You need to install both the lighthouse
and lcli
commands, so it's recommended to install them from source.
sudo apt update && sudo apt install -y git gcc g++ make cmake pkg-config llvm-dev libclang-dev clang
git clone https://github.com/sigp/lighthouse.git
cd lighthouse
git checkout v5.3.0 # The latest tested version
make
make install-lcli
Or consult the official page for the installation.