PT Koki Teknologi Indonesia

Based on my understanding, you want to do the migration(creating schema, table, etc), if that the case you can use GORM. The library has a features for migration and also it support not only postgre, the other relational db like mysql, cockroach db, etc.

But if i may suggest, the best way to setup the table, etc is by doing directly on the database. why? there are other things that you need to concern on creating a table and column, like the index, constraint, composite index, etc. some of this things will be missed by using the migration tool, if not carefully.

I suggest to choose React and ExpressJS, since it is based on the same programming language (Javascript) -more cost efficient and easy to find resources, Django is using python programming language. And talking about scalability it is depends on your application architecture.