diff --git a/easybuild/easyconfigs/l/libpciaccess/libpciaccess-0.18.1-GCCcore-13.3.0.eb b/easybuild/easyconfigs/l/libpciaccess/libpciaccess-0.18.1-GCCcore-13.3.0.eb
new file mode 100644
index 000000000000..7b1be7bc436d
--- /dev/null
+++ b/easybuild/easyconfigs/l/libpciaccess/libpciaccess-0.18.1-GCCcore-13.3.0.eb
@@ -0,0 +1,29 @@
+easyblock = 'MesonNinja'
+
+name = 'libpciaccess'
+version = '0.18.1'
+
+homepage = 'https://cgit.freedesktop.org/xorg/lib/libpciaccess/'
+description = """Generic PCI access library."""
+
+toolchain = {'name': 'GCCcore', 'version': '13.3.0'}
+
+source_urls = ['https://www.x.org/releases/individual/lib/']
+sources = [SOURCE_TAR_XZ]
+checksums = ['4af43444b38adb5545d0ed1c2ce46d9608cc47b31c2387fc5181656765a6fa76']
+
+builddependencies = [
+    ('binutils', '2.42'),
+    ('Meson', '1.4.0'),
+    ('Ninja', '1.12.1'),
+    ('xorg-macros', '1.20.1'),
+]
+
+configopts = "--default-library=both"  # static and shared library
+
+sanity_check_paths = {
+    'files': ['include/pciaccess.h', 'lib/libpciaccess.a'],
+    'dirs': ['lib/pkgconfig'],
+}
+
+moduleclass = 'system'
diff --git a/easybuild/easyconfigs/m/Meson/Meson-1.4.0-GCCcore-13.3.0.eb b/easybuild/easyconfigs/m/Meson/Meson-1.4.0-GCCcore-13.3.0.eb
new file mode 100644
index 000000000000..7e8d5b0b7bbb
--- /dev/null
+++ b/easybuild/easyconfigs/m/Meson/Meson-1.4.0-GCCcore-13.3.0.eb
@@ -0,0 +1,36 @@
+easyblock = 'PythonPackage'
+
+name = 'Meson'
+version = '1.4.0'
+
+homepage = 'https://mesonbuild.com'
+description = "Meson is a cross-platform build system designed to be both as fast and as user friendly as possible."
+
+toolchain = {'name': 'GCCcore', 'version': '13.3.0'}
+
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['8fd6630c25c27f1489a8a0392b311a60481a3c161aa699b330e25935b750138d']
+
+builddependencies = [
+    ('binutils', '2.42'),
+]
+
+dependencies = [
+    ('Python', '3.12.3'),  # includes required 'wheel' package
+    ('Ninja', '1.12.1'),
+]
+
+download_dep_fail = True
+use_pip = True
+sanity_pip_check = True
+
+options = {'modulename': 'mesonbuild'}
+
+sanity_check_paths = {
+    'files': ['bin/meson'],
+    'dirs': ['lib/python%(pyshortver)s/site-packages'],
+}
+
+sanity_check_commands = ["meson --help"]
+
+moduleclass = 'tools'
diff --git a/easybuild/easyconfigs/n/Ninja/Ninja-1.12.1-GCCcore-13.3.0.eb b/easybuild/easyconfigs/n/Ninja/Ninja-1.12.1-GCCcore-13.3.0.eb
new file mode 100644
index 000000000000..9e6a998f7078
--- /dev/null
+++ b/easybuild/easyconfigs/n/Ninja/Ninja-1.12.1-GCCcore-13.3.0.eb
@@ -0,0 +1,31 @@
+easyblock = 'CmdCp'
+
+name = 'Ninja'
+version = '1.12.1'
+
+homepage = 'https://ninja-build.org/'
+description = "Ninja is a small build system with a focus on speed."
+
+toolchain = {'name': 'GCCcore', 'version': '13.3.0'}
+
+source_urls = ['https://github.com/ninja-build/ninja/archive/']
+sources = ['v%(version)s.tar.gz']
+checksums = ['821bdff48a3f683bc4bb3b6f0b5fe7b2d647cf65d52aeb63328c91a6c6df285a']
+
+builddependencies = [
+    ('binutils', '2.42'),
+    ('Python', '3.12.3'),
+]
+
+cmds_map = [('.*', "./configure.py --bootstrap")]
+
+files_to_copy = [(['ninja'], 'bin')]
+
+sanity_check_paths = {
+    'files': ['bin/ninja'],
+    'dirs': [],
+}
+
+sanity_check_commands = ["ninja --version"]
+
+moduleclass = 'tools'