I am interested in phenomenological cosmology driven by multi-probe tests of the dark sectors. The main focus of my research is currently put on developing a new probabilistic standardisation of type Ia supernovae based on Bayesian hierarchical modelling of intrinsic and extrinsic properties of two supernova populations stemming from two progenitor channels. The new standardisation will enable for the first time complete forward modelling of supernova data as well as a quantitative assessment of possible systematic errors in the current measurements with type Ia supernovae including the local Hubble constant determination.