Marc 🦇
banner
mrousavy.com
Marc 🦇
@mrousavy.com
CEO of @margelo.com and react-native core contributor. I do lots of C++ and Swift
github.com/mrousavy
Pinned
got it, what now?
Reposted by Marc 🦇
Nitro has become the foundation for some of the most powerful React Native libraries today. At React Universe Conf 2025,
@mrousavy.com (@margelo.com) shared Nitro’s journey & what’s next with Nitro Image and VisionCamera.
▶️ youtu.be/25_FWxNh92A
The Past, Present & Future of Nitro | Marc Rousavy at React Universe Conf 2025
YouTube video by Callstack
youtu.be
September 19, 2025 at 1:57 PM
Hey @grebenyuk.bsky.social - I'm looking for the Image-Frameworks-Benchmark repo you linked in your Nuke landing page to see an up-to-date comparison between SDWebImage and Nuke.
Is that repo gone?
June 30, 2025 at 1:09 PM
Nitro almost has 1k stars... 🤩
February 23, 2025 at 3:35 PM
another day, another react-native core PR merged
February 20, 2025 at 9:31 AM
Another PR by me to Bluesky merged 🥰
February 17, 2025 at 3:46 PM
react-native-mmkv is still the fastest storage solution for React Native! 🔥
Seems like MMKV is still king!

But also, props to AsyncStorage went from 240ms down to 50ms since React Native 0.68!
January 12, 2025 at 3:37 PM
Reposted by Marc 🦇
Which storage solution is best for your @expo.dev project?

I took @mrousavy.com benchmark repo, moved it to expo, and added expo-sqlite too.

Results 👇
January 12, 2025 at 3:33 PM
use MMKV! 😉🚀
The cool #buildinpublic thing of the day.

I benchmarked energyxp.app startup time on different devices and switched from async storage to mmkv.

60% faster on my iPhone!

@mrousavy.com Kudos, that's some amazing work!
December 26, 2024 at 2:34 PM
if you know this logo i respect you
December 19, 2024 at 10:40 PM
weekend came early
December 17, 2024 at 2:34 PM
road to 1k stars 🙈
December 14, 2024 at 6:39 PM
i hope no one reads my commit messages
December 10, 2024 at 3:28 PM
Objective-C crash course
December 2, 2024 at 5:04 PM
still can't believe how smooth VisionCamera + Skia is - this face blur Skia filter runs in a JS Frame Processor at 120 FPS! 🤯
December 2, 2024 at 4:59 PM
@sebjvidal.bsky.social good to see you here!
November 30, 2024 at 12:45 PM
Reposted by Marc 🦇
Introducing Unistyles 3.0! ✨

After months of development, I’m excited to present the brand-new version of Unistyles. We’ve shipped a ton of new features that will redefine how you build your React Native applications. 🧵
November 29, 2024 at 3:14 PM
had a chance to drive this beautiful Murcielago recently - that thing is truly a piece of fine italian art
November 28, 2024 at 12:03 AM
i should touch some grass
November 26, 2024 at 11:52 AM
if VisionCamera runs on this 11 year old tablet, it can run anywhere! 💪
November 25, 2024 at 2:30 PM
how's your friday?
November 22, 2024 at 8:29 PM
creating a custom "callable" implementation in C++ - man, capturing stack-allocated arguments in a possible heap context is hard...
November 22, 2024 at 1:14 PM
Reposted by Marc 🦇
And finally @mrousavy.com doing some Marc Rousavy / Nitro stuff 🧨 (10/10🧵)
November 21, 2024 at 5:30 PM
Abusing C++ templates
YouTube video by mrousavy
www.youtube.com
November 21, 2024 at 6:45 PM
no better feeling than seeing 100% of your tests pass
November 20, 2024 at 9:12 PM