We have developed a GaMD-WE package for users to run GaMD and prepare initial states for WE, specifically for the Weighted Ensemble Simulation Toolkit with Parallelization and Analysis (WESTPA). The current package is not fully integrated with WESTPA, i.e., user needs to use the GaMD-WE package for the GaMD portion and run a WESTPA simulation separately for the WE portion using initial states from the GaMD-WE package, but we plan to make it fully integrated in the future. The GaMD-WE package is fully customizable, i.e., the desired force fields, water models, and others can be added, and it follows a series of scripts as the following.