Banque N26
https://mag.n26.com/practical-example-using-reactive-clean-architecture-approach-8a2436ea76b4
https://mag.n26.com/n26-is-the-mobile-bank-341ecf456a97
https://mag.n26.com/getting-started-with-bob-7aa6488ad3e9
https://github.com/n26/N26AndroidSamples