Phoenix Framework vs Rails vs Spring-Boot

Hi Community! Trust everyone is keeping safe. I am exploring the idea of building a #Neobank (App) with end-to-end banking capabilities. In the process of exploring this space, I have come across multiple Apps (N26, Revolut, Monese, etc) and explored their stacks in detail. The confusion remains to be the Backend Tech to be used?

What would you go with considering all of the languages such as Node.js Java Rails Python are suggested by some person or the other. As a general trend, I have noticed the usage of Node with React on the front or Node with a combination of Kotlin and Swift. Please suggest what would be the right approach!

As a small team, we wanted to pick the framework which allowed us to move quickly. There's no option better than Rails. Not having to solve the fundamentals means we can more quickly build our feature set. No other framework can beat ActiveRecord in terms of integration & ease-of use. To top it all of, there's a lot of attention paid to security in the framework, making almost everything safe-by-default.

Since I came from python I had two choices: #django or #flask. It felt like it was a better idea to go for #django considering I was building a blogging platform, this is kind of what #django was made for. On the other hand, #rails seems to be a fantastic framework to get things done. Although I do not regret any of my time spent on developing with #django I want to give @{#rails}|topic:null| a try some day in the future for the sake of curiosity.