Medusa

In our experience, most e-commerce solutions for building shopping websites usually fall into the 80/20 trap — we can easily build 80% of what we want but can't do anything about the remaining 20%. Medusa offers a good balance. It's a highly customizable open-source commerce platform that allows developers to create unique and tailored shopping experiences that can be self-hosted or run on Medusa’s platform. Built on Next.js and PostgreSQL, Medusa accelerates the development process with its comprehensive range of modules — from basic shopping cart and order management to advanced features like gift card modules and tax calculation for different regions. We've found Medusa to be a valuable framework and applied it to a few projects.