diff --git a/Makefile b/Makefile
index d6924c9..ab29ce7 100644
--- a/Makefile
+++ b/Makefile
@@ -1,14 +1,18 @@
-# Generated by Medikit 0.5.2 on 2018-03-08.
+# Generated by Medikit 0.5.19 on 2018-03-29.
 # All changes will be overriden.
+# Edit Projectfile and run “make update” (or “medikit update”) to regenerate.
 
 PACKAGE ?= bonobo
-PYTHON ?= $(shell which python)
+PYTHON ?= $(shell which python || echo python)
 PYTHON_BASENAME ?= $(shell basename $(PYTHON))
 PYTHON_DIRNAME ?= $(shell dirname $(PYTHON))
 PYTHON_REQUIREMENTS_FILE ?= requirements.txt
 PYTHON_REQUIREMENTS_DEV_FILE ?= requirements-dev.txt
+PYTHON_REQUIREMENTS_DOCKER_FILE ?= requirements-docker.txt
+PYTHON_REQUIREMENTS_JUPYTER_FILE ?= requirements-jupyter.txt
+PYTHON_REQUIREMENTS_SQLALCHEMY_FILE ?= requirements-sqlalchemy.txt
 QUICK ?= 
-PIP ?= $(PYTHON_DIRNAME)/pip
+PIP ?= $(PYTHON) -m pip
 PIP_INSTALL_OPTIONS ?= 
 VERSION ?= $(shell git describe 2>/dev/null || git rev-parse --short HEAD)
 PYTEST ?= $(PYTHON_DIRNAME)/pytest
@@ -20,44 +24,113 @@ SPHINX_BUILDDIR ?= $(SPHINX_SOURCEDIR)/_build
 YAPF ?= $(PYTHON) -m yapf
 YAPF_OPTIONS ?= -rip
 SPHINX_AUTOBUILD ?= $(PYTHON_DIRNAME)/sphinx-autobuild
+MEDIKIT ?= $(PYTHON) -m medikit
+MEDIKIT_UPDATE_OPTIONS ?= 
+MEDIKIT_VERSION ?= 0.5.19
 
-.PHONY: $(SPHINX_SOURCEDIR) clean format install install-dev test update update-requirements watch-$(SPHINX_SOURCEDIR)
+.PHONY: $(SPHINX_SOURCEDIR) clean format help install install-dev install-docker install-jupyter install-sqlalchemy medikit quick test update update-requirements watch-$(SPHINX_SOURCEDIR)
 
-# Installs the local project dependencies.
-install:
-	if [ -z "$(QUICK)" ]; then \
-	    $(PIP) install -U pip wheel $(PIP_INSTALL_OPTIONS) -r $(PYTHON_REQUIREMENTS_FILE) ; \
-	fi
+install: .medikit/install   ## Installs the project.
+.medikit/install: $(PYTHON_REQUIREMENTS_FILE) setup.py
+	$(eval target := $(shell echo $@ | rev | cut -d/ -f1 | rev))
+ifeq ($(filter quick,$(MAKECMDGOALS)),quick)
+	@printf "Skipping \033[36m%s\033[0m because of \033[36mquick\033[0m target.\n" $(target)
+else ifneq ($(QUICK),)
+	@printf "Skipping \033[36m%s\033[0m because \033[36m$$QUICK\033[0m is not empty.\n" $(target)
+else
+	@printf "Applying \033[36m%s\033[0m target...\n" $(target)
+	$(PIP) install $(PIP_INSTALL_OPTIONS) -U pip wheel
+	$(PIP) install $(PIP_INSTALL_OPTIONS) -U -r $(PYTHON_REQUIREMENTS_FILE)
+	@mkdir -p .medikit; touch $@
+endif
 
-# Installs the local project dependencies, including development-only libraries.
-install-dev:
-	if [ -z "$(QUICK)" ]; then \
-	    $(PIP) install -U pip wheel $(PIP_INSTALL_OPTIONS) -r $(PYTHON_REQUIREMENTS_DEV_FILE) ; \
-	fi
+clean:   ## Cleans up the working copy.
+	rm -rf build dist *.egg-info .medikit/install .medikit/install-dev .medikit/install-docker .medikit/install-jupyter .medikit/install-sqlalchemy
+	find . -name __pycache__ -type d | xargs rm -rf
 
