Scanning probe microscopes (SPMs) are essential for nanoscale research, but access is often limited by proprietary hardware, closed software, and restricted documentation. OpenSPM+ addresses this by developing an open, modular microscopy platform that researchers can freely use, adapt, and improve. During the reporting period, the project advanced toward a more mature technical and collaborative framework, combining hardware development, shared infrastructure, training, and community engagement. We have achieved several key milestones:

• Designed and manufactured the first PCB prototype for the AFM base unit, representing an important step toward replacing the remaining proprietary components in the system. Development of the scanner is also progressing, with improvements to earlier designs currently being implemented before the next testing phase.
• Established an institutional GitHub database for the OpenSPM project, providing a central access point for project resources such as software, hardware schematics, manuals, and technical documentation. This repository also supports collaboration by allowing contributors to share new designs, updates, and developments in a transparent and organized way.
• Implemented shared development and project-management tools, including version-controlled software repositories for both developers and imaging users, as well as a ticketing system for reporting bugs and requesting new features. In parallel, we defined governance rules to support structured contributions from an expanding international community.
• Organized five hands-on workshops to support user training and dissemination: three focused on AFM systems and two on scanning ion conductance microscopy (SICM), another technique within the SPM family. A further AFM workshop for researchers from China is scheduled for October.
• Demonstrated the compatibility of the OpenSPM system with several major commercial microscope platforms, including the DriveAFM from Nanosurf, the CrossBeam 550L SEM from Zeiss, and the Alpha SNOM from Witec. We also integrated confocal and OpenSIM microscopes with the OpenSPM controller in SICM configurations.

The project has generated interest from both academic laboratories and companies, with several groups already building their own systems. We have also completed an updated controller design, simplifying the system and reducing noise. Next, we will refine the AFM base prototype, continue organizing workshops, and develop documentation and online learning resources. Through these efforts, OpenSPM+ is making advanced microscopy more accessible, adaptable, and sustainable through open collaboration.