Uploaded January 2026 | Updated September 2026, 3 weeks ago
Master React Native alongside me https://cwb.sh/rn
Learn the right way to handle environment variables in React Native and Expo. Understand what should be public, why you should never store secrets in your mobile app, and how to use server-side code for sensitive operations.
- Pro membership with production codebases: https://cwb.sh
π¬ Newsletter: https://cwb.sh/newsletter?r=yt
π¬ Join the Discord community: https://cwb.sh/discord
π¦ Follow Beto on X: https://x.com/betomoedano
π» GitHub: github.com/betomoedano
πΌ LinkedIn: linkedin.com/in/betomoedano
- Aqua Voice (free month): https://cwb.sh/aqua
- Warp Terminal: https://cwb.sh/warp
- Raycast: https://cwb.sh/raycast
For other ways to support my work, please consider:
- GitHub Sponsors: github.com/sponsors/betomoedano
- Become a Code with Beto channel member: https://cwb.sh/join
βοΈ Timestamps βοΈ
00:00 Intro
00:19 Understanding Client-Side Apps
00:48 Never Put Secrets in Mobile Apps
01:07 Public Keys Are Different
01:31 EXPO_PUBLIC Prefix Explained
01:51 Use Server-Side Code for Secrets
02:21 Final Rule & Recap
#ReactNative #Expo #mobileappdevelopment
Master React Native alongside me https://cwb.sh/rn
Learn the right way to handle environment variables in React Native and Expo. Understand what should be public, why you should never store secrets in your mobile app, and how to use server-side code for sensitive operations.
- Pro membership with production codebases: https://cwb.sh
π¬ Newsletter: https://cwb.sh/newsletter?r=yt
π¬ Join the Discord community: https://cwb.sh/discord
π¦ Follow Beto on X: https://x.com/betomoedano
π» GitHub: github.com/betomoedano
πΌ LinkedIn: linkedin.com/in/betomoedano
- Aqua Voice (free month): https://cwb.sh/aqua
- Warp Terminal: https://cwb.sh/warp
- Raycast: https://cwb.sh/raycast
For other ways to support my work, please consider:
- GitHub Sponsors: github.com/sponsors/betomoedano
- Become a Code with Beto channel member: https://cwb.sh/join
βοΈ Timestamps βοΈ
00:00 Intro
00:19 Understanding Client-Side Apps
00:48 Never Put Secrets in Mobile Apps
01:07 Public Keys Are Different
01:31 EXPO_PUBLIC Prefix Explained
01:51 Use Server-Side Code for Secrets
02:21 Final Rule & Recap
#ReactNative #Expo #mobileappdevelopment








![Apple now creates videos like this one for your new apps! π [link π] #reactnative #mobiledev
Apple now creates videos like this one for your new apps! π [link π] #reactnative #mobiledev Apple now creates videos like this one for your new apps! π [link π] #reactnative #mobiledev](https://i.ytimg.com/vi/_eizJn3f6tY/mqdefault.jpg)