-# Cleans up the local mess.
-clean:
-	rm -rf build dist *.egg-info
+install-dev: .medikit/install-dev   ## Installs the project (with dev dependencies).
+.medikit/install-dev: $(PYTHON_REQUIREMENTS_DEV_FILE) $(PYTHON_REQUIREMENTS_FILE) setup.py
+	$(eval target := $(shell echo $@ | rev | cut -d/ -f1 | rev))
+ifeq ($(filter quick,$(MAKECMDGOALS)),quick)
+	@printf "Skipping \033[36m%s\033[0m because of \033[36mquick\033[0m target.\n" $(target)
+else ifneq ($(QUICK),)
+	@printf "Skipping \033[36m%s\033[0m because \033[36m$$QUICK\033[0m is not empty.\n" $(target)
+else
+	@printf "Applying \033[36m%s\033[0m target...\n" $(target)
+	$(PIP) install $(PIP_INSTALL_OPTIONS) -U pip wheel
+	$(PIP) install $(PIP_INSTALL_OPTIONS) -U -r $(PYTHON_REQUIREMENTS_DEV_FILE)
+	@mkdir -p .medikit; touch $@
+endif
 
-# Update project artifacts using medikit, after installing it eventually.
-update:
-	python -c 'import medikit; print(medikit.__version__)' || pip install medikit;
-	$(PYTHON) -m medikit update
+quick:   #
+	@printf ""
 
-# Remove requirements files and update project artifacts using medikit, after installing it eventually.
-update-requirements:
-	rm -rf requirements*.txt
-	$(MAKE) update
+install-docker: .medikit/install-docker   ## Installs the project (with docker dependencies).
+.medikit/install-docker: $(PYTHON_REQUIREMENTS_DOCKER_FILE) $(PYTHON_REQUIREMENTS_FILE) setup.py
+	$(eval target := $(shell echo $@ | rev | cut -d/ -f1 | rev))
+ifeq ($(filter quick,$(MAKECMDGOALS)),quick)
+	@printf "Skipping \033[36m%s\033[0m because of \033[36mquick\033[0m target.\n" $(target)
+else ifneq ($(QUICK),)
+	@printf "Skipping \033[36m%s\033[0m because \033[36m$$QUICK\033[0m is not empty.\n" $(target)
+else
+	@printf "Applying \033[36m%s\033[0m target...\n" $(target)
+	$(PIP) install $(PIP_INSTALL_OPTIONS) -U pip wheel
+	$(PIP) install $(PIP_INSTALL_OPTIONS) -U -r $(PYTHON_REQUIREMENTS_DOCKER_FILE)
+	@mkdir -p .medikit; touch $@
+endif
 
-test: install-dev
+install-jupyter: .medikit/install-jupyter   ## Installs the project (with jupyter dependencies).
+.medikit/install-jupyter: $(PYTHON_REQUIREMENTS_FILE) $(PYTHON_REQUIREMENTS_JUPYTER_FILE) setup.py
+	$(eval target := $(shell echo $@ | rev | cut -d/ -f1 | rev))
+ifeq ($(filter quick,$(MAKECMDGOALS)),quick)
+	@printf "Skipping \033[36m%s\033[0m because of \033[36mquick\033[0m target.\n" $(target)
+else ifneq ($(QUICK),)
+	@printf "Skipping \033[36m%s\033[0m because \033[36m$$QUICK\033[0m is not empty.\n" $(target)
+else
+	@printf "Applying \033[36m%s\033[0m target...\n" $(target)
+	$(PIP) install $(PIP_INSTALL_OPTIONS) -U pip wheel
+	$(PIP) install $(PIP_INSTALL_OPTIONS) -U -r $(PYTHON_REQUIREMENTS_JUPYTER_FILE)
+	@mkdir -p .medikit; touch $@
+endif
+
+install-sqlalchemy: .medikit/install-sqlalchemy   ## Installs the project (with sqlalchemy dependencies).
+.medikit/install-sqlalchemy: $(PYTHON_REQUIREMENTS_FILE) $(PYTHON_REQUIREMENTS_SQLALCHEMY_FILE) setup.py
+	$(eval target := $(shell echo $@ | rev | cut -d/ -f1 | rev))
+ifeq ($(filter quick,$(MAKECMDGOALS)),quick)
+	@printf "Skipping \033[36m%s\033[0m because of \033[36mquick\033[0m target.\n" $(target)
+else ifneq ($(QUICK),)
+	@printf "Skipping \033[36m%s\033[0m because \033[36m$$QUICK\033[0m is not empty.\n" $(target)
+else
+	@printf "Applying \033[36m%s\033[0m target...\n" $(target)
+	$(PIP) install $(PIP_INSTALL_OPTIONS) -U pip wheel
+	$(PIP) install $(PIP_INSTALL_OPTIONS) -U -r $(PYTHON_REQUIREMENTS_SQLALCHEMY_FILE)
+	@mkdir -p .medikit; touch $@
+endif
+
+test: install-dev  ## Runs the test suite.
 	$(PYTEST) $(PYTEST_OPTIONS) tests
 
