diff --git a/g/Graphviz/Graphviz-2.44.1-GCCcore-9.3.0-Java-11-Python-3.8.2.eb b/g/Graphviz/Graphviz-2.44.1-GCCcore-9.3.0-Java-11-Python-3.8.2.eb
new file mode 100644
index 00000000..ac21ce69
--- /dev/null
+++ b/g/Graphviz/Graphviz-2.44.1-GCCcore-9.3.0-Java-11-Python-3.8.2.eb
@@ -0,0 +1,91 @@
+easyblock = 'ConfigureMake'
+
+name = 'Graphviz'
+version = '2.44.1'
+versionsuffix = '-Java-%(javaver)s-Python-%(pyver)s'
+local_pyver_major = '3'
+
+homepage = 'https://www.graphviz.org/'
+description = """Graphviz is open source graph visualization software. Graph visualization
+ is a way of representing structural information as diagrams of
+ abstract graphs and networks. It has important applications in networking,
+ bioinformatics,  software engineering, database and web design, machine learning,
+ and in visual interfaces for other technical domains."""
+
+toolchain = {'name': 'GCCcore', 'version': '9.3.0'}
+toolchainopts = {'cstd': 'c++11'}
+
+source_urls = ['https://gitlab.com/graphviz/graphviz/-/archive/%(version)s']
+sources = [SOURCELOWER_TAR_GZ]
+patches = ['Graphviz-2.42.2_skip-install-data-hook.patch']
+checksums = [
+    '3aac783a15341c2808141cc38ead408bf3d6ad203e0ed3946c9df595b760edda',  # graphviz-2.44.1.tar.gz
+    '3d06544c435a6255f6a8f3b36df3102060667b50ffd72e4942bbe546b9363859',  # Graphviz-2.42.2_skip-install-data-hook.patch
+]
+
+builddependencies = [
+    ('Autotools', '20180311'),
+    ('binutils', '2.34'),
+    ('Bison', '3.5.3'),
+    ('flex', '2.6.4'),
+    ('SWIG', '4.0.1'),
+    ('pkg-config', '0.29.2'),
+]
+
+dependencies = [
+    ('Java', '11', '', True),
+    ('Python', '3.8.2'),
+    ('FriBidi', '1.0.9'),
+    ('Gdk-Pixbuf', '2.40.0'),
+    ('Ghostscript', '9.52'),
+    ('GTS', '0.7.6'),
+    ('libgd', '2.3.0'),
+    ('Pango', '1.44.7'),
+    ('Perl', '5.30.2'),
+    ('Qt5', '5.14.1'),
+    ('Tcl', '8.6.10'),
+    ('zlib', '1.2.11'),
+]
+
+preconfigopts = './autogen.sh NOCONFIG && '
+
+configopts = '--enable-python%s=yes ' % local_pyver_major
+configopts += '--enable-guile=no --enable-lua=no --enable-ocaml=no '
+configopts += '--enable-r=no --enable-ruby=no --enable-php=no '
+# Use ltdl from libtool in EB
+configopts += '--enable-ltdl --without-included-ltdl --disable-ltdl-install '
+configopts += '--with-ltdl-include=$EBROOTLIBTOOL/include --with-ltdl-lib=$EBROOTLIBTOOL/lib '
+# Override the hardcoded paths to Java libraries
+configopts += '--with-javaincludedir=$JAVA_HOME/include --with-javaincludedir=$JAVA_HOME/include/linux '
+configopts += '--with-javalibdir=$JAVA_HOME/lib'
+
+prebuildopts = 'qmake -o cmd/gvedit/qMakefile cmd/gvedit/gvedit.pro && '
+
+postinstallcmds = ['%(installdir)s/bin/dot -c']  # Writes plugin configuration
+
+sanity_check_paths = {
+    'files': ['bin/%s' % x for x in ['acyclic', 'bcomps', 'ccomps', 'cluster', 'diffimg', 'dijkstra', 'dot',
+                                     'dot_builtins', 'dotty', 'edgepaint', 'gc', 'gml2gv', 'graphml2gv', 'gv2gml',
+                                     'gvcolor', 'gvedit', 'gvgen', 'gvmap', 'gvmap.sh', 'gvpack', 'gvpr', 'gxl2gv',
+                                     'lefty', 'lneato', 'mm2gv', 'nop', 'prune', 'sccmap', 'tred', 'unflatten',
+                                     'vimdot']] +
+             ['lib/%s.%s' % (x, SHLIB_EXT) for x in ['libcdt', 'libcgraph', 'libgvc', 'libgvpr', 'liblab_gamut',
+                                                     'libpathplan', 'libxdot']],
+    'dirs': ['include', 'lib/graphviz', 'lib/graphviz/java', 'lib/graphviz/python%s' % local_pyver_major,
+             'lib/pkgconfig', 'share']
+}
+
+sanity_check_commands = [
+    ("test ! -d $EBROOTTCL/lib/*/graphviz", ''),
+    ("test ! -d $EBROOTTCL/lib64/*/graphviz", ''),
+    ('python', '-c "import gv"'),
+]
+
+modextrapaths = {
+    'CLASSPATH': 'lib/graphviz/java',
+    'LD_LIBRARY_PATH': 'lib/graphviz/java',
+    'PYTHONPATH': 'lib/graphviz/python%s' % local_pyver_major,
+    'TCLLIBPATH': 'lib/graphviz/tcl',
+}
+
+moduleclass = 'vis'
diff --git a/g/Graphviz/Graphviz-2.44.1-GCCcore-9.3.0-Java-11.eb b/g/Graphviz/Graphviz-2.44.1-GCCcore-9.3.0-Java-11.eb
new file mode 100644
index 00000000..5dd09eaa
--- /dev/null
+++ b/g/Graphviz/Graphviz-2.44.1-GCCcore-9.3.0-Java-11.eb
@@ -0,0 +1,89 @@
+# IT4Innovations 2021
+# LK
+
+easyblock = 'ConfigureMake'
+
+name = 'Graphviz'
+version = '2.44.1'
+versionsuffix = '-Java-%(javaver)s'
+
+homepage = 'https://www.graphviz.org/'
+description = """Graphviz is open source graph visualization software. Graph visualization
+ is a way of representing structural information as diagrams of
+ abstract graphs and networks. It has important applications in networking,
+ bioinformatics,  software engineering, database and web design, machine learning,
+ and in visual interfaces for other technical domains."""
