Schematic showing how SimAb functions. SimAb has three main modules: the abundance module, the disk module, and the planet formation and migration module. The abundance module takes the total abundance of the disk and the condensation temperature of the most abundant molecules that each atom can form at each temperature. Then based on the integrated assumptions, SimAb calculates the dust-to-gas ratio and the abundances of the solid and gas for different temperatures with regard to the condensation temperatures. Additionally, the disk module calculates the disk temperature using a fixed dust-to-gas ratio and an alpha parameter, while it calculates the gas density using the dust-to-gas ratio that the abundance module calculates. The planet module takes the output of both the abundance module and the disk module together with the initial conditions of the protoplanetary core and calculates the mass and the composition of the planet based on a new dynamical alpha parameter to calculate the required migration rate to form the desired planet.