Book excerpt: We are delighted to provide the proceedings of the sixth International Conference on Applied Engineering (ICAE), 2023, which was conducted in Batam on November 7th, 2023. This conference, which has as its theme "Synergizing Green Economy, Sustainable Development, and Digitalization for a Prosperous Future," is a significant international assembly that seeks to integrate technological innovation, economic expansion, and environmental sustainability. An ensemble of stakeholders, comprising policymakers, entrepreneurs, and experts, assembles to examine the mutually beneficial correlation that exists between digital advancements and a green economy. The acceptance rate for ICAE 2023 stands at 25%, leading to the selection of 28 substantial papers. The conference featured three distinct tracks: Informatics, Electronics, and Mechanicals. Two keynote addresses were delivered in conjunction with the outstanding technical paper presentations at the technical program. The keynote addresses were delivered by Dr. Ir. Basuki Rahmatul Alam, Chair of the IEEE EDS Indonesia Chapter and Senior Member of IEEE, and Dr. MK Radhakrishnan, Technical Consultant at NanoRel LLP in Singapore and Vice President of IEEE EDS. Coordination effectiveness with the steering committee was crucial to guaranteeing the conference's success. We wish to convey our profound gratitude for their consistent guidance and support that accompanied the entire undertaking. The ICAE Chair Committee deserves special recognition for their conscientiousness in finalizing the peer-review procedure of technical papers, which ultimately led to the creation of a technical program of exceptional quality. Furthermore, we would like to express our sincere appreciation to the Conference Managers and all the authors who submitted their papers for the ICAE 2023 conference for their invaluable assistance. Additionally, we appreciate the assistance of the EAI staff in facilitating the production of this publication.