Superconducting circuits have emerged as one of the most versatile platforms in the development of hardware for quantum information applications. Exploring new superconducting circuits and optimizing existing ones naturally relies on accurate modeling. In this talk, I will focus on the open-source package "scqubits" which offers functionality that simplifies the simulation of superconducting qubits and coupled circuit QED systems. A recent addition to the package facilitates automatic circuit quantization of custom circuits. I will highlight the ideas behind automating this analysis and give an outlook on the challenges yet to be addressed.