+
+toolchain = {'name': 'GCCcore', 'version': '9.3.0'}
+toolchainopts = {'cstd': 'c++11'}
+
+source_urls = ['https://gitlab.com/graphviz/graphviz/-/archive/%(version)s']
+sources = [SOURCELOWER_TAR_GZ]
+patches = ['Graphviz-2.42.2_skip-install-data-hook.patch']
+checksums = [
+    '3aac783a15341c2808141cc38ead408bf3d6ad203e0ed3946c9df595b760edda',  # graphviz-2.44.1.tar.gz
+    '3d06544c435a6255f6a8f3b36df3102060667b50ffd72e4942bbe546b9363859',  # Graphviz-2.42.2_skip-install-data-hook.patch
+]
+
+builddependencies = [
+    ('Autotools', '20180311'),
+    ('binutils', '2.34'),
+    ('Bison', '3.5.3'),
+    ('flex', '2.6.4'),
+    ('SWIG', '4.0.1'),
+    ('pkg-config', '0.29.2'),
+]
+
+dependencies = [
+    ('Java', '11', '', True),
+    ('FriBidi', '1.0.9'),
+    ('Gdk-Pixbuf', '2.40.0'),
+    ('Ghostscript', '9.52'),
+    ('GTS', '0.7.6'),
+    ('libgd', '2.3.0'),
+    ('Pango', '1.44.7'),
+    ('Perl', '5.30.2'),
+    ('Qt5', '5.13.1', '', True),
+    ('Tcl', '8.6.10'),
+    ('zlib', '1.2.11'),
+]
+
+preconfigopts = './autogen.sh NOCONFIG && '
+
+configopts = '--enable-python=no '
+configopts += '--enable-guile=no --enable-lua=no --enable-ocaml=no '
+configopts += '--enable-r=no --enable-ruby=no --enable-php=no '
+# Use ltdl from libtool in EB
+configopts += '--enable-ltdl --without-included-ltdl --disable-ltdl-install '
+configopts += '--with-ltdl-include=$EBROOTLIBTOOL/include --with-ltdl-lib=$EBROOTLIBTOOL/lib '
+# Override the hardcoded paths to Java libraries
+configopts += '--with-javaincludedir=$JAVA_HOME/include --with-javaincludedir=$JAVA_HOME/include/linux '
+configopts += '--with-javalibdir=$JAVA_HOME/lib'
+
+prebuildopts = 'qmake -o cmd/gvedit/qMakefile cmd/gvedit/gvedit.pro && '
+
+postinstallcmds = ['%(installdir)s/bin/dot -c']  # Writes plugin configuration
+
+sanity_check_paths = {
+    'files': ['bin/%s' % x for x in ['acyclic', 'bcomps', 'ccomps', 'cluster', 'diffimg', 'dijkstra', 'dot',
+                                     'dot_builtins', 'dotty', 'edgepaint', 'gc', 'gml2gv', 'graphml2gv', 'gv2gml',
+                                     'gvcolor', 'gvedit', 'gvgen', 'gvmap', 'gvmap.sh', 'gvpack', 'gvpr', 'gxl2gv',
+                                     'lefty', 'lneato', 'mm2gv', 'nop', 'prune', 'sccmap', 'tred', 'unflatten',
+                                     'vimdot']] +
+             ['lib/%s.%s' % (x, SHLIB_EXT) for x in ['libcdt', 'libcgraph', 'libgvc', 'libgvpr', 'liblab_gamut',
+                                                     'libpathplan', 'libxdot']],
+    'dirs': ['include', 'lib/graphviz', 'lib/graphviz/java', 'lib/pkgconfig', 'share']
+}
+
+sanity_check_commands = [
+    ("test ! -d $EBROOTTCL/lib/*/graphviz", ''),
+    ("test ! -d $EBROOTTCL/lib64/*/graphviz", ''),
+]
+
+modextrapaths = {
+    'CLASSPATH': 'lib/graphviz/java',
+    'LD_LIBRARY_PATH': 'lib/graphviz/java',
+    'TCLLIBPATH': 'lib/graphviz/tcl',
+}
+
+moduleclass = 'vis'
diff --git a/h/h5py/h5py-2.9.0-GCC-9.3.0-Python-3.8.6.eb b/h/h5py/h5py-2.9.0-GCC-9.3.0-Python-3.8.6.eb
new file mode 100644
index 00000000..78067164
--- /dev/null
+++ b/h/h5py/h5py-2.9.0-GCC-9.3.0-Python-3.8.6.eb
@@ -0,0 +1,25 @@
+# IT4Innovations 2021
+# LK
+
+easyblock = 'PythonPackage'
+
+name = 'h5py'
+version = '2.9.0'
+
+homepage = 'https://github.com/jupyter/testpath'