-$(SPHINX_SOURCEDIR): install-dev
+$(SPHINX_SOURCEDIR): install-dev  ##
 	$(SPHINX_BUILD) -b html -D latex_paper_size=a4 $(SPHINX_OPTIONS) $(SPHINX_SOURCEDIR) $(SPHINX_BUILDDIR)/html
 
-format: install-dev
+format: install-dev  ## Reformats the whole python codebase using yapf.
 	$(YAPF) $(YAPF_OPTIONS) .
 	$(YAPF) $(YAPF_OPTIONS) Projectfile
 
-watch-$(SPHINX_SOURCEDIR):
+watch-$(SPHINX_SOURCEDIR):   ##
 	$(SPHINX_AUTOBUILD) $(SPHINX_SOURCEDIR) $(shell mktemp -d)
+
+medikit:   # Checks installed medikit version and updates it if it is outdated.
+	@$(PYTHON) -c 'import medikit, sys; from packaging.version import Version; sys.exit(0 if Version(medikit.__version__) >= Version("$(MEDIKIT_VERSION)") else 1)' || $(PYTHON) -m pip install -U "medikit>=$(MEDIKIT_VERSION)"
+
+update: medikit  ## Update project artifacts using medikit.
+	$(MEDIKIT) update $(MEDIKIT_UPDATE_OPTIONS)
+
+update-requirements:   ## Update project artifacts using medikit, including requirements files.
+	MEDIKIT_UPDATE_OPTIONS="--override-requirements" $(MAKE) update
+
+help:   ## Shows available commands.
+	@echo "Available commands:"
+	@echo
+	@grep -E '^[a-zA-Z_-]+:.*?##[\s]?.*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?##"}; {printf "    make \033[36m%-30s\033[0m %s\n", $$1, $$2}'
+	@echo
diff --git a/Projectfile b/Projectfile
index e5d6887..69924c2 100644
--- a/Projectfile
+++ b/Projectfile
@@ -46,7 +46,7 @@ python.add_requirements(
     'graphviz >=0.8,<0.9',
     'jinja2 ~=2.9',
     'mondrian ~=0.6',
-    'packaging ~=16.0',
+    'packaging ~=17.0',
     'psutil ~=5.4',
     'python-slugify ~=1.2.0',
     'requests ~=2.0',
diff --git a/requirements-dev.txt b/requirements-dev.txt
index ab71e69..2989475 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,5 @@
 -e .[dev]
+-r requirements.txt
 alabaster==0.7.10
 arrow==0.12.1
 attrs==17.4.0
@@ -8,31 +9,32 @@ certifi==2018.1.18
 chardet==3.0.4
 click==6.7
 cookiecutter==1.5.1
-coverage==4.4.2
+coverage==4.5.1
 docutils==0.14
 future==0.16.0
 idna==2.6
-imagesize==0.7.1
+imagesize==1.0.0
 jinja2-time==0.2.0
 jinja2==2.10
 markupsafe==1.0
+more-itertools==4.1.0
+packaging==17.1
 pluggy==0.6.0
 poyo==0.4.1
-py==1.5.2
+py==1.5.3
 pygments==2.2.0
+pyparsing==2.2.0
 pytest-cov==2.5.1
-pytest-sugar==0.8.0
 pytest-timeout==1.2.1
-pytest==3.4.0
-python-dateutil==2.6.1
-pytz==2017.3
+pytest==3.5.0
+python-dateutil==2.7.2
+pytz==2018.3
 requests==2.18.4
 six==1.11.0
 snowballstemmer==1.2.1
 sphinx-sitemap==0.2
-sphinx==1.6.6
+sphinx==1.7.2
 sphinxcontrib-websupport==1.0.1
-termcolor==1.1.0
 urllib3==1.22
 whichcraft==0.4.1
-yapf==0.20.1
+yapf==0.21.0
diff --git a/requirements-docker.txt b/requirements-docker.txt
index e685085..7c9c7bf 100644
--- a/requirements-docker.txt
+++ b/requirements-docker.txt
@@ -1,28 +1,29 @@
 -e .[docker]
+-r requirements.txt
 appdirs==1.4.3
 bonobo-docker==0.6.0
 certifi==2018.1.18
 chardet==3.0.4
 colorama==0.3.9
-docker-pycreds==0.2.1
+docker-pycreds==0.2.2
 docker==2.7.0
-fs==2.0.18
+fs==2.0.20
 graphviz==0.8.2
 idna==2.6
 jinja2==2.10
 markupsafe==1.0
-mondrian==0.6.1
+mondrian==0.6.6
 packaging==16.8
-pbr==3.1.1
+pbr==4.0.0
