diff --git a/a/ANSYS/ANSYS-22.2-intel-2022a-test.eb b/a/ANSYS/ANSYS-22.2-intel-2022a-test.eb
new file mode 100644
index 00000000..1fc31552
--- /dev/null
+++ b/a/ANSYS/ANSYS-22.2-intel-2022a-test.eb
@@ -0,0 +1,29 @@
+# IT4Innovations 2023
+# JK LK
+
+name = 'ANSYS'
+version = '22.2'
+versionsuffix = '-test'
+
+homepage = 'http://www.ansys.com'
+description = """ANSYS simulation software enables organizations to confidently predict
+    how their products will operate in the real world. We believe that every product is
+    a promise of something greater. """
+
+toolchain = {'name': 'intel', 'version': '2022a'}
+
+# create a zip file from the 3 install iso files.
+# make sure all files of the iso's are in the same directory.
+sources = ['ANSYS-22.2.tar.gz']
+checksums = ['51bf1ef35347b00d61675911095c0d65c1571d8d30782c14e320ec545e9cf0a7']
+
+dependencies = [
+   ('libGLU', '9.0.2'),
+   ('libnsl', '2.0.0'),
+]
+
+import os
+license_server = os.getenv('EB_ANSYS_LICENSE_SERVER', '10.5.8.13')
+license_server_port = os.getenv('EB_ANSYS_LICENSE_SERVER_PORT', '2325:1055')
+
+moduleclass = 'tools'
diff --git a/a/awscli/awscli-1.27.75-GCCcore-12.2.0-Python-3.10.8.eb b/a/awscli/awscli-1.27.75-GCCcore-12.2.0-Python-3.10.8.eb
new file mode 100644
index 00000000..d4c72df9
--- /dev/null
+++ b/a/awscli/awscli-1.27.75-GCCcore-12.2.0-Python-3.10.8.eb
@@ -0,0 +1,59 @@
+# IT4Innovations
+# LK 2023
+
+easyblock = 'PythonBundle'
+
+name = 'awscli'
+version = '1.27.75'
+versionsuffix = '-Python-%(pyver)s'
+
+homepage = 'https://pypi.python.org/pypi/awscli'
+description = 'Universal Command Line Environment for AWS'
+
+toolchain = {'name': 'GCCcore', 'version': '12.2.0'}
+
+builddependencies = [
+    ('binutils', '2.39'),
+]
+
+dependencies = [
+    ('Python', '3.10.8'),
+    ('PyYAML', '5.4.1.1'),
+]
+
+use_pip = True
+
+exts_list = [
+    ('colorama', '0.4.4', {
+        'checksums': ['5941b2b48a20143d2267e95b1c2a7603ce057ee39fd88e7329b0c292aa16869b'],
+    }),
+    ('s3transfer', '0.6.0', {
+        'checksums': ['2ed07d3866f523cc561bf4a00fc5535827981b117dd7876f036b0c1aca42c947'],
+    }),
+    ('rsa', '4.7', {
+        'checksums': ['69805d6b69f56eb05b62daea3a7dbd7aa44324ad1306445e05da8060232d00f4'],
+    }),
+    ('docutils', '0.16', {
+        'checksums': ['c2de3a60e9e7d07be26b7f2b00ca0309c207e06c100f9cc2a94931fc75a478fc'],
+    }),
+    ('botocore', '1.29.75', {
+        'checksums': ['eef47ca90d02dbc92296208e24ac5e02bdf5cfa45f10d160fdc19612e141bce2'],
+    }),
+    ('jmespath', '1.0.1', {
+        'checksums': ['90261b206d6defd58fdd5e85f478bf633a2901798906be2ad389150c5c60edbe'],
+    }),
+    (name, version, {
+        'checksums': ['4ddceb061e6dbdc313cf2c9ff36e16324605f8a94c30fb334aef81a7a0766482'],
+    }),
+]
+
+sanity_pip_check = True
+
+sanity_check_commands = ["aws help"]
+
+sanity_check_paths = {
+    'files': ['bin/aws'],
+    'dirs': ['lib/python%(pyshortver)s/site-packages/'],
+}
+
+moduleclass = 'tools'
diff --git a/i/iompi/iompi-2020b-test.eb b/i/iompi/iompi-2020b-test.eb
new file mode 100644
index 00000000..b09aa5d8
--- /dev/null
+++ b/i/iompi/iompi-2020b-test.eb
@@ -0,0 +1,22 @@
+# IT4Innovations 2023
+# JK
+
+easyblock = "Toolchain"
+
+name = 'iompi'
+version = '2020b'
+versionsuffix = '-test'
+
+homepage = 'https://software.intel.com/en-us/intel-cluster-toolkit-compiler/'
+description = """Intel C/C++ and Fortran compilers, alongside Open MPI."""
