From the team
Notes from production.
What we learn shipping six apps and one framework, written down while it is still true.
restyle a running scene, no reset
FeaturedEngineering
Change it without stopping it: a particle system you can restyle in real time.The ambient motion behind our apps used to play one way forever. Here is how we made it something you can recolour and re-pace mid-flight, without ever restarting the scene.S
SiyabongaNovember 2026
Read →Where Jozi is tonight
ProductWhere Jozi is tonight: building a home screen that moves with the cityA night out starts with one question: where is it actually happening right now? Here is how we built Groove's new home screen to answer it the moment you open the app.October 2026
the network you actually have
EngineeringWhen the signal drops: building for the network people actually haveMost of our users open our apps on a weak mobile signal, not office Wi-Fi. Here is how we stopped treating offline as an error and started building for the network people actually have.October 2026
keeping the number true
EngineeringA number is a promise: counting honestly when a post goes viralThe view count beside a post is a promise, and it is hardest to keep at the exact moment it matters most. Here is how we made ours tell the truth under load.October 2026
dependable by default
EngineeringBoring on purpose: why we reach for dependable technology firstNew technology is thrilling precisely because nobody knows where the sharp edges are yet. Here is why we usually choose the calm, proven option instead, and when we don't.October 2026
design the seam first
EngineeringThe seam comes first: designing a capability before we build itWe design the interface to a capability before we build the thing behind it. Here is why the seam, not the implementation, is where the real engineering happens.October 2026
changing the core, safely
EngineeringDon't move the floor: changing a shared layer without breaking the apps on topEvery Existence app stands on a few shared foundations. Here is the versioning discipline that lets us change those layers without cracking the ground under a dozen products at once.September 2026
The example app is the acceptance test
EngineeringShow it running: why every Existence package ships with a working demoA package is not finished when it builds. It is finished when a real app runs on it. Here is the stubborn habit that lets a small team keep shipping on one shared foundation.September 2026
How we spec a build
EngineeringOne click to context: writing requirements so nobody has to askThe most expensive question in software is "what does this actually mean?" Here is the rule that stopped our engineers ever having to ask it: the ticket carries the headline, one linked page carries the whole story.September 2026
Notes, as they happen.
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