TIL: OpenSSL can serve HTTPS
Developer Note July 29, 2026 2 min read
Use OpenSSL's built-in test server to run a temporary HTTPS endpoint while debugging TLS.
OpenSSLTLSDebuggingCommand Line
Blog
Technical articles, practical notes, and lessons learned from mobile development.
Are .mobileconfig profiles useful for iOS developers?
July 17, 2026 6 min read
A developer-focused look at iOS .mobileconfig profiles: what they configure, why a profile containing only a root CA added no value, and when to use one.
iOSCapacitorConfiguration ProfilesDeveloper Tooling
Add iOS Simulator root cert with simctl
Developer Note July 6, 2026 4 min read
Add a local root CA to iOS Simulator for HTTPS dev servers, Capacitor live reload, and proxy debugging.
iOSSimulatorCertificatesCapacitorIonicDebugging
Start mobile automation with Appium
December 30, 2025 8 min read
Learn why Appium is a powerful choice for mobile testing, how it differs from WebdriverIO, and how to get started with hybrid app testing.
MobileTestingAppiumWebdriverIOiOSAndroidAutomation
Fix stuck Capacitor storage on iOS
August 28, 2025 3 min read
Fix and prevent stuck secure storage data in Capacitor iOS apps. Learn why iOS Keychain persists after app deletion and how to handle it.
iOSCapacitorSecurityMobileKeychain
JavaScript closure memory leaks
August 15, 2024 3 min read
Understanding and preventing memory leaks in React caused by closures and nested functions. Practical approaches with WeakMap, WeakRef, and manual cleanup.
JavaScriptReactPerformanceMemory Management
Native tests for iOS Expo modules
January 9, 2024 2 min read
Learn how to test native code in React Native apps using Expo modules with native iOS testing frameworks.
iOSReact NativeExpoTestingSwiftObjective-C
Fix port in use with lsof
Developer Note May 20, 2023 1 min read
Quick solution to kill processes using specific ports on macOS and Linux without restarting your computer.
macOSLinuxDevOpsCommand Line