Neura has always been a thing you own and run on your own hardware. That is the whole point, and I am not walking it back. But not everyone wants to babysit a machine at home, and some setups just work better with a little help from a server. So the cloud stays optional, always. This week I finished building it.
The core piece is the cloud brain. It lets an account chat through Neura using its own stored keys, so your conversations run on your credentials, not some shared pool I control. You bring the keys, Neura does the thinking, and that does not change just because the compute moved off your desk.
Then there is the relay hub, the part I am quietly proud of. It lets a phone and a robot talk through the cloud in real time, so you can be across town and still have your words land on the desk bot at home a second later. I also added a device registry, so every phone, laptop, and robot tied to an account is tracked.
Here is the part I refused to rush. This backend handles people's keys and their messages, which is about as sensitive as it gets. Before moving on, I ran a hard adversarial security review of the whole thing, tried to break it the way an attacker would, and fixed every single finding. Not most of them. Every one.
By the end of the week, online mode worked end to end. I talked into a phone, the words went up through the cloud, and the desk bot answered. Watching that loop close, phone to cloud to bot, made the whole detour feel worth it.