 psutil==5.4.3
 pyparsing==2.2.0
-python-slugify==1.2.4
-pytz==2017.3
+python-slugify==1.2.5
+pytz==2018.3
 requests==2.18.4
 semantic-version==2.6.0
 six==1.11.0
 stevedore==1.28.0
 unidecode==1.0.22
 urllib3==1.22
-websocket-client==0.46.0
-whistle==1.0.0
+websocket-client==0.47.0
+whistle==1.0.1
diff --git a/requirements-jupyter.txt b/requirements-jupyter.txt
index fa0f4c4..1f15f99 100644
--- a/requirements-jupyter.txt
+++ b/requirements-jupyter.txt
@@ -1,17 +1,18 @@
 -e .[jupyter]
+-r requirements.txt
 appnope==0.1.0
-bleach==2.1.2
+bleach==2.1.3
 decorator==4.2.1
 entrypoints==0.2.3
 html5lib==1.0.1
-ipykernel==4.8.0
+ipykernel==4.8.2
 ipython-genutils==0.2.0
 ipython==6.2.1
 ipywidgets==6.0.1
 jedi==0.11.1
 jinja2==2.10
 jsonschema==2.6.0
-jupyter-client==5.2.2
+jupyter-client==5.2.3
 jupyter-console==5.2.0
 jupyter-core==4.4.0
 jupyter==1.0.0
@@ -19,23 +20,23 @@ markupsafe==1.0
 mistune==0.8.3
 nbconvert==5.3.1
 nbformat==4.4.0
-notebook==5.4.0
+notebook==5.4.1
 pandocfilters==1.4.2
 parso==0.1.1
-pexpect==4.3.1
+pexpect==4.4.0
 pickleshare==0.7.4
 prompt-toolkit==1.0.15
 ptyprocess==0.5.2
 pygments==2.2.0
-python-dateutil==2.6.1
-pyzmq==16.0.4
+python-dateutil==2.7.2
+pyzmq==17.0.0
 qtconsole==4.3.1
-send2trash==1.4.2
+send2trash==1.5.0
 simplegeneric==0.8.1
 six==1.11.0
 terminado==0.8.1
 testpath==0.3.1
-tornado==4.5.3
+tornado==5.0.1
 traitlets==4.3.2
 wcwidth==0.1.7
 webencodings==0.5.1
diff --git a/requirements-sqlalchemy.txt b/requirements-sqlalchemy.txt
index 21287e7..0479ce6 100644
--- a/requirements-sqlalchemy.txt
+++ b/requirements-sqlalchemy.txt
@@ -1,25 +1,26 @@
 -e .[sqlalchemy]
+-r requirements.txt
 appdirs==1.4.3
 bonobo-sqlalchemy==0.6.0
 certifi==2018.1.18
 chardet==3.0.4
 colorama==0.3.9
-fs==2.0.18
+fs==2.0.20
 graphviz==0.8.2
 idna==2.6
 jinja2==2.10
 markupsafe==1.0
-mondrian==0.6.1
+mondrian==0.6.6
 packaging==16.8
-pbr==3.1.1
+pbr==4.0.0
 psutil==5.4.3
 pyparsing==2.2.0
-python-slugify==1.2.4
-pytz==2017.3
+python-slugify==1.2.5
+pytz==2018.3
 requests==2.18.4
 six==1.11.0
-sqlalchemy==1.2.2
+sqlalchemy==1.2.5
 stevedore==1.28.0
 unidecode==1.0.22
 urllib3==1.22
-whistle==1.0.0
+whistle==1.0.1
diff --git a/requirements.txt b/requirements.txt
index 15c7fcf..2d3492f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,21 +3,21 @@ appdirs==1.4.3
 certifi==2018.1.18
 chardet==3.0.4
 colorama==0.3.9
-fs==2.0.18
+fs==2.0.20
 graphviz==0.8.2
 idna==2.6
 jinja2==2.10
 markupsafe==1.0
-mondrian==0.6.1
-packaging==16.8
-pbr==3.1.1
+mondrian==0.6.6
+packaging==17.1
+pbr==4.0.0
 psutil==5.4.3
 pyparsing==2.2.0
-python-slugify==1.2.4
-pytz==2017.3
+python-slugify==1.2.5
+pytz==2018.3
 requests==2.18.4
 six==1.11.0
 stevedore==1.28.0
 unidecode==1.0.22
 urllib3==1.22
-whistle==1.0.0
+whistle==1.0.1
diff --git a/setup.py b/setup.py
index b642900..37a6c92 100644
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,6 @@
-# This file is autogenerated by medikit code generator.
-# All changes will be overwritten.
+# Generated by Medikit 0.5.19 on 2018-03-29.
+# All changes will be overriden.
+# Edit Projectfile and run “make update” (or “medikit update”) to regenerate.
 
