Open source software (OSS) relies on innovative funding models blending traditional approaches with blockchain technology and NFT mechanisms.Blockchain's transparent ledger and NFT incentives reshape open source ecosystems, providing sustainability and inclusivity.Funding models for OSS include corporate sponsorships, community donations, grants, and dual licensing.Blockchain offers transparent financial tracking and NFTs create unique tokens for contributions and governance.Challenges like funding volatility, developer burnout, and regulatory uncertainties impact OSS sustainability.Corporate sponsorships, crowdfunding, grants, and NFT incentives form diverse OSS funding strategies.Smart contracts, DeFi protocols, and NFT rewards enhance transparency, governance, and community engagement in OSS.Challenges include developer burnout, funding unpredictability, and regulatory complexities in integrating blockchain.Future trends include increased blockchain integration, evolving NFT applications, hybrid funding models, and ethical funding practices.Innovative funding models aim to ensure transparency, sustainability, and inclusivity in the open source community.