diff --git a/easybuild/easyconfigs/c/CMake/CMake-4.2.1-GCCcore-15.2.0.eb b/easybuild/easyconfigs/c/CMake/CMake-4.2.1-GCCcore-15.2.0.eb
new file mode 100644
index 000000000000..a04c9d438de5
--- /dev/null
+++ b/easybuild/easyconfigs/c/CMake/CMake-4.2.1-GCCcore-15.2.0.eb
@@ -0,0 +1,30 @@
+name = 'CMake'
+version = '4.2.1'
+
+homepage = 'https://www.cmake.org'
+
+description = """
+ CMake, the cross-platform, open-source build system.  CMake is a family of
+ tools designed to build, test and package software.
+"""
+
+toolchain = {'name': 'GCCcore', 'version': '15.2.0'}
+
+source_urls = ['https://www.cmake.org/files/v%(version_major_minor)s']
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['414aacfac54ba0e78e64a018720b64ed6bfca14b587047b8b3489f407a14a070']
+
+builddependencies = [
+    ('binutils', '2.45'),
+]
+
+dependencies = [
+    ('ncurses', '6.6'),
+    ('zlib', '2.3.2'),
+    ('bzip2', '1.0.8'),
+    ('cURL', '8.17.0'),
+    ('libarchive', '3.8.5'),
+    ('OpenSSL', '3', '', SYSTEM),
+]
+
+moduleclass = 'devel'
diff --git a/easybuild/easyconfigs/c/cURL/cURL-8.17.0-GCCcore-15.2.0.eb b/easybuild/easyconfigs/c/cURL/cURL-8.17.0-GCCcore-15.2.0.eb
new file mode 100644
index 000000000000..d8ecea684d76
--- /dev/null
+++ b/easybuild/easyconfigs/c/cURL/cURL-8.17.0-GCCcore-15.2.0.eb
@@ -0,0 +1,46 @@
+easyblock = 'ConfigureMake'
+
+name = 'cURL'
+version = '8.17.0'
+
+homepage = 'https://curl.haxx.se'
+
+description = """
+ libcurl is a free and easy-to-use client-side URL transfer library,
+ supporting DICT, FILE, FTP, FTPS, Gopher, HTTP, HTTPS, IMAP, IMAPS, LDAP,
+ LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMTP, SMTPS, Telnet and TFTP.
+ libcurl supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP
+ form based upload, proxies, cookies, user+password authentication (Basic,
+ Digest, NTLM, Negotiate, Kerberos), file transfer resume, http proxy tunneling
+ and more.
+"""
+
+toolchain = {'name': 'GCCcore', 'version': '15.2.0'}
+
+source_urls = ['https://curl.haxx.se/download/']
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['e8e74cdeefe5fb78b3ae6e90cd542babf788fa9480029cfcee6fd9ced42b7910']
+
+builddependencies = [
+    ('binutils', '2.45'),
+    ('pkgconf', '2.5.1'),
+]
+
+dependencies = [
+    ('zlib', '2.3.2'),
+    ('libpsl', '0.21.5'),
+    ('OpenSSL', '3', '', SYSTEM),
+]
+
+configopts = '--with-zlib '
+configopts += '--with-ssl=$EBROOTOPENSSL '
+configopts += '--without-libgsasl'  # Avoid picking up system libraries
+
+modextravars = {'CURL_INCLUDES': '%(installdir)s/include'}
+
+sanity_check_paths = {
+    'files': ['bin/curl', 'lib/libcurl.a', 'lib/libcurl.%s' % SHLIB_EXT],
+    'dirs': ['lib/pkgconfig', 'include/curl'],
+}
+
+moduleclass = 'tools'
diff --git a/easybuild/easyconfigs/g/git/git-2.52.0-GCCcore-15.2.0.eb b/easybuild/easyconfigs/g/git/git-2.52.0-GCCcore-15.2.0.eb
new file mode 100644
index 000000000000..e65ec4d7e61e
--- /dev/null
+++ b/easybuild/easyconfigs/g/git/git-2.52.0-GCCcore-15.2.0.eb
@@ -0,0 +1,42 @@
+easyblock = 'ConfigureMake'
+
+name = 'git'
+version = '2.52.0'
+
+homepage = 'https://git-scm.com'
+description = """Git is a free and open source distributed version control system designed
+to handle everything from small to very large projects with speed and efficiency."""