 from setuptools import setup, find_packages
 from codecs import open
@@ -59,14 +60,13 @@ setup(
     packages=find_packages(exclude=['ez_setup', 'example', 'test']),
     include_package_data=True,
     install_requires=[
-        'fs (~= 2.0)', 'graphviz (>= 0.8, < 0.9)', 'jinja2 (~= 2.9)', 'mondrian (~= 0.6)', 'packaging (~= 16.0)',
+        'fs (~= 2.0)', 'graphviz (>= 0.8, < 0.9)', 'jinja2 (~= 2.9)', 'mondrian (~= 0.6)', 'packaging (~= 17.0)',
         'psutil (~= 5.4)', 'python-slugify (~= 1.2.0)', 'requests (~= 2.0)', 'stevedore (~= 1.27)', 'whistle (~= 1.0)'
     ],
     extras_require={
         'dev': [
             'cookiecutter (>= 1.5, < 1.6)', 'coverage (~= 4.4)', 'pytest (~= 3.4)', 'pytest-cov (~= 2.5)',
-            'pytest-sugar (~= 0.9.1)', 'pytest-timeout (>= 1, < 2)', 'sphinx (>= 1.6, < 2.0)',
-            'sphinx-sitemap (>= 0.2, < 0.3)', 'yapf'
+            'pytest-timeout (>= 1, < 2)', 'sphinx (~= 1.7)', 'sphinx-sitemap (>= 0.2, < 0.3)', 'yapf'
         ],
         'docker': ['bonobo-docker (~= 0.6.0a1)'],
         'jupyter': ['ipywidgets (~= 6.0)', 'jupyter (~= 1.0)'],