+description = """Test utilities for code working with files and commands"""
+
+toolchain = {'name': 'GCC', 'version': '9.3.0'}
+
+source_urls = [PYPI_SOURCE]
+sources = [SOURCE_TAR_GZ]
+
+dependencies = [
+    ('HDF5', '1.10.6', '', ('intel', '2020a')),
+    ('Python', '3.8.6'),
+    ('mpi4py', '3.0.1', '-Python-3.8.6',('intel', '2020a')),
+]
+
+sanity_check_paths = {'files': [], 'dirs': [
+    'lib/python3.8/site-packages/%(name)s-%(version)s-py3.8-linux-x86_64.egg'], }
+moduleclass = 'python'
diff --git a/h/h5py/h5py-3.1.0-intel-2020a-Python-3.8.6.eb b/h/h5py/h5py-3.1.0-intel-2020a-Python-3.8.6.eb
new file mode 100644
index 00000000..55942a22
--- /dev/null
+++ b/h/h5py/h5py-3.1.0-intel-2020a-Python-3.8.6.eb
@@ -0,0 +1,36 @@
+# IT4Innovations 2021
+# LK
+
+easyblock = 'PythonPackage'
+
+name = 'h5py'
+version = '3.1.0'
+versionsuffix = '-Python-%(pyver)s'
+
+homepage = 'https://www.h5py.org/'
+description = """HDF5 for Python (h5py) is a general-purpose Python interface to the Hierarchical Data Format library,
+ version 5. HDF5 is a versatile, mature scientific software library designed for the fast, flexible storage of enormous
+ amounts of data."""
+
+toolchain = {'name': 'intel', 'version': '2020a'}
+toolchainopts = {'usempi': True}
+
+source_urls = [PYPI_SOURCE]
+sources = [SOURCE_TAR_GZ]
+#patches = ['h5py-%(version)s_avoid-mpi-init.patch']
+
+builddependencies = [('pkgconfig', '1.5.1', versionsuffix)]
+
+dependencies = [
+    ('Python', '3.8.6'),
+    ('SciPy-bundle', '2020.03', versionsuffix),
+    ('HDF5', '1.10.6', '', ('iimpi', '2020a')),
+]
+
+use_pip = False
+download_dep_fail = True
+
+# to really use mpi enabled hdf5 we now seem to need a configure step, which is the reason we can't use pip
+#prebuildopts = 'python setup.py configure --mpi --hdf5=$EBROOTHDF5 && '
+
+moduleclass = 'data'
diff --git a/m/mpi4py/mpi4py-3.0.1-intel-2020a-Python-3.8.6.eb b/m/mpi4py/mpi4py-3.0.1-intel-2020a-Python-3.8.6.eb
new file mode 100644
index 00000000..d0c05142
--- /dev/null
+++ b/m/mpi4py/mpi4py-3.0.1-intel-2020a-Python-3.8.6.eb
@@ -0,0 +1,28 @@
+# IT4Innovations 2021
+# LK
+
+easyblock = 'PythonPackage'
+
+name = 'mpi4py'
+version = '3.0.1'
+versionsuffix = '-Python-3.8.6'
+
+homepage = 'http://mpi4py.scipy.org/docs'
+description = """MPI for Python (mpi4py) provides bindings of the Message Passing Interface (MPI) standard for
+ the Python programming language, allowing any Python program to exploit multiple processors."""
+
+toolchain = {'name': 'intel', 'version': '2020a'}
+
+source_urls = [PYPI_SOURCE]
+sources = [SOURCE_TAR_GZ]
+
+dependencies = [
+    ('Python', '3.8.6'),
+]
+
+sanity_check_paths = {
+    'files': [],
+    'dirs': ['lib/python3.8/site-packages/mpi4py'],
+}
+
+moduleclass = 'python'
diff --git a/p/PyQt5/PyQt5-5.13.1-GCC-9.3.0-Python-3.8.6.eb b/p/PyQt5/PyQt5-5.13.1-GCC-9.3.0-Python-3.8.6.eb
new file mode 100644
index 00000000..863766f9
--- /dev/null
+++ b/p/PyQt5/PyQt5-5.13.1-GCC-9.3.0-Python-3.8.6.eb
@@ -0,0 +1,114 @@
+# IT4Innoations 2021
+# LK
+
+easyblock = 'Bundle'
+
+name = 'PyQt5'
+version = '5.13.1'
+
+homepage = 'https://www.riverbankcomputing.co.uk/software/pyqt'
+description = """PyQt5 is a set of Python bindings for v5 of the Qt application framework from The Qt Company.
+This bundle includes PyQtWebEngine, a set of Python bindings for The Qt Company’s Qt WebEngine framework."""
