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Supplemental Cash Flow Information - Schedule of Non-Cash Investing and Financing Activities (Details) - EUR (€)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Schedule of Non-Cash Investing and Financing Activities [Abstract]      
Reallocation of opening deficit to reserve € (1,028,578) € (267,222)
Recognition of right-of-use assets from lease extension 41,944
Recognition of right-of-use assets from lease addition 19,353 109,506
Conversion from related party loan to capital contribution 600,000
Derecognition of right-of-use assets € 34,777