You probably need to enable the `CRB` repo as that's where the package exists. You can do this with `sudo dnf config-manager --enable crb` [jonathan@jon-home ~]$ dnf info libnghttp2-devel Last metadata expiration check: 0:00:06 ago on Mon 19 May 2025 09:34:07 AM CDT. Available Packages Name : libnghttp2-devel Version : 1.43.0 Release : 6.el9 Architecture : i686 Size : 52 k Source : nghttp2-1.43.0-6.el9.src.rpm Repository : crb Summary : Files needed for building applications with libnghttp2 URL : https://nghttp2.org/ License : MIT Description : The libnghttp2-devel package includes libraries and header files needed : for building applications with libnghttp2. Name : libnghttp2-devel Version : 1.43.0 Release : 6.el9 Architecture : x86_64 Size : 52 k Source : nghttp2-1.43.0-6.el9.src.rpm Repository : crb Summary : Files needed for building applications with libnghttp2 URL : https://nghttp2.org/ License : MIT Description : The libnghttp2-devel package includes libraries and header files needed : for building applications with libnghttp2.