Maria Neumayer

@marianeum.bsky.social

European living in London 🇬🇧🇦🇹🇪🇺 Senior Staff Engineer at Monzo Previously at Skyscanner, Deliveroo, Citymapper & Path

Numbers like these show time and again, that a little work on the right thing goes a very long way. @marianeum.bsky.social was very quick to update Monzo's R8 configuration and made the app much more performant along the way. ⚡️

Maria Neumayer @marianeum.bsky.social · 4mo ago

Last year I attended a session on app performance by @keyboardsurfer.dev at @droidcon.bsky.social London and learned about some quick wins we could apply at @monzo.com. Curious about the results and the change? Read here: android-developers.googleblog.com/2026/03/monz...

Don't ignore this tip! We've switched to using the optimized proguard file & shrinking resources in our latest release and have seen a massive drop in all performance related metrics, with slow app launch metrics dropping >30%. All from a 5 minute code change!

Ben Weiss@keyboardsurfer.dev · 9mo ago

Run this and let me know the output: `grep "dontoptimize" app/build/outputs/mapping/release/configuration.txt` In case it's not empty, you definitely should watch this youtu.be/QqO2jZ-NZko?...

We've been using Navigation 3 since early alphas and it's perfect for us. We looked for a navigation solution for a while until nav3 came along - nothing quite fit the bill. Nav3 is the perfect combination of being very flexible and solving the hard problems. Congrats on hitting stable!

Ian Lake@ianlake.bsky.social · 9mo ago

Jetpack Navigation 3 is stable! 🎉🎉🎉 Leaning into Jetpack Compose and the idea of combining smaller building blocks together really helped make Nav3 a much more flexible library that made it a joy to work on and hopefully for you to use as well! android-developers.googleblog.com/2025/11/jetp...

If you submitted to the Droidcon London 2025 CfP... First of all, thanks! Second of all, keep an eye on your inbox starting today ;) I'm pretty proud we managed to go through all 343 submissions and have the first emails going out less than a week from the end of the CfP.

How is the Android ecosystem changing? The tags in the @droidcon.bsky.social London CfP submissions paint a very interesting picture! (bars represent actual counts, so both years are on the same scale) Some quick analysis in follow-ups

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