+
+toolchain = SYSTEM
+
+local_compver = '2020.4.304'
+
+dependencies = [
+    ('iccifort', local_compver),
+    ('OpenMPI', '4.0.5', versionsuffix, ('iccifort', local_compver)),
+]
+
+moduleclass = 'toolchain'
diff --git a/l/libnsl/libnsl-1.3.0-GCCcore-10.3.0.eb b/l/libnsl/libnsl-1.3.0-GCCcore-10.3.0.eb
index fcacc1c5..b5d1aaa6 100644
--- a/l/libnsl/libnsl-1.3.0-GCCcore-10.3.0.eb
+++ b/l/libnsl/libnsl-1.3.0-GCCcore-10.3.0.eb
@@ -1,3 +1,6 @@
+# IT4Innovations 2023
+# JK
+
 easyblock = 'ConfigureMake'
 
 name = 'libnsl'
diff --git a/l/libnsl/libnsl-2.0.0-GCCcore-11.3.0.eb b/l/libnsl/libnsl-2.0.0-GCCcore-11.3.0.eb
new file mode 100644
index 00000000..dcd10f8d
--- /dev/null
+++ b/l/libnsl/libnsl-2.0.0-GCCcore-11.3.0.eb
@@ -0,0 +1,36 @@
+# IT4Innovations 2023
+# JK
+
+easyblock = 'ConfigureMake'
+
+name = 'libnsl'
+version = '2.0.0'
+
+homepage = 'https://github.com/thkukuk/libnsl'
+description = """The libnsl package contains the public client interface for NIS(YP)."""
+
+toolchain = {'name': 'GCCcore', 'version': '11.3.0'}
+
+source_urls = ['https://github.com/thkukuk/%(name)s/releases/download/v%(version)s/']
+sources = [SOURCE_TAR_XZ]
+checksums = ['2da075ef1893ebdfc5f074f83ac811873dc06fd5c62bc9a4729fd2e27a40341a']
+
+builddependencies = [
+    ('binutils', '2.38'),
+]
+
+dependencies = [
+    ('libtirpc', '1.3.2'),
+]
+
+# Provide a symlink for libnsl.so.1, which used to be part of glibc.
+# This new version of libnsl should be backwards compatible.
+postinstallcmds = ['ln -s libnsl.so %(installdir)s/lib/libnsl.so.1']
+
+sanity_check_paths = {
+    'files': ['include/rpcsvc/yp.h', 'lib/libnsl.a',
+              'lib/libnsl.%s' % SHLIB_EXT, 'lib/libnsl.%s.1' % SHLIB_EXT],
+    'dirs': ['include']
+}
+
+moduleclass = 'devel'
diff --git a/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.7.1-iompi-2020b.eb b/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.7.1-iompi-2020b.eb
new file mode 100644
index 00000000..cc710b20
--- /dev/null
+++ b/o/OSU-Micro-Benchmarks/OSU-Micro-Benchmarks-5.7.1-iompi-2020b.eb
@@ -0,0 +1,29 @@
+# IT4Innovations 2023
+# JK
+
+easyblock = 'ConfigureMake'
+
+name = 'OSU-Micro-Benchmarks'
+version = '5.7.1'
+
+homepage = 'https://mvapich.cse.ohio-state.edu/benchmarks/'
+description = """OSU Micro-Benchmarks"""
+
+toolchain = {'name': 'iompi', 'version': '2020b-test'}
+toolchainopts = {'usempi': True}
+
+source_urls = ['https://mvapich.cse.ohio-state.edu/download/mvapich/']
+sources = [SOURCELOWER_TGZ]
+checksums = ['cb5ce4e2e68ed012d9952e96ef880a802058c87a1d840a2093b19bddc7faa165']
+
+local_benchmark_dirs = [
+    'libexec/osu-micro-benchmarks/mpi/%s' % x for x in ['collective', 'one-sided', 'pt2pt', 'startup']
+]
+modextrapaths = {'PATH': local_benchmark_dirs}
+
+sanity_check_paths = {
+    'files': [],
+    'dirs': local_benchmark_dirs,
+}
+
+moduleclass = 'perf'
diff --git a/o/OpenMPI/OpenMPI-4.0.5-iccifort-2020.4.304-test.eb b/o/OpenMPI/OpenMPI-4.0.5-iccifort-2020.4.304-test.eb
new file mode 100644
index 00000000..6855d241
--- /dev/null
+++ b/o/OpenMPI/OpenMPI-4.0.5-iccifort-2020.4.304-test.eb
@@ -0,0 +1,87 @@
+# IT4Innovations 2023
+# JK
+
+name = 'OpenMPI'
+version = '4.0.5'
+versionsuffix = '-test'
+
+homepage = 'https://www.open-mpi.org/'
+description = """The Open MPI Project is an open source MPI-3 implementation."""
