Comparison between real and simulated data at different stages of the reduction and analysis using Eureka! (Bell et al. 2022). Top panel: waterfall plots from stage 3. Centre panel: transit light curve as a function of wavelength, offset for clarity and produced with the chromatic package available at https://github.com/zkbt/chromatic visualisation tool. Bottom panel: raw and detrended white light-curve with the best-fit model resulting from the optimisation performed in stage 5 (red curves) and the corresponding Allan plot, showing the evolution of the root-mean-square (RMS) of the light curve as a function of the binning size. The photon-noise limit is almost reached in both cases, attesting to the Gaussianity of the residuals.