I’m an Econometrician working in MMM and was hoping someone could offer some insight to help me out. For reference, I come from a background of using in-house modelling tools, EViews and Random Forest ML. I just started a new job and currently there are no MMM capabilities here, so we are looking into what our options are for this. I keep getting referred to LightweightMMM (obviously soon to be replaced with Meridian) as an open-source option for Bayesian MMM, I have never executed a Bayesian approach to modelling but understand it well enough to get by with a bit of practice and reading.