I started building my partner's portfolio with Next and was very pleased with its simplicity. However I had to switch to Gatsby because of its superior support

I started building my partner's portfolio with Next and was very pleased with its simplicity. However I had to switch to Gatsby because of its superior support for responsive images. With Next I couldn't find a way to cache all the generated variants of images between builds, which made the site take more than 5 minutes to build. Gatsby ecosystem seems more mature also.