+
+toolchain = {'name': 'iccifort', 'version': '2020.4.304'}
+
+source_urls = ['https://www.open-mpi.org/software/ompi/v%(version_major_minor)s/downloads']
+sources = [SOURCELOWER_TAR_GZ]
+patches = [
+    'OpenMPI-4.0.1_remove-pmix-check-in-pmi-switch.patch',
+    'OpenMPI-4.x_fix_pmix_discovery.patch',
+    'OpenMPI-4.0.5-6-pml-ucx-datatype-memleak.patch',
+]
+checksums = [
+    '572e777441fd47d7f06f1b8a166e7f44b8ea01b8b2e79d1e299d509725d1bd05',  # openmpi-4.0.5.tar.gz
+    # OpenMPI-4.0.1_remove-pmix-check-in-pmi-switch.patch
+    'a5737061eb9006e862f30019776adf092d800f681272be7f1575e74b4bfa20fb',
+    '547641fff884c917237d158b0b13bdf387977cf0dddfd7e49e78d5f759a6a31b',  # OpenMPI-4.x_fix_pmix_discovery.patch
+    # OpenMPI-4.0.5-6-pml-ucx-datatype-memleak.patch
+    '7d8695f0d23453c82638ad33b18e41690274d5c7784291213e98335b42c54578',
+]
+
+builddependencies = [
+    ('pkg-config', '0.29.2'),
+]
+
+dependencies = [
+    ('zlib', '1.2.11'),
+    ('hwloc', '2.2.0'),
+    ('libevent', '2.1.12'),
+    ('UCX', '1.9.0'),
+    ('libfabric', '1.11.0'),
+    ('PMIx', '3.1.5'),
+]
+
+configopts = '--enable-shared --enable-mpi-thread-multiple --with-verbs '
+configopts += '--enable-mpirun-prefix-by-default '
+configopts += '--with-hwloc=$EBROOTHWLOC '  # hwloc support
+configopts += '--with-tm=/opt/pbs '  # Enable PBS
+configopts += '--enable-mpi-cxx '  # Enable building the C++ MPI bindings
+configopts += '--with-ucx=$EBROOTUCX '
+
+postinstallcmds = [
+    'echo "# By default, for Open MPI 4.0 and later, infiniband ports on a device are not used by default." >> %(installdir)s/etc/openmpi-mca-params.conf',
+    'echo "btl_openib_allow_ib = true" >> %(installdir)s/etc/openmpi-mca-params.conf',
+]
+
+local_libs = ["mpi_mpifh", "mpi", "ompitrace", "open-pal", "open-rte"]
+sanity_check_paths = {
+    'files': [
+        "bin/%s" %
+        binfile for binfile in [
+            "ompi_info", "opal_wrapper", "orterun"]] + [
+                "lib/lib%s.%s" %
+                (libfile, SHLIB_EXT) for libfile in local_libs] + [
+                    "include/%s.h" %
+                    x for x in [
+                        "mpi-ext", "mpif-config", "mpif", "mpi", "mpi_portable_platform"]], 'dirs': [], }
+
+import os
+if os.environ.get("CLUSTERNAME") in ["BARBORA"]:
+   modextravars = {'OMPI_MCA_btl_openib_if_include': 'mlx5_0',
+                'OMPI_MCA_btl_tcp_if_include': '10.33.4.0/24',
+                'OMPI_MCA_orte_base_help_aggregate': '0',
+   }
+elif os.environ.get("CLUSTERNAME") in ["KAROLINA"]:
+   modextravars = {'OMPI_MCA_btl_openib_if_include': 'mlx5_0',
+                'OMPI_MCA_orte_base_help_aggregate': '0',
+   }
+else:
+   modextravars = {'OMPI_MCA_btl_openib_if_include': 'mlx4_0',
+                'OMPI_MCA_oob_tcp_if_include': '10.0.0.0/8',
+   }
+
+# disable MPI1 compatibility for now, see what breaks...