+
+toolchain = {'name': 'GCCcore', 'version': '15.2.0'}
+
+source_urls = ['https://github.com/git/git/archive']
+sources = ['v%(version)s.tar.gz']
+checksums = ['da8be57afb73a2370a5a891405b5e5624562f07a5c041f9e827e75320dc61114']
+
+builddependencies = [
+    ('binutils', '2.45'),
+    ('Autotools', '20250626'),
+]
+
+dependencies = [
+    ('cURL', '8.17.0'),
+    ('expat', '2.7.3'),
+    ('gettext', '0.26'),
+    ('Perl', '5.42.0'),
+    ('OpenSSL', '3', '', SYSTEM),
+]
+
+preconfigopts = 'make configure && '
+
+# Work around git build system bug.  If LIBS contains -lpthread, then configure
+# will not append -lpthread to LDFLAGS, but Makefile ignores LIBS.
+configopts = "--with-perl=${EBROOTPERL}/bin/perl --enable-pthreads='-lpthread'"
+
+postinstallcmds = ['cd contrib/subtree; make install']
+
+sanity_check_paths = {
+    'files': ['bin/git'],
+    'dirs': ['libexec/git-core', 'share'],
+}
+
+moduleclass = 'tools'
diff --git a/easybuild/easyconfigs/l/libarchive/libarchive-3.8.5-GCCcore-15.2.0.eb b/easybuild/easyconfigs/l/libarchive/libarchive-3.8.5-GCCcore-15.2.0.eb
new file mode 100644
index 000000000000..9abd6e37d4ca
--- /dev/null
+++ b/easybuild/easyconfigs/l/libarchive/libarchive-3.8.5-GCCcore-15.2.0.eb
@@ -0,0 +1,37 @@
+easyblock = 'ConfigureMake'
+
+name = 'libarchive'
+version = '3.8.5'
+
+homepage = 'https://www.libarchive.org/'
+
+description = """
+ Multi-format archive and compression library
+"""
+
+toolchain = {'name': 'GCCcore', 'version': '15.2.0'}
+
+source_urls = ['https://github.com/libarchive/libarchive/releases/download/v%(version)s/']
+sources = [SOURCE_TAR_GZ]
+checksums = ['8a60f3a7bfd59c54ce82ae805a93dba65defd04148c3333b7eaa2102f03b7ffd']
+
+builddependencies = [
+    ('binutils', '2.45'),
+    ('libiconv', '1.18'),
+]
+
+dependencies = [
+    ('zlib', '2.3.2'),
+    ('XZ', '5.8.2'),
+    ('libxml2', '2.15.1'),
+    ('OpenSSL', '3', '', SYSTEM),
+    ('lz4', '1.10.0'),
+    ('zstd', '1.5.7'),
+]
+
+sanity_check_paths = {
+    'files': ['include/archive.h', 'lib/libarchive.%s' % SHLIB_EXT],
+    'dirs': ['bin', 'share/man/man3'],
+}
+
+moduleclass = 'tools'
diff --git a/easybuild/easyconfigs/l/libpsl/libpsl-0.21.5-GCCcore-15.2.0.eb b/easybuild/easyconfigs/l/libpsl/libpsl-0.21.5-GCCcore-15.2.0.eb
new file mode 100644
index 000000000000..c2785ee91be3
--- /dev/null
+++ b/easybuild/easyconfigs/l/libpsl/libpsl-0.21.5-GCCcore-15.2.0.eb
@@ -0,0 +1,32 @@
+easyblock = 'ConfigureMake'
+
+name = 'libpsl'
+version = '0.21.5'
+
+homepage = 'https://rockdaboot.github.io/libpsl'
+description = "C library for the Public Suffix List"
+
+toolchain = {'name': 'GCCcore', 'version': '15.2.0'}
+
+source_urls = ['https://github.com/rockdaboot/libpsl/releases/download/%(version)s']
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['1dcc9ceae8b128f3c0b3f654decd0e1e891afc6ff81098f227ef260449dae208']
+
+builddependencies = [
+    ('binutils', '2.45'),
+    ('Python', '3.14.2'),
+]
+
+dependencies = [
+    ('libidn2', '2.3.8'),
+    ('libunistring', '1.4.1'),
+]
+
+sanity_check_commands = [('psl --version')]
+
+sanity_check_paths = {
+    'files': ['bin/psl', 'lib/libpsl.a'],
+    'dirs': []
+}
+
+moduleclass = 'lib'