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 Cryptocurrency price prediction, particularly for highly volatile assets like Solana (SOL), is a crucial challenge in time series data analysis in digital finance. This study aims to compare the performance of the XGBoost machine learning algorithm with the Temporal Fusion Transformer (TFT) deep learning model in predicting Solana's daily closing price. The dataset used consists of historical Solana price data and network fundamentals data in the form of Total Value Locked (TVL). The research process includes data preprocessing, dividing training and test data, model training, and evaluation using the Root Mean Squared Error (RMSE) metric. The results show that using the same-day price feature has the potential to cause target leakage, resulting in invalid prediction accuracy. In testing using pure historical data without data leakage, the XGBoost model performed better than TFT with an RMSE of 4.27, while TFT produced an RMSE of 18.59. Furthermore, the integration of network fundamentals data in the form of TVL did not improve prediction accuracy and even caused a decrease in performance for the XGBoost model with an RMSE of 7.10. The results of this study show that the use of historical price action features is more effective than fundamental network indicators for short-term daily Solana price predictions.

Indonesia is in an earthquake-prone region, therefore, designing building constructions that can withstand seismic loads is crucial in civil engineering. Reinforced concrete shear walls are one of the vertical structural fundamentals that are effectively used in multi-story buildings to withstand lateral forces due to earthquake and wind loads. Structures that use shear walls can increase stiffness and reduce horizontal deviations (deflections) of buildings, which contribute to the stability and safety of structures based on the SNI 1726:2019 standard. This study aims to analyze the effect of shear wall configurations on deviation and torsion requirements in multi-story building planning. The study object is a 6-story reinforced concrete building model in a specific earthquake zone. The design and modeling were performed using structural analysis software, taking into account columns, beams, slabs, and shear walls. The analysis results show that optimal placement of shear walls at the building edges significantly reduces horizontal drift, torsion, and shear forces, and improves the structural performance level compared to structures without shear walls or those with less effective placement. Structures with shear walls have optimal stiffness in absorbing lateral forces, making them more resistant to damage from the planned earthquake.

This article examines the implementation of a sharia financial literacy education program aimed at supporting community economic development at the Balai Perkumpulan Sub PPKBD Tambakkemerakan, Krian, driven by the persistently low level of community literacy regarding Islamic finance concepts and practices, which has the potential to impede the optimization of Islamic principles-based economic well-being. Employing the Participatory Action Research (PAR) method, this study engaged community members actively throughout the processes of problem identification, program implementation, and evaluation, with activities conducted through socialization sessions, interactive discussions, and practical demonstrations of sharia-compliant financial management in real-life contexts. The findings indicate a measurable improvement in community comprehension of Islamic finance fundamentals, including the prohibition of riba (usury/interest), the importance of financial planning, and the utilization of sharia-compliant financial institutions, alongside observable attitudinal shifts toward more prudent and Islamically normative financial behavior. These outcomes suggest that the program contributes positively to fostering community economic independence and strengthening the application of Islamic economic principles at the household level.

Digital marketing has become a vital tool for business growth today, especially for housewives running small businesses. However, challenges such as a lack of technical knowledge and limited access to digital devices often hinder them from competing in the modern marketplace. In response to this phenomenon, the Community Service (PKM) initiative in Tamallayang Village, Bontonompo, was specifically designed to strengthen the capacity of housewives through education on the use of marketing technology to advance their businesses. This program employs a participatory training model that emphasizes two-way discussions and real-life case studies, allowing participants to understand and directly apply material such as digital marketing fundamentals, WhatsApp optimization, and content creation techniques. The success of this program is reflected in the substantial increase in competency and growing optimism of the participants in managing their businesses in the digital realm. The mothers now not only master the theory but are also able to execute the strategies they have learned to expand product exposure and boost sales figures. The benefits of this activity also have broad implications for strengthening the family economic structure and overall social welfare in the region. Going forward, the successful implementation of digital marketing strategies in Tamallayang Village is expected to become a prototype for empowering MSMEs in other areas, while also emphasizing that technological adaptation is a mandatory step in strengthening business competitiveness in the current era.

Abstract. The rapid growth of social media has significantly changed communication patterns, self-expression, and employment opportunities, especially among younger generations. However, among vocational high school students, social media use is still largely focused on entertainment and has not been optimally utilized for skill development, personal branding, or economically productive activities. Addressing this issue, a community service program was conducted to enhance the knowledge, understanding, and practical skills of students at SMK YBPK Pare in creating creative, structured, and relevant social media content in line with the demands of the digital era in 2024. The program was implemented through the delivery of conceptual materials on social media fundamentals, content planning strategies, and effective content creation techniques. These materials were strengthened through interactive discussions and hands-on practice using smartphones and accessible editing applications. The participants included 40 students from grades X, XI, and XII, representing Generation Z with high social media usage intensity. The results showed improved student understanding of the purpose of social media, basic digital content concepts, and communicative content creation techniques. Students were able to produce simple promotional content to support school branding. In addition to technical skills, the program increased awareness of social media as a tool for self-development, digital literacy, and future employment or entrepreneurial opportunities, thereby contributing positively to students’ digital competencies and work readiness.