+# configopts = '--enable-mpi1-compatibility '
+
+# to enable SLURM integration (site-specific)
+# configopts += '--with-slurm --with-pmi=/usr/include/slurm --with-pmi-libdir=/usr'
+
+moduleclass = 'mpi'
diff --git a/p/PyYAML/PyYAML-5.4.1.1-GCCcore-12.2.0.eb b/p/PyYAML/PyYAML-5.4.1.1-GCCcore-12.2.0.eb
new file mode 100644
index 00000000..873f3b89
--- /dev/null
+++ b/p/PyYAML/PyYAML-5.4.1.1-GCCcore-12.2.0.eb
@@ -0,0 +1,30 @@
+# IT4Innovations
+# LK 2023
+
+easyblock = 'PythonPackage'
+
+name = 'PyYAML'
+version = '5.4.1.1'
+
+homepage = 'https://github.com/yaml/pyyaml'
+description = "PyYAML is a YAML parser and emitter for the Python programming language."
+
+toolchain = {'name': 'GCCcore', 'version': '12.2.0'}
+
+sources = ['https://github.com/yaml/pyyaml/archive/refs/tags/%(version)s.tar.gz']
+checksums = ['e79dbaae8d9253aad313ca68cf65193f810260fb44fe0508625c7e9561eb57f2']
+
+builddependencies = [
+    ('binutils', '2.39'),
+]
+dependencies = [
+    ('Python', '3.10.8'),
+    ('libyaml', '0.2.5'),
+]
+
+download_dep_fail = True
+sanity_pip_check = True
+use_pip = True
+options = {'modulename': 'yaml'}
+
+moduleclass = 'lib'
diff --git a/r/rclone/rclone-1.61.1.eb b/r/rclone/rclone-1.61.1.eb
new file mode 100644
index 00000000..249b017a
--- /dev/null
+++ b/r/rclone/rclone-1.61.1.eb
@@ -0,0 +1,38 @@
+# IT4Innovations
+# LK 2023
+
+easyblock = 'GoPackage'
+
+name = 'rclone'
+version = '1.61.1'
+
+homepage = 'https://rclone.org'
+
+description = """
+ Rclone is a command line program to sync files and directories to and from
+ a variety of online storage services
+"""
+
+toolchain = SYSTEM
+
+source_urls = [GITHUB_SOURCE]
+sources = ['v%(version)s.tar.gz']
+checksums = ['f9fb7bae1f19896351db64e3713b67bfd151c49b2b28e6c6233adf67dbc2c899']
+
+# rclone 1.61.1 needs at least Go 1.17
+builddependencies = [('Go', '1.17.3')]
+
+postinstallcmds = [
+    "mkdir -p %(installdir)s/share/{doc,man/man1}",
+    "cp README.* MANUAL.* %(installdir)s/share/doc/",
+    "cp rclone.1 %(installdir)s/share/man/man1/",
+]
+
+sanity_check_paths = {
+    'files': ['bin/rclone', 'share/doc/README.md', 'share/man/man1/rclone.1'],
+    'dirs': []
+}
+
+sanity_check_commands = ['rclone --version']
+
+moduleclass = 'tools'
diff --git a/s/s3cmd/s3cmd-2.3.0-GCCcore-12.2.0-Python-3.10.8.eb b/s/s3cmd/s3cmd-2.3.0-GCCcore-12.2.0-Python-3.10.8.eb
new file mode 100644
index 00000000..3b8ed953
--- /dev/null
+++ b/s/s3cmd/s3cmd-2.3.0-GCCcore-12.2.0-Python-3.10.8.eb
@@ -0,0 +1,42 @@
+# IT4Innovations
+# LK 2023
+# Je to kravina, ale postup je spustit, pockat az to spadne, spustit s -x, zkopirovat modulefile, pridat do nej 
+# prepend_path("PYTHONPATH", pathJoin(root, "lib/python3.10/site-packages")), udelat odkaz do tools/s3cmd a je to
+
+easyblock = 'PythonBundle'
+
+name = 's3cmd'
+version = '2.3.0'
+versionsuffix = '-Python-%(pyver)s'
+
+homepage = 'https://pypi.python.org/pypi/s3cmd'
+description = """S3cmd is a free command line tool and client for uploading, retrieving and managing data in Amazon S3 and other cloud storage service providers that use the S3 protocol, such as Google Cloud Storage or DreamHost DreamObjects. It is best suited for power users who are familiar with command line programs. It is also ideal for batch scripts and automated backup to S3, triggered from cron, etc."""