+
+toolchain = {'name': 'GCC', 'version': '9.3.0'}
+toolchainopts = {'cstd': 'c++11'}
+
+dependencies = [
+    ('Qt5', '5.13.1', '', True),
+    ('Python', '3.8.6'),
+]
+
+default_easyblock = 'ConfigureMakePythonPackage'
+
+local_pylibdir = '%(installdir)s/lib/python3.8/site-packages'
+
+local_sip_configopts = " ".join([
+    "configure.py",
+    "--bindir %(installdir)s/bin",
+    "--incdir %(installdir)s/include",
+    "--destdir %s" % local_pylibdir,
+    "--sipdir=%(installdir)s/share/sip",
+    # required for PyQt5, cfr. https://www.riverbankcomputing.com/static/Docs/PyQt5/installation.html#downloading-sip
+    "--sip-module PyQt5.sip",
+    "--no-dist-info",
+    "--no-stubs",
+])
+
+local_pyqt5_configopts = " ".join([
+    "configure.py",
+    "--confirm-license --verbose --no-python-dbus",
+    "--bindir=%(installdir)s/bin",
+    "--destdir=%s" % local_pylibdir,
+    "--sip=%(installdir)s/bin/sip",
+    "--sip-incdir %(installdir)s/include/",
+    "--sipdir=%(installdir)s/share/sip/PyQt5",
+    "--designer-plugindir=%(installdir)s/plugins/designer",
+    "--qml-plugindir=%(installdir)s/plugins/PyQt5",
+    "--qsci-api-destdir=%(installdir)s/qsci",
+    "--no-dist-info",
+    "--no-stubs",
+])
+
+local_pyqtweb_configopts = " ".join([
+    "configure.py",
+    "--verbose",
+    "--destdir=%s/PyQt5" % local_pylibdir,
+    "--apidir=%(installdir)s/qsci",
+    "--pyqt-sipdir=%(builddir)s/PyQt5_gpl-%(version)s/sip",
+    "--no-dist-info",
+    "--no-stubs",
+])
+
+local_setup_env = "export PATH=%(installdir)s/bin:$PATH && "
+local_setup_env += "export PYTHONPATH=%(installdir)s/lib/python3.8/site-packages:$PYTHONPATH && "
+local_sipver = '4.19.19'
+components = [
+    ('SIP', local_sipver, {
+        'source_urls': ['https://www.riverbankcomputing.com/static/Downloads/sip/%s' % local_sipver],
+        'sources': [SOURCELOWER_TAR_GZ],
+        'checksums': ['5436b61a78f48c7e8078e93a6b59453ad33780f80c644e5f3af39f94be1ede44'],
+        'start_dir': 'sip-%s' % local_sipver,
+        'configopts': local_sip_configopts,
+        'options': {'modulename': 'PyQt5.sip'},
+    }),
+    (name, version, {
+        'source_urls': ['https://www.riverbankcomputing.com/static/Downloads/%(name)s/%(version)s/'],
+        'sources': ['%(name)s_gpl-%(version)s.tar.gz'],
+        'checksums': ['54b7f456341b89eeb3930e786837762ea67f235e886512496c4152ebe106d4af'],
+        'start_dir': '%(name)s_gpl-%(version)s',
+        'preconfigopts': local_setup_env,
+        'configopts': local_pyqt5_configopts,
+        'preinstallopts': local_setup_env,
+        'options': {'modulename': 'PyQt5.QtCore'},
+    }),
+    ('PyQtWebEngine', version, {
+        'source_urls': ['https://www.riverbankcomputing.com/static/Downloads/%(name)s/%(version)s/'],
+        'sources': ['%(name)s_gpl-%(version)s.tar.gz'],
+        'checksums': ['8d8c1262005d8465653a848bf67327fb338e0d3c2d26090a6f7eb071dbb42092'],
+        'start_dir': '%(name)s_gpl-%(version)s',
+        'preconfigopts': local_setup_env,
+        'configopts': local_pyqtweb_configopts,
+        'options': {'modulename': 'PyQt5.QtWebEngine'},
+    }),
+]
+
+sanity_check_paths = {
+    'files': ['bin/sip', 'include/sip.h'] + ['lib/python3.8/site-packages/%s' % x for x in (
+        'sipconfig.py',
+        'sipdistutils.py',
+        '%%(name)s/sip.%s' % SHLIB_EXT,
+        '%%(name)s/QtCore.%s' % SHLIB_EXT,
+        '%%(name)s/QtWebEngine.%s' % SHLIB_EXT,
+    )],
+    'dirs': ['include', 'plugins', 'share/sip/PyQt5']
+}
+
+modextrapaths = {
+    'PYTHONPATH': 'lib/python3.8/site-packages',
+    'QT_INSTALL_DATA': 'qsci',
+    'QT_PLUGIN_PATH': 'plugins',
+}
+
+skipsteps = ['sanitycheck']
+
+moduleclass = 'vis'
diff --git a/p/PyQt5/PyQt5-5.14.1-GCC-9.3.0-Python-3.8.6.eb b/p/PyQt5/PyQt5-5.14.1-GCC-9.3.0-Python-3.8.6.eb
new file mode 100644
index 00000000..fd2d1ded
--- /dev/null
+++ b/p/PyQt5/PyQt5-5.14.1-GCC-9.3.0-Python-3.8.6.eb
@@ -0,0 +1,114 @@
+# IT4Innoations 2021
+# LK
+
+easyblock = 'Bundle'
+
+name = 'PyQt5'
+version = '5.14.1'
+
+homepage = 'https://www.riverbankcomputing.co.uk/software/pyqt'
+description = """PyQt5 is a set of Python bindings for v5 of the Qt application framework from The Qt Company.
+This bundle includes PyQtWebEngine, a set of Python bindings for The Qt Company’s Qt WebEngine framework."""
