The dilemma of choosing the right tool for a long-term project is understandable. We are running an open source React framework called refine for building Enterprise B2B apps like admin panels, internal tools and dashboard.

It's designed to be ensuring that projects remain maintainable even as time goes by. With its headless architecture, it can be used with custom styles or any UI library and data services. Maybe it helps you somehow

You can check the examples with source code: https://refine.dev/docs/examples/

Repository: https://github.com/refinedev/refine