diff --git a/easybuild/easyconfigs/g/gap/gap-4.13.0-foss-2023b.eb b/easybuild/easyconfigs/g/gap/gap-4.13.0-foss-2023b.eb
new file mode 100644
index 00000000000..248ab5ded0a
--- /dev/null
+++ b/easybuild/easyconfigs/g/gap/gap-4.13.0-foss-2023b.eb
@@ -0,0 +1,55 @@
+easyblock = 'ConfigureMake'
+
+name = 'gap'
+version = '4.13.0'
+
+homepage = 'https://www.gap-system.org'
+description = """GAP is a system for computational discrete algebra,
+with particular emphasis on Computational Group Theory."""
+
+toolchain = {'name': 'foss', 'version': '2023b'}
+toolchainopts = {'pic': True}
+
+source_urls = ['https://www.gap-system.org/pub/gap/gap-%(version_major_minor)s/tar.gz/']
+sources = [SOURCE_TAR_GZ]
+checksums = ['cc76ecbe33d6719450a593e613fb87e9e4247faa876f632dd0f97c398f92265d']
+
+unpack_options = '--strip-components=1'
+
+builddependencies = [
+    ('Perl', '5.38.0'),  # needed to install NormalizInterface
+]
+
+dependencies = [
+    ('GMP', '6.3.0'),
+    ('libreadline', '8.2'),
+    ('zlib', '1.2.13'),
+    ('4ti2', '1.6.10'),  # needed by 4ti2Interface, HeLP
+    ('cddlib', '0.94m'),  # needed by CddInterface
+    ('cURL', '8.3.0'),  # needed by curlInterface
+    ('lrslib', '7.2'),  # needed by HeLP
+    ('ncurses', '6.4'),  # needed by Browse
+    ('Normaliz', '3.10.3'),  # needed by NormalizInterface, HeLP
+    ('Singular', '4.4.0'),  # needed by singular
+    ('ZeroMQ', '4.3.5'),  # needed by ZeroMQInterface
+]
+
+# install target is incomplete and hardcodes the build path
+buildininstalldir = True
+
+# Disable bundled script to download and build Normaliz
+prebuildopts = "sed -i 's|./build-normaliz.sh|continue # build-normaliz.sh|' bin/BuildPackages.sh && "
+# BuildPackages.sh tries to build any GAP packages that require compilation
+# If one fails due to missing dependencies, it's skipped automatically
+buildopts = ' && cd pkg && ../bin/BuildPackages.sh'
+
+sanity_check_paths = {
+    'files': ['bin/%s' % x for x in ['gap', 'gac']] +
+             ['include/gap/%s.h' % h for h in ['gap', 'system', 'version']] +
+             ['lib/libgap.%s' % SHLIB_EXT],
+    'dirs': ['share/gap']
+}
+
+sanity_check_commands = ["gap tst/testinstall.g"]
+
+moduleclass = 'math'
diff --git a/easybuild/easyconfigs/n/Normaliz/Normaliz-3.10.3-gfbf-2023b.eb b/easybuild/easyconfigs/n/Normaliz/Normaliz-3.10.3-gfbf-2023b.eb
new file mode 100644
index 00000000000..6651c1a848d
--- /dev/null
+++ b/easybuild/easyconfigs/n/Normaliz/Normaliz-3.10.3-gfbf-2023b.eb
@@ -0,0 +1,47 @@
+easyblock = 'ConfigureMake'
+
+name = 'Normaliz'
+version = '3.10.3'
+
+homepage = 'https://www.normaliz.uni-osnabrueck.de/'
+description = """Normaliz is a open source tool for computations in affine monoids, vector
+configurations, rational polyhedra and rational cones. Normaliz now computes
+rational and algebraic polyhedra, i.e., polyhedra defined over real algebraic
+extensions of QQ."""
+
+toolchain = {'name': 'gfbf', 'version': '2023b'}
+toolchainopts = {'pic': True, 'openmp': True, 'cstd': 'c++14'}
+
+github_account = 'Normaliz'
+source_urls = [GITHUB_SOURCE]
+sources = ['v%(version)s.tar.gz']
+checksums = ['d9536ab3568053a8dd9aeabe09ef901c1c0ebbda37be50775a120eb9e7ff47cb']
+
+builddependencies = [
+    ('Autotools', '20220317'),
+]
+
+dependencies = [
+    ('Boost', '1.83.0'),
+    ('GMP', '6.3.0'),
+    ('CoCoALib', '0.99850'),
+    ('FLINT', '3.1.1'),
+    ('E-ANTIC', '2.0.2'),
+    ('nauty', '2.8.8'),
+]
+
+preconfigopts = "autoreconf -f -i && "
+
+configopts = "--with-gmp=$EBROOTGMP --with-cocoalib=$EBROOTCOCOALIB --with-flint=$EBROOTFLINT "
+configopts += "--with-e-antic=$EBROOTEMINANTIC --with-nauty=$EBROOTNAUTY"
+
+runtest = 'check'
+
+sanity_check_paths = {
+    'files': ['bin/normaliz'] + ['lib/libnormaliz.%s' % e for e in ['a', SHLIB_EXT]],
+    'dirs': ['include/libnormaliz']
+}
+
+sanity_check_commands = ["normaliz --help"]
+
+moduleclass = 'math'