deb http://apt.llvm.org/noble/ llvm-toolchain-noble-17 main
deb-src http://apt.llvm.org/noble/ llvm-toolchain-noble-17 main
deb http://apt.llvm.org/noble/ llvm-toolchain-noble-18 main
deb-src http://apt.llvm.org/noble/ llvm-toolchain-noble-18 main