Representation of the decision tree used to process all entries in the PYBDSF catalogue lying in the Legacy Survey sky area. Following this workflow a decision is made for each source whether to: (i) make the optical and IR identification, or lack thereof, through the LR method (blue and red outcomes respectively); (ii) process the source in RGZ(L) (green outcomes, including direct RGZ(L) post-processing); (iii) reject the source as an artefact (grey outcomes). The key parameters are defined in Table 1. The number and percentage of PYBDSF sources in each final bin are shown for each final outcome. Some faint sources are not processed further (orange outcomes); these are discussed in the text.