Explains system design concepts and engineering case studies from large companies, such as how Uber built its Genie support assistant and why Shopify moved off React Native. Each issue breaks a topic into a structured walkthrough based on publicly shared details, with diagrams and references.

Q42 Engineering publishes technical write-ups from the Dutch software studio, covering projects such as a museum website system, machine-learning visual search for the Rijksmuseum collection, and Kotlin Multiplatform apps. Readers get practical accounts of how real production systems were designed and built.

Zac Sweers' newsletter shares personal updates alongside technical announcements from his Kotlin and open-source work, including a sabbatical reflection, a new formatter tool called kempt, and the stable 1.0 release of the Metro dependency injection framework. Readers get practical, first-person insight into Kotlin tooling and build performance from a working engineer.

A personal blog from the Cork Hounds project that mixes in-depth mobile development write-ups with dog-friendly winery and brewery travel stories. Readers get detailed technical walkthroughs of OAuth2 PKCE and Capacitor bug fixes alongside first-person trip reports.