I fixed the data encryption in #speechzap and found out that in NestJS all injected dependencies are singletons by default, which led to data being encrypted/decrypted with random users' private keys due to my service's caching not considering the user ID.

Setup Resend/react-email sending through NestJS #accesscache

learn about Command query responsibility segregation docs.nestjs.com/recipes/cqrs

bootstrap nest.js app, and check its capabilities in prpduction