Open Source Point of Sale is a web-based point of sale system. The application is written in PHP, uses MySQL (or MariaDB) as the data storage back-end, and has a simple but intuitive user interface.

This issue is preventing our website from loading properly. Please review the following troubleshooting tips or contact us at [email protected]. By submitting your ...

Choosing the right location is important because electric grids can’t always handle new sources of energy or carry electricity from sunny and windy locations to the population centers where it ...

Germany is expected to spend hundreds of billions of euros on its transition towards greener energy sources in the coming years, with the goal of carbon-neutrality by 2045. At the same time ...

Dark energy, the mysterious force thought to be driving the ever-faster expansion of the universe, appears to be changing over time, according to new observations released Wednesday. If dark energy is ...

ADEN/DUBAI - The U.S. hit targets across Yemen in airstrikes overnight, including Saada province, which Yemeni sources say is a long-time hideout for Iran-aligned Houthi leaders, and the Red Sea ...

ANAHEIM, Calif. — Change is in the air. New data strengthen a hint that dark energy, long thought to be constant force in the universe, might change over time. Dark energy explains the observati ...

Last year, we reported on an exciting hint of new physics in the first data analysis results from the Dark Energy Spectroscopic Instrument (DESI)—namely that the dark energy, rather than being ...

Throughout this month, Ukraine has continued to launch debilitating attacks targeting Russia's energy sector as the war escalates amid ongoing peace negotiations. Newsweek's map below illustrates ...

A group of top energy executives is calling on the leaders of the four federal political parties to declare a Canadian energy crisis and use emergency powers to help speed the development of key ...

From laser steel to fuel made from rocks, we look inside the 2025 ARPA-E energy technology conference. Where can you find lasers, electric guitars, and racks full of novel batteries, all in the ...

Enthusiasm for lower carbon emissions is fuelling record investment in energy technologies. In 2024, global energy investment exceeded US$3 trillion for the first time, two-thirds of which went ...