+
+toolchain = {'name': 'GCC', 'version': '9.3.0'}
+toolchainopts = {'cstd': 'c++11'}
+
+dependencies = [
+    ('Qt5', '5.14.1'),
+    ('Python', '3.8.6'),
+]
+
+default_easyblock = 'ConfigureMakePythonPackage'
+
+local_pylibdir = '%(installdir)s/lib/python3.8/site-packages'
+
+local_sip_configopts = " ".join([
+    "configure.py",
+    "--bindir %(installdir)s/bin",
+    "--incdir %(installdir)s/include",
+    "--destdir %s" % local_pylibdir,
+    "--sipdir=%(installdir)s/share/sip",
+    # required for PyQt5, cfr. https://www.riverbankcomputing.com/static/Docs/PyQt5/installation.html#downloading-sip
+    "--sip-module PyQt5.sip",
+    "--no-dist-info",
+    "--no-stubs",
+])
+
+local_pyqt5_configopts = " ".join([
+    "configure.py",
+    "--confirm-license --verbose --no-python-dbus",
+    "--bindir=%(installdir)s/bin",
+    "--destdir=%s" % local_pylibdir,
+    "--sip=%(installdir)s/bin/sip",
+    "--sip-incdir %(installdir)s/include/",
+    "--sipdir=%(installdir)s/share/sip/PyQt5",
+    "--designer-plugindir=%(installdir)s/plugins/designer",
+    "--qml-plugindir=%(installdir)s/plugins/PyQt5",
+    "--qsci-api-destdir=%(installdir)s/qsci",
+    "--no-dist-info",
+    "--no-stubs",
+])
+
+local_pyqtweb_configopts = " ".join([
+    "configure.py",
+    "--verbose",
+    "--destdir=%s/PyQt5" % local_pylibdir,
+    "--apidir=%(installdir)s/qsci",
+    "--pyqt-sipdir=%(builddir)s/PyQt5_gpl-%(version)s/sip",
+    "--no-dist-info",
+    "--no-stubs",
+])
+
+local_setup_env = "export PATH=%(installdir)s/bin:$PATH && "
+local_setup_env += "export PYTHONPATH=%(installdir)s/lib/python3.8/site-packages:$PYTHONPATH && "
+local_sipver = '4.19.19'
+components = [
+    ('SIP', local_sipver, {
+        'source_urls': ['https://www.riverbankcomputing.com/static/Downloads/sip/%s' % local_sipver],
+        'sources': [SOURCELOWER_TAR_GZ],
+        'checksums': ['5436b61a78f48c7e8078e93a6b59453ad33780f80c644e5f3af39f94be1ede44'],
+        'start_dir': 'sip-%s' % local_sipver,
+        'configopts': local_sip_configopts,
+        'options': {'modulename': 'PyQt5.sip'},
+    }),
+    (name, version, {
+        'source_urls': ['https://www.riverbankcomputing.com/static/Downloads/%(name)s/%(version)s/'],
+        'sources': ['%(name)s_gpl-%(version)s.tar.gz'],
+        'checksums': ['54b7f456341b89eeb3930e786837762ea67f235e886512496c4152ebe106d4af'],
+        'start_dir': '%(name)s_gpl-%(version)s',
+        'preconfigopts': local_setup_env,
+        'configopts': local_pyqt5_configopts,
+        'preinstallopts': local_setup_env,
+        'options': {'modulename': 'PyQt5.QtCore'},
+    }),
+    ('PyQtWebEngine', version, {
+        'source_urls': ['https://www.riverbankcomputing.com/static/Downloads/%(name)s/%(version)s/'],
+        'sources': ['%(name)s_gpl-%(version)s.tar.gz'],
+        'checksums': ['8d8c1262005d8465653a848bf67327fb338e0d3c2d26090a6f7eb071dbb42092'],
+        'start_dir': '%(name)s_gpl-%(version)s',
+        'preconfigopts': local_setup_env,
+        'configopts': local_pyqtweb_configopts,
+        'options': {'modulename': 'PyQt5.QtWebEngine'},
+    }),
+]
+
+sanity_check_paths = {
+    'files': ['bin/sip', 'include/sip.h'] + ['lib/python3.8/site-packages/%s' % x for x in (
+        'sipconfig.py',
+        'sipdistutils.py',
+        '%%(name)s/sip.%s' % SHLIB_EXT,
+        '%%(name)s/QtCore.%s' % SHLIB_EXT,
+        '%%(name)s/QtWebEngine.%s' % SHLIB_EXT,
+    )],
+    'dirs': ['include', 'plugins', 'share/sip/PyQt5']
+}
+
+modextrapaths = {
+    'PYTHONPATH': 'lib/python3.8/site-packages',
+    'QT_INSTALL_DATA': 'qsci',
+    'QT_PLUGIN_PATH': 'plugins',
+}
+
+skipsteps = ['sanitycheck']
+
+moduleclass = 'vis'
diff --git a/p/PyQt5/PyQt5-5.15.1-GCCcore-9.3.0-Python-3.8.2.eb b/p/PyQt5/PyQt5-5.15.1-GCCcore-9.3.0-Python-3.8.2.eb
new file mode 100644
index 00000000..48ee07be
--- /dev/null
+++ b/p/PyQt5/PyQt5-5.15.1-GCCcore-9.3.0-Python-3.8.2.eb
@@ -0,0 +1,96 @@
+# IT4Innovations 2021
+# LK
+
+easyblock = 'Bundle'
+
+name = 'PyQt5'
+version = '5.15.1'
+versionsuffix = '-Python-%(pyver)s'
+
+homepage = 'https://www.riverbankcomputing.com/software/pyqt'
+description = """PyQt5 is a set of Python bindings for v5 of the Qt application framework from The Qt Company.
