COMPOSITE-Stem. - Kyle Waters; Lucas Nuzzi; Tadhg Looram; Alessandro Tomasiello; Ariel Ghislain Kemogne Kamdoum; Bikun Li; Damien Sileo; Egor Kretov; Francesco Fournier-Facio; Georgios Soloupis; Haile Kassahun; Hew Wolff; et al. (CoRR, 2026)