diff --git a/easybuild/easyconfigs/a/AOCL-BLAS/AOCL-BLAS-5.2-GCC-15.2.0.eb b/easybuild/easyconfigs/a/AOCL-BLAS/AOCL-BLAS-5.2-GCC-15.2.0.eb
new file mode 100644
index 000000000000..14fa21d81fb2
--- /dev/null
+++ b/easybuild/easyconfigs/a/AOCL-BLAS/AOCL-BLAS-5.2-GCC-15.2.0.eb
@@ -0,0 +1,24 @@
+easyblock = 'EB_BLIS'
+
+name = 'AOCL-BLAS'
+version = '5.2'
+
+homepage = 'https://github.com/amd/blis'
+description = """AOCL-BLAS is AMD's optimized version of
+                 BLAS targeted for AMD EPYC and Ryzen CPUs."""
+
+toolchain = {'name': 'GCC', 'version': '15.2.0'}
+toolchainopts = {'openmp': True}
+
+source_urls = ['https://github.com/amd/blis/archive/']
+sources = ['%(version)s.tar.gz']
+checksums = ['c553bd543eedc87920df9b82634ae4c02662145ed737f51fdf4c9bca5e588028']
+
+builddependencies = [
+    ('Python', '3.14.2'),
+    ('Perl', '5.42.0'),
+]
+
+runtest = 'check'
+
+moduleclass = 'numlib'
diff --git a/easybuild/easyconfigs/b/BLIS/BLIS-2.0-GCC-15.2.0.eb b/easybuild/easyconfigs/b/BLIS/BLIS-2.0-GCC-15.2.0.eb
new file mode 100644
index 000000000000..35b6ffd37337
--- /dev/null
+++ b/easybuild/easyconfigs/b/BLIS/BLIS-2.0-GCC-15.2.0.eb
@@ -0,0 +1,22 @@
+name = 'BLIS'
+version = '2.0'
+
+homepage = 'https://github.com/flame/blis/'
+description = """BLIS is a portable software framework for instantiating high-performance
+BLAS-like dense linear algebra libraries."""
+
+toolchain = {'name': 'GCC', 'version': '15.2.0'}
+toolchainopts = {'openmp': True}
+
+source_urls = ['https://github.com/flame/blis/archive/']
+sources = ['%(version)s.tar.gz']
+checksums = ['08bbebd77914a6d1a43874ae5ec2f54fe6a77cba745f2532df28361b0f1ad1b3']
+
+builddependencies = [
+    ('Python', '3.14.2'),
+    ('Perl', '5.42.0'),
+]
+
+runtest = 'check'
+
+moduleclass = 'numlib'
diff --git a/easybuild/easyconfigs/f/FlexiBLAS/FlexiBLAS-3.5.0-GCC-15.2.0.eb b/easybuild/easyconfigs/f/FlexiBLAS/FlexiBLAS-3.5.0-GCC-15.2.0.eb
new file mode 100644
index 000000000000..2cd45e42653b
--- /dev/null
+++ b/easybuild/easyconfigs/f/FlexiBLAS/FlexiBLAS-3.5.0-GCC-15.2.0.eb
@@ -0,0 +1,67 @@
+easyblock = 'Bundle'
+
+name = 'FlexiBLAS'
+version = '3.5.0'
+
+homepage = 'https://gitlab.mpi-magdeburg.mpg.de/software/flexiblas-release'
+description = """FlexiBLAS is a wrapper library that enables the exchange of the BLAS and LAPACK implementation
+used by a program without recompiling or relinking it."""
+
+toolchain = {'name': 'GCC', 'version': '15.2.0'}
+local_extra_flags = "-fstack-protector-strong -fstack-clash-protection"
+toolchainopts = {'pic': True, 'extra_cflags': local_extra_flags, 'extra_fflags': local_extra_flags}
+
+builddependencies = [
+    ('CMake', '4.2.1'),
+    ('Python', '3.14.2'),  # required for running the tests
+    ('BLIS', '2.0'),
+]
+if ARCH == 'x86_64':
+    builddependencies.append(('AOCL-BLAS', '5.2'))
+if ARCH == 'aarch64':
+    builddependencies.append(('NVPL', '25.11', '', SYSTEM))
+
+dependencies = [
+    ('OpenBLAS', '0.3.31'),
+]
+
+# note: first listed backend will be used as default by FlexiBLAS,
+# unless otherwise specified via easyconfig parameter flexiblas_default
+local_backends = ['OpenBLAS', 'BLIS']
+
+# imkl supplies its backend via the imkl module, not as a dependency
+if ARCH == 'x86_64':
+    local_backends.extend(['AOCL-BLAS', 'imkl'])
+if ARCH == 'aarch64':
+    local_backends.extend(['NVPL'])
+
+default_component_specs = {'start_dir': '%(namelower)s-%(version)s'}
+sanity_check_all_components = True
+
+# Also build and install LAPACKE. FlexiBLAS v3.5.0 mentions support for LAPACKE
+# and provides a fallback shared library, but does not include pkgconf files for it.
+# LAPACK version matches the one built by FlexiBLAS v3.5.0.