+This bundle includes PyQtWebEngine, a set of Python bindings for The Qt Company’s Qt WebEngine framework."""
+
+toolchain = {'name': 'GCCcore', 'version': '9.3.0'}
+toolchainopts = {'cstd': 'c++11'}
+
+builddependencies = [('binutils', '2.34')]
+dependencies = [
+    ('Python', '3.8.2'),
+    ('Qt5', '5.14.1'),
+]
+
+default_easyblock = 'PythonPackage'
+
+local_pylibdir = '%(installdir)s/lib/python%(pyshortver)s/site-packages'
+
+local_pyqt5_sip_install = "sip-install --verbose --target-dir " + local_pylibdir + " "
+local_pyqt5_sip_install += "--confirm-license --no-designer-plugin --no-qml-plugin --no-tools"
+
+local_pyqtweb_configopts = "configure.py --verbose --destdir=%s/PyQt5 " % local_pylibdir
+local_pyqtweb_configopts += "--apidir=%(installdir)s/qsci --pyqt-sipdir=%(builddir)s/PyQt5-%(version)s/sip "
+local_pyqtweb_configopts += "--no-stubs --no-dist-info"
+
+local_setup_env = "export PATH=%(installdir)s/bin:$PATH && "
+local_setup_env += "export PYTHONPATH=%(installdir)s/lib/python%(pyshortver)s/site-packages:$PYTHONPATH && "
+local_sipver = '5.4.0'
+components = [
+    ('SIP', local_sipver, {
+        'source_urls': [PYPI_SOURCE],
+        'sources': [SOURCELOWER_TAR_GZ],
+        'checksums': ['4282ab45948674f5ef74278a8e70d1302f65c95b519a0af19409002f5715d641'],
+        'start_dir': 'sip-%s' % local_sipver,
+        'use_pip': True,
+        'options': {'modulename': 'PyQt5.sip'},
+    }),
+    ('PyQt-builder', '1.5.0', {
+        'source_urls': [PYPI_SOURCE],
+        'sources': [SOURCE_TAR_GZ],
+        'checksums': ['11bbe26e8e3d5ffec6d2ef2f50596b1670eb2d8b49aee0f859821922d8282841'],
+        'start_dir': 'PyQt-builder-%(version)s',
+        'use_pip': True,
+    }),
+    ('PyQt5_sip', '12.8.1', {
+        'source_urls': [PYPI_SOURCE],
+        'sources': [SOURCE_TAR_GZ],
+        'checksums': ['30e944db9abee9cc757aea16906d4198129558533eb7fadbe48c5da2bd18e0bd'],
+        'start_dir': 'PyQt5_sip-%(version)s',
+        'use_pip': True,
+    }),
+    (name, version, {
+        'source_urls': [PYPI_SOURCE],
+        'sources': [SOURCE_TAR_GZ],
+        'checksums': ['d9a76b850246d08da9863189ecb98f6c2aa9b4d97a3e85e29330a264aed0f9a1'],
+        'easyblock': 'Binary',
+        'start_dir': '%(name)s-%(version)s',
+        'skipsteps': ['configure', 'build'],
+        'install_cmd': local_setup_env + local_pyqt5_sip_install,
+    }),
+    ('PyQtWebEngine', version, {
+        'source_urls': [PYPI_SOURCE],
+        'sources': [SOURCE_TAR_GZ],
+        'checksums': ['f0ca7915ee206ba5d703168c6ca40b0aad62c67360328fae4af5359cdbcee439'],
+        'easyblock': 'ConfigureMakePythonPackage',
+        'start_dir': '%(name)s-%(version)s',
+        'preconfigopts': local_setup_env,
+        'configopts': local_pyqtweb_configopts,
+        'options': {'modulename': 'PyQt5.QtWebEngine'},
+    }),
+]
+
+sanity_check_paths = {
+    'files': ['bin/pyqt-bundle', 'bin/sip-build', 'bin/sip-install', 'bin/sip5'],
+    'dirs': ['lib/python%(pyshortver)s/site-packages'],
+}
+
+sanity_check_commands = [
+    "python -c 'import PyQt5.QtCore'",
+    "sip5 --help",
+]
+
+modextrapaths = {
+    'PYTHONPATH': 'lib/python%(pyshortver)s/site-packages',
+    'QT_INSTALL_DATA': 'qsci',
+}
+
+moduleclass = 'vis'
diff --git a/p/PyQt5/PyQt5-5.15.1-GCCcore-9.3.0.eb b/p/PyQt5/PyQt5-5.15.1-GCCcore-9.3.0.eb
new file mode 100644
index 00000000..0577eda7
--- /dev/null
+++ b/p/PyQt5/PyQt5-5.15.1-GCCcore-9.3.0.eb
@@ -0,0 +1,95 @@
+# IT4Innovations 2021
+# LK
+
+easyblock = 'Bundle'
+
+name = 'PyQt5'
+version = '5.15.1'
+
+homepage = 'https://www.riverbankcomputing.com/software/pyqt'
+description = """PyQt5 is a set of Python bindings for v5 of the Qt application framework from The Qt Company.
+This bundle includes PyQtWebEngine, a set of Python bindings for The Qt Company’s Qt WebEngine framework."""
