SOPHIE measurements of EV Lac, reduced by LBL shown in blue. SPIRou measurements, reduced by LBL shown in red. Top panel: full dataset of SOPHIE and SPIRou RVs. Bottom panel: EV Lac RVs phase-folded on the rotation period, for SOPHIE (RMS = 95.7 m/s, mean error = 2.8 m/s) and SPIRou (RMS = 6.3 m/s, mean error = 2.1 m/s) concomitant seasons only (2020 and 2021). Note: these data were reduced using the entire LBL pipeline of Artigau et al. (2022), including the statistical line rejections.