An in-depth exploration of financial planning, sustainable funding, and the challenges of unpaid volunteer labor in open source projects. This article delves into the evolution of financial tools such as GNUCash, Ledger, Odoo, and ERPNext, and examines their applications in blockchain and NFT projects. It highlights the importance of transparency, community collaboration, and innovative funding models like decentralized finance (DeFi) and smart contracts to ensure long-term project viability.