In 2021, the All In initiative was launched to promote diversity, equity, and inclusion (DEI) within the open-source community, and it has now introduced the All In for Maintainers program along with a DEI Resource Hub. This initiative aims to equip open-source maintainers with the necessary training and support to foster inclusive communities, addressing the challenges they face in advancing DEI. The DEI Resource Hub, created collaboratively with open-source practitioners and DEI experts, serves as a centralized repository offering a range of resources focused on inclusive leadership, accessibility, and addressing burnout among maintainers. By inviting contributions from the community, the initiative seeks to continually update this hub to reflect the evolving needs of open-source communities and ensure widespread access to DEI tools. The launch of the DEI Resource Hub marks a new phase for All In for Maintainers, with ongoing updates and future program announcements anticipated to further support diversity and inclusion efforts in open source.