We first implemented the "Linkage" versions of the DPPC and POPC C36/LJ-PME models to GROMACS-compatible formats with TopoGromacs 30 starting from the CHARMMcompatible files downloaded from ~jbklauda/ff.html. This version of C36/LJ-PME presents minimal changes from the C36 lipid model, and only the non-bonded parameters of the glycerol and ester groups were optimized, along with changes in the respective dihedral parameters. Thus, for both DPPC and POPC, a total of 17 partial charges, 2 Lennard-Jones parameters, and 33 dihedrals di↵er from their parametrizations in the standard C36 model. The modified GROMACS-compatible topology files are available in the SI.