Flutter, Django, real-time — the problems that only show up once real people are using the thing.
Topologies, TURN, simulcast and the latency ladder — what actually sits between a Start Live button and a thousand people watching, and where LiveKit fits.
WinDev, WebDev and WinDev Mobile collapse an entire toolchain into one product. Having worked in it, here is what it is genuinely good at, what it costs you, and the architecture pattern worth stealing.
How a WireGuard tunnel and a very small VPS in Algiers let a Hetzner box call a service that refuses every foreign address — without routing the whole application through it.
Play and pause behaving strangely, seeking that does nothing, a first frame that takes forever on mobile — usually one four-byte box in the wrong place. And one ffmpeg flag.
Every product in DA-Mall is a full-screen video. Here is what it actually takes to scroll through hundreds of them without the decoder giving up.
A courier API that meters you per second, per minute, per hour and per day will not fail during your load test. It will fail at 3pm, and only for the customers with the most parcels.
Live order tracking works perfectly on office Wi-Fi. Reconnection, heartbeats and resume tokens are what make it work on a courier's phone in a lift.
LIMIT/OFFSET looks correct in a seeded test database. On a live list with new rows arriving, it silently duplicates and skips items — and gets slower every page.
Creating and using Dart extensions to add functionality to existing libraries and classes.
Using Chargily's E-pay services to accept payments in your app.
A webhook is a way for an app to provide other applications with real-time information.