Cutting Annual Server Costs by 80% and Building an iOS App with a High Revenue

Summary of my bookmarked links from Oct 22nd, 2022


  • How we reduced our annual server costs by 80%

    Zsolt Varga, the tech lead and general manager at, discusses how Prerender saved $800k by migrating away from AWS and building their own infrastructure. Prerender is a tool that caches and prerenders JavaScript pages, providing pure HTML files for search engines to crawl. By moving their cached pages and traffic to their own servers, they were able to cut costs by 80% in just over three months. The migration was carefully planned and executed to ensure minimal downtime and service degradation. The success of the migration allowed Prerender to reduce monthly server fees by 80%.

  • Build an iOS App with a revenue 1,338$ / mo

    This tutorial provides a step-by-step guide for software developers interested in learning advanced Swift and building an app from scratch. The tutorial focuses on implementing an MVVM architecture and integrating in-app purchases. It covers various architectural patterns such as MVVM, Clean architecture, and Redux, and explains concepts like data binding and dependency injection. The tutorial also delves into VPN (Virtual Private Network) implementation on iOS using protocols like IKEv2 and IPsec. It includes coding examples and explains the organization of different layers in the app's structure.