For hosting recently started using Render which is even faster to setup than Heroku, 5 minutes from signup and I had everything setup with ssl and custom domains.
Flask, MySQL, Bootstrap, jQuery
I try and avoid JavaScript but if I use it I usually write vanilla JS and avoid package managers and build pipelines.
Frontend: NextJS + Tailwind Backend: Flask Ops: Heroku + addons
I meld the two using the JAMstack design in Nginx where the backend is exposed on /api path and the static site is hosted from the dist directory on the root path of the site. And while I use Go in production, I typically use Python for making proof of concepts or writing any quick glue scripts.
Pytorch/k8s/AWS fargate for Deep learning api
Clingo/Prolog for symbolic AI
React.js/flexbox/sass for frontend
SwiftUI for iOS
React: stable, doesn't break, probably lindy.
Tailwind css: it just works.
Postgresql, elasticsearch, clickhouse, redis.
Namecheap, digitalocean.
FastAPI + Postgres backend
React + TS for web
Edit: some pretty exotic stacks in here! Cool to see.
Written in TypeScript.