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Revenue (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Revenue [Abstract] |
Schedule of revenue recognized |
|  | 2022 |  |  | 2021 |  |  | 2020 |
|  | EUR |  |  | EUR |  |  | EUR |
Revenue recognized over time |  |  |  |  |  |  |  |  |
Consultancy revenue |  |  | 162,407 |  |  |  | 420,167 |  |  |  | 214,756 |

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