Ask HN: Go to tech stack for building small SaaS in 2024?

The following list was my goto tech stack for building small B2B SaaS at the end of 2019. Any better alternatives?

The app will manage hardware design documents for 50 customers.

fastapi/Python

Postgres

Celery for tasks

Redis for caching

React for frontend (Tailwind)

Hosting: DO app platform, heroku, k8s on AWS

Sentry for error tracking

Stripe for payments

EmailOctopus for newsletter

SendGrid for transactional emails

NameCheap for the domain

auth: Auth0 or Amplify from AWS

AWS S3 for storage

Github for code

Trello, Slack, Google docs