[matijash]

As others already mentioned, the best thing would be if it is possible to reuse the non-UI code (so logic & algorithms) and put it on a server behind an API.

On the other hand, if the code is not written in the modular fashion and things are tightly coupled, it might be harder than writing everything from scratch (of course, that depends a lot on the volume of the code).

As PaulHole suggested, writing a test suite would also be very important to make sure your code works as expected - that will save you a lot of trouble in the long run.

RoR seems like a good and stable choice for the backend, do you plan to use something like React/Vue/Angular on the frontend?

On the side note, I am working on a project that would hopefully make app dev easier and more sustainable in the long run, but unfortunately it is still in the very early stage of development. Would appreciate your feedback though! https://wasp-lang.dev/

[PaulHoule]

I think systems like WASP will proliferate. React, Vue, Svelte and similar frameworks have gotten people used to code generation, transpiling, etc. Technically, people are ready for something that blurs the front-end/back-end distinction.

[matijash]

Thank you very much for your feedback PaulHoule! Feedback like this motivates us to keep going :)