Overview of the JWST observations of CEERS-1019 at z = 8.6782. Top: 1D and 2D low-resolution NIRSpec/PRISM spectra (black) and 1σ uncertainty (grey). Vertical dashed lines (green) mark the position of well-detected nebular emission lines. The X-axis in the bottom and top panels refer to the observed (μm) and rest-frame wavelengths (Å), respectively. Bottom right: NIRSpec/G395M medium-resolution spectrum of CEERS-1019. Bottom left: JWST NIRCam cutout of CEERS-1019 in the F200W filter. CEERS-1019 is composed of three resolved clumps. The inferred positions of the NIRSpec MSA shutters are overlaid in blue.