Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
akonadi-server-devel
akonadi-server-devel(x86-32)
cmake(KPim6Akonadi)
cmake(kpim6akonadi)

Requires :

akonadi-server(x86-32) = 24.12.0-1.fc40
cmake(KF6Config)
cmake(KF6ConfigWidgets)
cmake(KF6CoreAddons)
cmake(KF6ItemModels)
cmake(KF6KIO)
cmake(KF6XmlGui)
cmake(Qt6Core)
cmake(Qt6DBus)
cmake(Qt6Gui)
cmake(Qt6Network)
cmake(Qt6Test)
cmake(Qt6Widgets)
cmake(Qt6Xml)
cmake-filesystem(x86-32)
libKPim6AkonadiAgentBase.so.6
libKPim6AkonadiCore.so.6
libKPim6AkonadiPrivate.so.6
libKPim6AkonadiWidgets.so.6
libKPim6AkonadiXml.so.6
libQt6Core.so.6
libQt6Core.so.6(Qt_6)
libQt6Core.so.6(Qt_6.7)
libQt6Gui.so.6
libQt6Gui.so.6(Qt_6)
libc.so.6
libc.so.6(GLIBC_2.0)
libc.so.6(GLIBC_2.1.3)
libc.so.6(GLIBC_2.3.4)
libc.so.6(GLIBC_2.4)
libc.so.6(GLIBC_ABI_DT_RELR)
libgcc_s.so.1
libgcc_s.so.1(GCC_3.0)
libgcc_s.so.1(GCC_3.3.1)
libstdc++.so.6
libstdc++.so.6(CXXABI_1.3)
libstdc++.so.6(CXXABI_1.3.9)
libstdc++.so.6(GLIBCXX_3.4)
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsZstd) <= 5.4.18-1
rtld(GNU_HASH)

Content of RPM :
/usr/include/KPim6/Akonadi
/usr/include/KPim6/Akonadi/akonadi
/usr/include/KPim6/Akonadi/akonadi/private
/usr/include/KPim6/Akonadi/akonadi/private/akonadiprivate_export.h
/usr/include/KPim6/Akonadi/akonadi/private/capabilities_p.h
/usr/include/KPim6/Akonadi/akonadi/private/compressionstream_p.h
/usr/include/KPim6/Akonadi/akonadi/private/dbus_p.h
/usr/include/KPim6/Akonadi/akonadi/private/externalpartstorage_p.h
/usr/include/KPim6/Akonadi/akonadi/private/imapparser_p.h
/usr/include/KPim6/Akonadi/akonadi/private/imapset_p.h
/usr/include/KPim6/Akonadi/akonadi/private/instance_p.h
/usr/include/KPim6/Akonadi/akonadi/private/protocol_exception_p.h
/usr/include/KPim6/Akonadi/akonadi/private/protocol_gen.h
/usr/include/KPim6/Akonadi/akonadi/private/protocol_p.h
/usr/include/KPim6/Akonadi/akonadi/private/scope_p.h
/usr/include/KPim6/Akonadi/akonadi/private/standarddirs_p.h
/usr/include/KPim6/Akonadi/akonadi/private/tristate_p.h
/usr/include/KPim6/AkonadiAgentBase
/usr/include/KPim6/AkonadiAgentBase/Akonadi
/usr/include/KPim6/AkonadiAgentBase/Akonadi/AccountsIntegration
/usr/include/KPim6/AkonadiAgentBase/Akonadi/AgentBase
/usr/include/KPim6/AkonadiAgentBase/Akonadi/AgentSearchInterface
/usr/include/KPim6/AkonadiAgentBase/Akonadi/PreprocessorBase
/usr/include/KPim6/AkonadiAgentBase/Akonadi/ResourceBase
/usr/include/KPim6/AkonadiAgentBase/Akonadi/ResourceSettings
/usr/include/KPim6/AkonadiAgentBase/Akonadi/TransportResourceBase
/usr/include/KPim6/AkonadiAgentBase/akonadi
/usr/include/KPim6/AkonadiAgentBase/akonadi/accountsintegration.h
/usr/include/KPim6/AkonadiAgentBase/akonadi/agentbase.h
/usr/include/KPim6/AkonadiAgentBase/akonadi/agentsearchinterface.h
There is 325 files more in these RPM.