The ESLS RF Workshop convenes European experts in the Radiofrequency field to share the latest technological advances and address operational challenges in synchrotron light sources. In parallel, the HarmonLIP Workshop, part of the LEAPS Internal Project, focuses on promoting knowledge exchange and collaborative research among LEAPS members to advance in harmonic bunch lengthening systems in support of current and next-generation ultra-low emittance storage rings. Hosting both workshops together enables cross-disciplinary dialogue and strengthens efforts toward innovation and excellence in accelerator science.