This talk covers the three most used Architecture Patterns in modern Software Development: Modular Monolith, Microservice, and Serverless. I will give a short description of each of them including their pros and cons. Then I will give practical tips on when to use one of them as well as when not to use one of them.        The high-level overview of Modular Monolith, Microservice, and Serverless Architecture. Also, the audience will know what use case they should use and what use case they should not use them. [h2][b][url=https://docs.google.com/presentation/d/1ukx11Puo-Zk5iiMpXsx-Y_JMi3pKKm6h/edit?usp=sharing&ouid=110009865166381850128&rtpof=true&sd=true]Slides[/url][/b][/h2]