With PHOENICS, we aim to lay the foundation for a novel cancer treatment that has the potential to improve patients' lives. To ensure that our system is both scientifically robust and meets patient needs, we consulted over 45 experts across academic research, regulation, politics, industry, ethics, and patient advocacy for their guidance. We received crucial input on every stage of our project, from shaping our project idea, implementing our design, to medical applications and translation. Their insights enabled us to adapt our strategies, strengthen our scientific foundation, and ensure that PHOENICS addresses real-world challenges in cancer therapy.