If you could choose only one tech stack for the rest of your life, what would you choose?

Anyday the FERN🌿 stack

1. Firebase - literally handles everything. Authentication, Storage, Cloud functions etc
2. Express - Combine with firebase functions to make easy APIs that your frontend can access. Every endpoint can have a particular function and because its in firebase functions you use it all in one place, so simple
3. React - tbh I just Next a lot now but its all react so here it is. Easy to create a web app with it in just a few minutes. Styling and making it look good gets hard sometimes so I use a lot of UI libraries like material ui.
4. Node - Its what you write all your firebase functions in so yeah.

Authentication and Storage deserve to be here too, Ill come up with some good names

I just seem to always come back to Rails

Language - Typescript
Backend Framework - Nestjs
Database - Postgres
Frontend Framework - Probably Vue

Programming Language: Python
Framework: Django
Cloud: AWS
Database: Postgresql
Queues: Celery
Broker/Cache: Redis
Front: React

You literally can create any application/product with this, 90% free, you just need your knowledge and a host.

I guess that it is difficult to choose ideal database here.
Node,
Express or Koa2 or own handmade koa-like Iibrary with type-safe contexts,
React or own handmade JSX-compatible micro-libary
Nunjucks for server-side html templates, including emails
Not sure about email delivery service... AWS SES may be?
Database is hard to choose between Spanner and MySQL/Postgres/Mongo, so assume anything used together for different tasks?
Files/blobs storage - Google Storage? Have most experience with it.
Webpack for scripts building/bundling.
Typescript for server/client scripts.
Electron for desktop apps.

Supabase
Next.js
React
Node.js

Python & Java

MERN 100%

Phoenix - Backend MVC framework
Elixir - The language with all the benefits of Erlang
Tailwind - Nice CSS easy just with html classes
React.js - Doesn't need presentation

I love to use P.E.T.R., but the normal way its P.E.T.A.L. (Alphine.js and LiveView in last), i love live_view but i prefer React.js using the browser side rendering live updates with phoenix_channels, its more optimal

Just C is enough