Crypto-backed lending — using cryptocurrency as collateral for loans denominated in fiat currency or stablecoins — represented one of the most ambitious commercial applications of digital assets during the crypto boom of the 2017-2021 period. Nexo was founded in Sofia in 2018 to build a platform offering exactly that, combining instant crypto-backed credit lines with savings products that paid yield on deposited cryptocurrency. The proposition appealed to crypto holders who wanted liquidity without selling their digital assets and to investors looking for returns on crypto holdings that exceeded what traditional savings products offered. Nexo grew rapidly during the bull market years, building a substantial user base across multiple jurisdictions and accumulating significant assets under management. The crypto market correction of 2022 and the broader collapse of crypto lending platforms including Celsius and BlockFi created a difficult operating environment for the entire category, with regulatory scrutiny intensifying across multiple jurisdictions. Nexo navigated that period with continuing operations and has continued evolving its product range as the regulatory environment under MiCA and similar frameworks has clarified. In the broader European crypto landscape, Nexo represents the lending and yield-product category that is being substantially reshaped by post-2022 market conditions and regulatory developments.