+components = [
+    (name, version, {
+        'source_urls':
+        ['https://gitlab.mpi-magdeburg.mpg.de/api/v4/projects/386/packages/generic/flexiblas-source/v%(version)s/'],
+        'sources': [SOURCELOWER_TAR_GZ],
+        'checksums': ['4f135fd3d4d844f221624b13734acd0d221a4347a19fa78604a6cbcaa3f477ea'],
+        'backends': local_backends,
+    }),
+    ('LAPACK', '3.12.1', {
+        'easyblock': 'CMakeMake',
+        'source_urls': ['https://github.com/Reference-LAPACK/lapack/archive/'],
+        'sources': ['v%(version)s.tar.gz'],
+        'checksums': ['2ca6407a001a474d4d4d35f3a61550156050c48016d949f0da0529c0aa052422'],
+        'configopts': ('-DBUILD_SHARED_LIBS=ON -DUSE_OPTIMIZED_BLAS=ON -DLAPACKE=ON '
+                       '-DUSE_OPTIMIZED_LAPACK=ON -DBUILD_DEPRECATED=ON -DBUILD_INDEX64_EXT_API=OFF '
+                       '-DCMAKE_INSTALL_INCLUDEDIR=%(installdir)s/include/flexiblas'),
+        'sanity_check_paths': {
+            'files': ['lib/liblapacke.%s' % SHLIB_EXT, 'include/flexiblas/lapacke.h'],
+            'dirs': [],
+        },
+    }),
+]
+
+moduleclass = 'lib'
diff --git a/easybuild/easyconfigs/m/make/make-4.4.1-GCCcore-15.2.0.eb b/easybuild/easyconfigs/m/make/make-4.4.1-GCCcore-15.2.0.eb
new file mode 100644
index 000000000000..3931d755b5ed
--- /dev/null
+++ b/easybuild/easyconfigs/m/make/make-4.4.1-GCCcore-15.2.0.eb
@@ -0,0 +1,29 @@
+easyblock = 'ConfigureMake'
+
+name = 'make'
+version = '4.4.1'
+
+homepage = 'https://www.gnu.org/software/make/make.html'
+description = "GNU version of make utility"
+
+toolchain = {'name': 'GCCcore', 'version': '15.2.0'}
+
+source_urls = [GNU_SOURCE]
+sources = [SOURCE_TAR_GZ]
+checksums = ['dd16fb1d67bfab79a72f5e8390735c49e3e8e70b4945a15ab1f81ddb78658fb3']
+
+builddependencies = [('binutils', '2.45')]
+
+postinstallcmds = ["cd %(installdir)s/bin && ln -s make gmake"]
+
+sanity_check_paths = {
+    'files': ['bin/gmake', 'bin/make'],
+    'dirs': []
+}
+
+sanity_check_commands = [
+    "gmake --help",
+    "make --help",
+]
+
+moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/o/OpenBLAS/OpenBLAS-0.3.31-GCC-15.2.0.eb b/easybuild/easyconfigs/o/OpenBLAS/OpenBLAS-0.3.31-GCC-15.2.0.eb
new file mode 100644
index 000000000000..78da6782a66d
--- /dev/null
+++ b/easybuild/easyconfigs/o/OpenBLAS/OpenBLAS-0.3.31-GCC-15.2.0.eb
@@ -0,0 +1,43 @@
+name = 'OpenBLAS'
+version = '0.3.31'
+
+homepage = 'https://www.openblas.net/'
+description = "OpenBLAS is an optimized BLAS library based on GotoBLAS2 1.13 BSD version."
+
+toolchain = {'name': 'GCC', 'version': '15.2.0'}
+
+source_urls = [
+    # order matters, trying to download the large.tgz/timing.tgz LAPACK tarballs from GitHub causes trouble
+    'https://www.netlib.org/lapack/timing/',
+    'https://github.com/xianyi/OpenBLAS/archive/',
+]
+sources = ['v%(version)s.tar.gz']
+patches = [
+    ('large.tgz', '.'),
+    ('timing.tgz', '.'),
+    'OpenBLAS-0.3.15_workaround-gcc-miscompilation.patch',
+    'OpenBLAS-0.3.21_fix-order-vectorization.patch',
+]
+checksums = [
+    {'v0.3.31.tar.gz': '6dd2a63ac9d32643b7cc636eab57bf4e57d0ed1fff926dfbc5d3d97f2d2be3a6'},
+    {'large.tgz': 'f328d88b7fa97722f271d7d0cfea1c220e0f8e5ed5ff01d8ef1eb51d6f4243a1'},
+    {'timing.tgz': '999c65f8ea8bd4eac7f1c7f3463d4946917afd20a997807300fe35d70122f3af'},
+    {'OpenBLAS-0.3.15_workaround-gcc-miscompilation.patch':
+     'e6b326fb8c4a8a6fd07741d9983c37a72c55c9ff9a4f74a80e1352ce5f975971'},
+    {'OpenBLAS-0.3.21_fix-order-vectorization.patch':
+     '08af834e5d60441fd35c128758ed9c092ba6887c829e0471ecd489079539047d'},
+]
+
+builddependencies = [
+    ('make', '4.4.1'),
+    # required by LAPACK test suite
+    ('Python', '3.14.2'),
+]
+
+run_lapack_tests = True
+max_failing_lapack_tests_num_errors = 150
+
+# extensive testing can be enabled by uncommenting the line below
+# runtest = 'PATH=.:$PATH lapack-timing'
+
+moduleclass = 'numlib'