The back-end is Node.js, Express, and MassiveJS for DB access, while the front-end is Vue 3.

I'm really happy with my choice of MassiveJS especially, instead of an ORM, since it allows me to make Models in Nodewood as simple JavaScript objects that can be populated either from the database or from API responses. This means that you can use the same model in the front-end and the back-end, with the same business logic, the same validation logic, etc. Saves a lot of time writing (and maintaining) a lot of code in two or more places!