Indonesia frequently experiences earthquakes and tsunami since Indonesia is geologically located in the ring of fire and sits along three major tectonic plates of the world thus this natural phenomena have the potential to continuously occur for example a notable tsunami that hit Aceh in 2004 and killed 160,000 people. This condition is not yet supported by adequate means of disaster mitigation and a tsunami early warning system. The objective of this study was to create an automatic tsunami early warning system that utilizes tsunami potential data from the Indonesian Agency for Meteorological, Climatological and Geophysics’ website to be conveyed through loudspeakers in places of worship whose area will be affected by the tsunami. This study used the Research and Development (RnD) method with the ADDIE (Analyze, Design, Development, Implementation and Evaluate) procedure. This study developed a tsunami early warning system that works effectively with a fast average response time of 13.48 seconds to download tsunami potential information on the BMKG website and proceed it to trigger the loudspeaker at places of worship.

Indonesia adalah negara yang rawan akan tsunami karena terletak di pertemuan tiga lempeng utama dunia seperti Eurasia, Indoaustralia dan Pasifik serta dilewati barisan gunung aktif atau ring of fire. Pembuatan Automatic Tsunami Early Warning Tersinkronisasi BMKG dan Pengeras Suara Tempat Ibadah bertujuan sebagai alat penyampaian adanya potensi bahaya tsunami secara cepat dan otomatis ke masyarakat. Metode yang digunakan adalah penelitian dan pengembangan. Cara kerja Automatic Tsunami Early Warning System menggunakan Arduino Uno dan modul GSM SIM sebagai sistem utamanya. LCD dan diplay dot matrix digunakan sebagai penampil data potensi gempa dalam bentuk tulisan. Data potensi gempa pada website resmi milik BMKG yaitu data.bmkg.go.id/xml sebagai pemicunya yang akan diunduh oleh Arduino Uno dan dikirim menggunakan modul GSM SIM kemudian data potensi tsunami tersebut diparsing dan dikirim ke lokasi-lokasi yang berpotensi terdampak tsunami. Automatic Tsunami Early Warning System telah berhasil menyampaikan informasi kecepatan waktu pengiriman rata-rata sebesar 13,48 sekon.

Education builds a society quality to be creative, innovative. The Ministry of Education and Culture of Indonesia (Kemdikbud) program, “Freedom in Learning”, is expected to be able to create a happy learning atmosphere for the community. It also deals with the innovative Community 5.0 where the community is human-centred and based on technology to improve the human ability to open opportunities for humanity, on the other side to break the sense of stagnation, mutual respect and be able to lead a life active and fun. Therefore, an educational platform “WeShare” was built to promote culture of sharing knowledge to society with the mission of “Together Empowerment”. The research method used Research & Development (RnD) with Waterfall Models such as planning, analysis & design, development, testing, and maintenance programs. The aim of this program is to develop WeShare as a Knowledge Sharing Platform, and to understand the effects and benefits of WeShare program.

The Covid-19 pandemic is changing economic trends at this time. E-commerce grew rapidly in recent years and has become more intense due to the Covid-19 pandemic. E-Commerce Tax provides solutions in the midst of the Covid-19 pandemic. The purpose of this writing is to illustrate the role of the E-commerce Tax on Indonesia's State Revenue during the Covid-19 pandemic in an Islamic Economic Perspective. The method used is descriptive qualitative research with secondary data sources and documentation data collection methods. Based on an analysis of data obtained from journals, books, and the internet in the form of company records or documentation, government documentation or government publications, industry analysis by media, websites and others, it was found that E-commerce Tax has a role in Indonesia's state revenues by increasing state tax revenues during the Covid-19 pandemic. In the Islamic Economic Perspective the tax set in e-commerce is in accordance with Islamic teachings, because it is set on the basis of achieving justice between conventional business actors and also online business actors.