"Volksgeld" is not a commonly used term in German, but it can be interpreted as "people's money." In contemporary contexts, it might be used to refer to concepts like public funds or money that belongs to the people. In the context of Bitcoin and other cryptocurrencies, it can also refer to the idea of decentralized currency that is not controlled by any single government or entity, which is often promoted as a financial system by and for the people.
Given Trump's participation in the Bitcoin conference and discussing "Volksgeld," the connection seems to be about embracing decentralized financial systems that empower individuals rather than central authorities. This ties into broader themes of financial autonomy and innovation, which are significant in the cryptocurrency community.
If you have a specific context or deeper meaning you’re referring to, please let me know so I can provide a more accurate response.