Continuum-subtracted JWST spectrum (black line) in comparison to the PRODIMO-FLITS disc model for EX Lupi. The coloured areas show the contributions of the different molecules to the total model line spectrum. These are therefore cumulative; i.e. the CO₂-spectrum is plotted on top of the C₂H₂-spectrum, the HCN-spectrum on top of the (C₂H₂+CO₂)-spectrum, and so on, such that the top of the water spectrum represents the total continuum-subtracted model spectrum. The model spectrum has been convolved to R = 2500. Furthermore, both the observational data and the model spectrum were slightly box-filtered before plotting in order to increase clarity; see main text. The broad bumps in the observational data (e.g. those around 6.3 µm and in the region 15.5 – 17.7 µm) are likely due to problems with the early data reduction and continuum subtraction.