I'm a Full-Cycle Cross-Platform Engineer who loves building apps from scratch to store release, leveraging AI agents.
I use Flutter and Expo to build and operate my own mobile products, as well as collaborate on team projects.
- π Iβm currently working on: Cross-platform applications (iOS, Android, & Web) using Flutter and Expo.
- π± Iβm currently learning: Best practices for cybersecurity and scalable architectures. Specifically exploring:
- AI & Cybersecurity: Google Gemini Enterprise Agent Platform, Cloudflare
- Product Intelligence & Monetization: Google Analytics, Google Adsense, Google AdMob, Google Ad Manager
- π¬ Ask me about:
- Cross-Platform Development (Mobile & Web): Flutter, Expo
- Backend & Infrastructure: Google Compute Engine, Firebase
- CI/CD & Automation: GitHub Actions, Fastlane
- Release & Distribution: Google Play Console, App Store Connect
- π« How to reach me: You can find my SNS accounts with the handle name sangraal123.
- π± My Apps: η‘ιθ³ β Brain Infinity (iOS / Android)
- Version 1.1.4 refreshes all seven colonies, improves reasoning explanations and automatic question progression, adds review filters by subject, and improves loading. Includes 900 reasoning questions, an achievement feed, and optional Google/Apple-linked cloud saves.
- Google Play
- App Store
- Product page β the browser game has been retired.
- π οΈ In development: ζΌ’εθ³ β Kanjinou (iOS / Android, Expo)
- Daily kanji puzzles featuring εειη, four-character idioms, and cued word recall.
- Product page and sample puzzle
- β‘ Fun fact: I handle the entire app lifecycle myselfβfrom UI implementation and Firebase backend integration to CI/CD automation and cross-platform releases!


