Here is another open-source alternative: https://github.com/rashadphz/farfalle (Disclaimer: I made it)
43 karma · joined March 5, 2021
Check out a live demo here: https://www.farfalle.dev/.
The code is fully open-source on Github (https://github.com/rashadphz/farfalle/) The repository includes instructions on how to run the project locally, along with one-click deploy buttons for Vercel and Render.
I'd appreciate any feedback!