If you have used Prisma 7 for the first time and seen something like this: const adapter = new PrismaBetterSqlite3 ({ url : databaseUrl }); const prisma = new PrismaClient ({ adapter }); Enter fullscreen mode Exit fullscreen mode you might be wondering: what is this adapter thing, why do I need it, and what happens when I want to use PostgreSQL or MySQL in production? Let us walk through it. The real world version of an adapter Imagine you bring your US laptop charger to Europe. Your charger has flat US prongs. The wall has round EU sockets. They do not match. So you buy a small plug adapter. One side accepts your US prongs, the other side fits the EU wall. You did not change your laptop. You did not change the wall. The adapter sits in the middle and translates between two things that were never designed to fit together. That is exactly what a software adapter does. It connects two pieces that speak slightly different "languages" without forcing either side to change.…