Ask HN: How does one start a web app nowadays? (2021)

Hello HN, I am a professional software engineer, but coding stopped being my full-time job in 2015. Now I am quite unsure what is the best way to start a web app today. I need to create a mostly CRUD-only app: an E-commerce website with an admin interface. It is important to have the code, since some custom features are required + owning IP matters for me.

Stack-wise, I like React and relational databases.

I suppose there are at least two possible solutions: 1) templates, like themeforest, 2) starter kits, like create-react-app.

Is there anything else? How would one start a web app today?

Thanks