+
+toolchain = {'name': 'GCCcore', 'version': '9.3.0'}
+toolchainopts = {'cstd': 'c++11'}
+
+builddependencies = [('binutils', '2.34')]
+dependencies = [
+    ('Python', '3.8.6'),
+    ('Qt5', '5.14.1'),
+]
+
+default_easyblock = 'PythonPackage'
+
+local_pylibdir = '%(installdir)s/lib/python%(pyshortver)s/site-packages'
+
+local_pyqt5_sip_install = "sip-install --verbose --target-dir " + local_pylibdir + " "
+local_pyqt5_sip_install += "--confirm-license --no-designer-plugin --no-qml-plugin --no-tools"
+
+local_pyqtweb_configopts = "configure.py --verbose --destdir=%s/PyQt5 " % local_pylibdir
+local_pyqtweb_configopts += "--apidir=%(installdir)s/qsci --pyqt-sipdir=%(builddir)s/PyQt5-%(version)s/sip "
+local_pyqtweb_configopts += "--no-stubs --no-dist-info"
+
+local_setup_env = "export PATH=%(installdir)s/bin:$PATH && "
+local_setup_env += "export PYTHONPATH=%(installdir)s/lib/python%(pyshortver)s/site-packages:$PYTHONPATH && "
+local_sipver = '5.4.0'
+components = [
+    ('SIP', local_sipver, {
+        'source_urls': [PYPI_SOURCE],
+        'sources': [SOURCELOWER_TAR_GZ],
+        'checksums': ['4282ab45948674f5ef74278a8e70d1302f65c95b519a0af19409002f5715d641'],
+        'start_dir': 'sip-%s' % local_sipver,
+        'use_pip': True,
+        'options': {'modulename': 'PyQt5.sip'},
+    }),
+    ('PyQt-builder', '1.5.0', {
+        'source_urls': [PYPI_SOURCE],
+        'sources': [SOURCE_TAR_GZ],
+        'checksums': ['11bbe26e8e3d5ffec6d2ef2f50596b1670eb2d8b49aee0f859821922d8282841'],
+        'start_dir': 'PyQt-builder-%(version)s',
+        'use_pip': True,
+    }),
+    ('PyQt5_sip', '12.8.1', {
+        'source_urls': [PYPI_SOURCE],
+        'sources': [SOURCE_TAR_GZ],
+        'checksums': ['30e944db9abee9cc757aea16906d4198129558533eb7fadbe48c5da2bd18e0bd'],
+        'start_dir': 'PyQt5_sip-%(version)s',
+        'use_pip': True,
+    }),
+    (name, version, {
+        'source_urls': [PYPI_SOURCE],
+        'sources': [SOURCE_TAR_GZ],
+        'checksums': ['d9a76b850246d08da9863189ecb98f6c2aa9b4d97a3e85e29330a264aed0f9a1'],
+        'easyblock': 'Binary',
+        'start_dir': '%(name)s-%(version)s',
+        'skipsteps': ['configure', 'build'],
+        'install_cmd': local_setup_env + local_pyqt5_sip_install,
+    }),
+    ('PyQtWebEngine', version, {
+        'source_urls': [PYPI_SOURCE],
+        'sources': [SOURCE_TAR_GZ],
+        'checksums': ['f0ca7915ee206ba5d703168c6ca40b0aad62c67360328fae4af5359cdbcee439'],
+        'easyblock': 'ConfigureMakePythonPackage',
+        'start_dir': '%(name)s-%(version)s',
+        'preconfigopts': local_setup_env,
+        'configopts': local_pyqtweb_configopts,
+        'options': {'modulename': 'PyQt5.QtWebEngine'},
+    }),
+]
+
+sanity_check_paths = {
+    'files': ['bin/pyqt-bundle', 'bin/sip-build', 'bin/sip-install', 'bin/sip5'],
+    'dirs': ['lib/python%(pyshortver)s/site-packages'],
+}
+
+sanity_check_commands = [
+    "python -c 'import PyQt5.QtCore'",
+    "sip5 --help",
+]
+
+modextrapaths = {
+    'PYTHONPATH': 'lib/python%(pyshortver)s/site-packages',
+    'QT_INSTALL_DATA': 'qsci',
+}
+
+moduleclass = 'vis'
diff --git a/p/pkgconfig/pkgconfig-1.5.1-GCCcore-9.3.0-Python-3.8.6.eb b/p/pkgconfig/pkgconfig-1.5.1-GCCcore-9.3.0-Python-3.8.6.eb
new file mode 100644
index 00000000..6ee1c4f4
--- /dev/null
+++ b/p/pkgconfig/pkgconfig-1.5.1-GCCcore-9.3.0-Python-3.8.6.eb
@@ -0,0 +1,37 @@
+# IT4Innovations 2021
+# LK
+
+easyblock = 'PythonBundle'
+
+name = 'pkgconfig'
+version = '1.5.1'
+versionsuffix = '-Python-%(pyver)s'
+
+homepage = 'https://github.com/matze/pkgconfig'
+description = """pkgconfig is a Python module to interface with the pkg-config command line tool"""
+
+toolchain = {'name': 'GCCcore', 'version': '9.3.0'}
+
+builddependencies = [('binutils', '2.34')]
+
+dependencies = [
+    ('Python', '3.8.6'),
+    ('pkg-config', '0.29.2'),
+]
+
+# Due to poetry doing the actual build of pkgconfig we need use_pip=False
+use_pip = False
+
+exts_list = [
+    # Not updating this since it is basically a build dep
+    ('poetry', '0.12.17', {
+        'source_urls': ['https://pypi.python.org/packages/source/p/poetry/'],
+        'checksums': ['6e535de38df7e6ab46ff8d197f53632b071675287d1477efc7bf4a5c4c63bc3f'],
+    }),
+    (name, version, {
+        'source_urls': ['https://pypi.python.org/packages/source/p/pkgconfig/'],
+        'checksums': ['97bfe3d981bab675d5ea3ef259045d7919c93897db7d3b59d4e8593cba8d354f'],
+    }),
+]
+
+moduleclass = 'devel'
diff --git a/p/pybind11/pybind11-2.4.3-GCCcore-9.3.0-Python-3.8.6.eb b/p/pybind11/pybind11-2.4.3-GCCcore-9.3.0-Python-3.8.6.eb
new file mode 100644
index 00000000..8865ecf0
--- /dev/null
+++ b/p/pybind11/pybind11-2.4.3-GCCcore-9.3.0-Python-3.8.6.eb
@@ -0,0 +1,31 @@
+# IT4Innovations 2021
+# LK
+
+name = 'pybind11'
+version = '2.4.3'
+versionsuffix = '-Python-%(pyver)s'
+
+homepage = 'https://pybind11.readthedocs.io'
+description = """pybind11 is a lightweight header-only library that exposes C++ types in Python and vice versa,
+ mainly to create Python bindings of existing C++ code."""
