In June 2026, partners of the AIDER project held their first online collaborative meeting to follow up on progress since the Valencia kick-off. The members of the Advisory Board joined the meeting to provide different points of view. The session was focused across all work packages to review early developments in the design and optimization of the Compton camera-based imaging system, discuss ongoing Monte Carlo simulation work, and coordinate next steps across work packages. Partners also used the meeting to address any emerging technical challenges, align on upcoming deliverables, and reinforce communication channels ahead of the next project milestones. The meeting reflected the consortium’s continued commitment to close collaboration as the project advances toward its goal of enabling image-based dosimetry in targeted radionuclide and alpha therapy.