+
+toolchain = {'name': 'GCCcore', 'version': '12.2.0'}
+
+builddependencies = [
+    ('binutils', '2.39'),
+]
+
+dependencies = [
+    ('Python', '3.10.8'),
+]
+
+use_pip = True
+download_dep_fail = True
+
+exts_list = [
+    ('python-magic', '0.4.27', {
+        'checksums': ['c1ba14b08e4a5f5c31a302b7721239695b2f0f058d125bd5ce1ee36b9d9d3c3b'],
+    }),
+    (name, version, {
+        'checksums': ['15330776e7ff993d8ae0ac213bf896f210719e9b91445f5f7626a8fa7e74e30b'],
+    }),
+]
+
+sanity_check_paths = {
+    'files': ['bin/s3cmd'],
+    'dirs': ['lib/python%(pyshortver)s/site-packages/'],
+}
+
+moduleclass = 'tools'
diff --git a/v/VirtualGL/VirtualGL-3.0-GCC-11.3.0.eb b/v/VirtualGL/VirtualGL-3.0-GCC-11.3.0.eb
new file mode 100644
index 00000000..4f250903
--- /dev/null
+++ b/v/VirtualGL/VirtualGL-3.0-GCC-11.3.0.eb
@@ -0,0 +1,43 @@
+# IT4Innovations 2023
+# JK
+
+easyblock = 'CMakeMake'
+
+name = 'VirtualGL'
+version = '3.0'
+
+homepage = 'https://virtualgl.org/'
+description = """VirtualGL is an open source toolkit that gives any Linux or 
+Unix remote display software the ability to run OpenGL applications with full 
+hardware acceleration."""
+
+toolchain = {'name': 'GCC', 'version': '11.3.0'}
+
+source_urls = ['https://github.com/VirtualGL/virtualgl/archive/']
+sources = ['%(version)s.tar.gz']
+checksums = ['d6e00a8d0596cafa67955d6211e0dab6c8aa8239bd718f7eca6eb0b032711f9b']
+
+builddependencies = [
+    ('CMake', '3.20.1', '', True),
+    ('binutils', '2.38'),
+]
+
+dependencies = [
+    ('libjpeg-turbo', '2.1.3'),
+    ('Mesa', '22.0.3'),
+    ('libGLU', '9.0.2'),
+    ('pocl', '1.8'),
+]
+
+local_binaries = [
+    'cpustat', 'glreadtest', 'glxinfo', 'glxspheres64', 'nettest', 'tcbench',
+    'vglclient', 'vglconfig', 'vglconnect', 'vglgenkey', 'vgllogin', 'vglrun',
+    'vglserver_config'
+]
+
+sanity_check_paths = {
+    'files': ['bin/%s' % x for x in local_binaries],
+    'dirs': ['lib64', 'share', 'include'],
+}
+
+moduleclass = 'vis'
diff --git a/x/XALT/XALT-2.10.45-eb.eb b/x/XALT/XALT-2.10.45-eb.eb
index 32e4ac38..05473415 100644
--- a/x/XALT/XALT-2.10.45-eb.eb
+++ b/x/XALT/XALT-2.10.45-eb.eb
@@ -34,7 +34,7 @@ syshost = "env_var:CLUSTERNAME"
 # file, or use 'eb --try-amend=transmission=<string>'.  See
 # https://xalt.readthedocs.io/en/latest/020_site_configuration.html
 # for more information.
-transmission = "file"
+transmission = "syslog"
 
 # Additional options
 executable_tracking = True