+
+toolchain = {'name': 'GCCcore', 'version': '9.3.0'}
+
+source_urls = ['https://github.com/pybind/pybind11/archive/']
+sources = ['v%(version)s.tar.gz']
+patches = ['%(name)s-%(version)s-fix-get-include.patch']
+checksums = [
+    '1eed57bc6863190e35637290f97a20c81cfe4d9090ac0a24f3bbf08f265eb71d',  # v2.4.3.tar.gz
+    'b03550f05dcff97eeb3d7f4cd393b0584341ac7a310c89ee120f95e54fdc3125',  # pybind11-2.4.3-fix-get-include.patch
+]
+
+builddependencies = [
+    ('binutils', '2.34'),
+    ('CMake', '3.16.4'),
+    ('Eigen', '3.3.7'),
+]
+dependencies = [('Python', '3.8.6')]
+
+configopts = "-DPYTHON_EXECUTABLE=$EBROOTPYTHON/bin/python"
+
+moduleclass = 'lib'
diff --git a/s/SciPy-bundle/SciPy-bundle-2020.03-intel-2020a-Python-3.8.6.eb b/s/SciPy-bundle/SciPy-bundle-2020.03-intel-2020a-Python-3.8.6.eb
new file mode 100644
index 00000000..d912eb39
--- /dev/null
+++ b/s/SciPy-bundle/SciPy-bundle-2020.03-intel-2020a-Python-3.8.6.eb
@@ -0,0 +1,58 @@
+# IT4Innovations 2021
+# LK
+
+easyblock = 'PythonBundle'
+
+name = 'SciPy-bundle'
+version = '2020.03'
+versionsuffix = '-Python-3.8.6'
+
+homepage = 'https://python.org/'
+description = "Bundle of Python packages for scientific software"
+
+toolchain = {'name': 'intel', 'version': '2020a'}
+toolchainopts = {'pic': True, 'lowopt': True}
+
+dependencies = [
+    ('Python', '3.8.6'),
+    ('pybind11', '2.4.3', versionsuffix),  # required by scipy
+]
+
+use_pip = True
+
+exts_default_options = {'source_urls': [PYPI_SOURCE]}
+
+# order is important!
+exts_list = [
+    ('numpy', '1.18.3', {
+        'patches': ['numpy-1.18.2-mkl.patch'],
+        'source_tmpl': '%(name)s-%(version)s.zip',
+        'checksums': [
+            'e46e2384209c91996d5ec16744234d1c906ab79a701ce1a26155c9ec890b8dc8',  # numpy-1.18.2.zip
+            'ea25ad5c0148c1398d282f0424e642fb9815a1a80f4512659b018e2adc378bcf',  # numpy-1.18.2-mkl.patch
+        ],
+    }),
+    ('scipy', '1.4.1', {
+        'patches': ['scipy-1.4.1-fix-pthread.patch'],
+        'checksums': [
+            'dee1bbf3a6c8f73b6b218cb28eed8dd13347ea2f87d572ce19b289d6fd3fbc59',  # scipy-1.4.1.tar.gz
+            '4e2162a93caddce63a1aa2dfb6c181774a4f6615950e1d60c54bb4308fee3bb3',  # scipy-1.4.1-fix-pthread.patch
+        ],
+    }),
+    ('mpi4py', '3.0.3', {
+        'checksums': ['012d716c8b9ed1e513fcc4b18e5af16a8791f51e6d1716baccf988ad355c5a1f'],
+    }),
+    ('pandas', '1.0.3', {
+        'checksums': ['32f42e322fb903d0e189a4c10b75ba70d90958cc4f66a1781ed027f1a1d14586'],
+    }),
+    ('mpmath', '1.1.0', {
+        'checksums': ['fc17abe05fbab3382b61a123c398508183406fa132e0223874578e20946499f6'],
+    }),
+    ('deap', '1.3.1', {
+        'checksums': ['11f54493ceb54aae10dde676577ef59fc52d52f82729d5a12c90b0813c857a2f'],
+    }),
+]
+
+sanity_pip_check = True
+
+moduleclass = 'lang'