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Leases - Schedule of Right-of-Use Assets (Details) - EUR (€)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Schedule of Right-of-Use Assets [Abstract]      
Balance beginning € 35,311 € 54,935 € 94,106
Additions from lease modification 42,644 41,944 19,353
Depreciation (45,162) (61,568) (58,524)
Cancellation of lease (11,349)    
Balance ending € 21,444 € 35,311 € 54,935