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Schedule of cash and cash equivalents (Details) - EUR (€)
Jun. 30, 2025
Dec. 31, 2024
Cash and Cash Equivalents [Abstract]    
Cash in bank € 4,961,495 € 2,530,549
Cash in short-term marketable securities 211,155 2,047,200
Cash in hand & prepaid cards 3,982 4,000
Total cash and cash equivalents € 5,176,632 € 4,581,749