In this work, we have presented JOYCE3.0, a software package designed for the automated generation of specific and accurate intramolecular force fields suitable for classical simulations, reliably derived from reference QM descriptions. The most relevant features of the new JOYCE3.0 parameterization protocol have been summarized and discussed through seven distinct applications, each characterized by a remarkably diverse molecular structure and chemical properties. In addition to the successful validation of each parameterization against a target QM description, the quality of the QMD-FFs generated by the JOYCE3.0 protocol was evaluated by comparing their outcomes with both general-purpose models and experimental measurements.