110",
+    "construct",
+]
+[project.scripts]
+ut8803e = "ut8803e.ut8803e:main"
diff --git a/src/ut8803e/__init__.py b/src/ut8803e/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/ut8803e/__main__.py b/src/ut8803e/__main__.py
new file mode 100644
index 0000000..088a654
--- /dev/null
+++ b/src/ut8803e/__main__.py
@@ -0,0 +1,4 @@
+from .ut8803e import *
+
+if __name__ == '__main__':
+    main()
diff --git a/ut8803e.py b/src/ut8803e/ut8803e.py
similarity index 100%
rename from ut8803e.py
rename to src/ut8803e/ut8803e.py