PeleLM depends on several separate GitHub repositories, each under active development. This can significantly complicate the required effort to keep all the required software up to date and internally compatible. Recently, we moved the Pele codes to a new software management style based on git "submodules", which dramatically simplifies the initial install/build/run procedure:
git clone --recursive https://github.com/AMReX-Combustion/PeleProduction.git cd PeleLMruns/FlameSheet2D make -j 12 mpiexec -np 8 ./PeleLM2d.gnu.MPI.ex inputs.2d-regt
The PeleLM User's Guide continues to be the best place to learn more about the code. You can also ask for help by opening up an issue on the PeleLM GitHub webpage.