When talking about food security, perceptions about food availability emerge. Yes, food security is an important point in the existence of a nation, when a nation has sufficient food availability it will support the development and stability of the nation. Indonesia itself regarding food security has been formulated in Law No. 18/2002, Food Security is the condition of fulfilling food for the country and individuals, which is reflected in the availability of sufficient food, both in quantity and quality, safe, diverse, nutritious, equitable and affordable and it does not conflict with religion, beliefs and community culture, to assure healthy, active and productive life sustainably. The next challenge is getting enough food with food supplies obtained within the country, also known as food independence.

The above thinking is linked to the slogan 'Think globally, act locally' echoed among Stube HEMAT Yogyakarta students. They have broad insight regarding food availability, which can be supplied domestically and must not be imported. Then they are encouraged to act locally, meaning practicing to provide enough food according to their capabilities and in their local area. It also enriches their insight, when they return to their home area to map their domestic needs or even food-based entrepreneurial opportunities, by providing food previously supplied from outside area, with food sources fulfilled domestically.

During the discussion, the students tried to identify what they could do, and finally, they chose to plant spinach in the Stube HEMAT Yogyakarta garden located in Wonosari, Gunungkidul Regency. There are several types of spinach that they grow, including green spinach, leaf spinach, and Brazilian spinach. Apart from planting spinach, they also practice making plant irrigation installations using used pipes and buckets. Along the pipe with a length of 3 meters and a diameter of 2 cms, there are holes for water to drip at a certain distance depending on the distance between the plants. This is an alternative solution to the effectiveness of water needs because the water is really distributed to the plants and it is efficient in the water amount needed for watering. The buckets used are a grant from the Kartamantul Drinking Water Supply System (SPAM) office to support Stube HEMAT Yogyakarta activities (16 & 21/1/2024).

It is expected that the students' practical learning method can trigger the emergence of further ideas from students, either when they are still studying in Yogyakarta or when they are back to their hometown by optimizing their yard by planting for sale. However, as a learning process, it certainly does not eliminate the potency of failure. If you experience failure, it becomes material for analyzing why it happened.

In the future, the existence of the Stube HEMAT garden in Gunungkidul will become a learning space for all, students, kids, communities, and those who are interested in a variety of food crops, integration of agriculture - fish - livestock, mushroom cultivation, mini camping, and sustainable food yard management to achieve food security. ***