[April Dream] We believe your AI should belong only to you. — Sentinel makes your local machine a fortress for your personality.

We support 'April Dream,' a project that turns April 1st into a day for sharing dreams. This press release is the dream of PXR LLC. Have you been able to spend your day without being watched by anyone? Discussions about AI often revolve around corporate governance or national strategy. However, what we want to reclaim is something smaller: the individual. Back then, sitting in front of a computer was a form of freedom. Opening the screen alone late at night, facing what you love without anyone watching. Exchanging words on bulletin boards, downloading free software, and placing characters on your desktop. The internet was still a bit inconvenient, but it was truly yours. Now, when you talk to an AI, your words are recorded on some server. The OS sends telemetry, and social media tracks your behavior. What you think, what you worry about, and who you talk to—it might no longer be yours alone. As long as you are connected to a network, perfect privacy does not exist. That is a fact. But, you can choose the direction you aim for. Do you remember that paperclip? While we found it annoying, it was trying to stand by our side. It was someone who helped with spreadsheets, wrote text together, and understood the flow of work. But the technology of the time was not up to the task. Eventually, the paperclip disappeared, and the computer returned to being just a tool. More than twenty years have passed, and that promise is finally about to be fulfilled. Supplementing words before you type, reading the intent of your calculations, and suggesting the next move. Like a piano duet, right next to you. However, the 'AI by your side' today lives on some server. Will you continue the duet while leaving your words, your worries, and the relationships you have nurtured inside a system managed by a company? We don't think so. Sentinel is a desktop application where AI characters reside on your local machine. Speech synthesis runs locally. We deeply empathize with the will of domestic TTS projects like VOICEVOX Core, which have spent years trying to give characters unique voices. Sentinel delivers that voice without letting it leave the network. Avatars are compatible with EMG and VRM formats. The culture of 'carrying your own character' pioneered by VRM—the idea that your avatar is yours, independent of platforms—is something we want to extend. The memory of conversations remains on your machine. You nurture the character's voice, appearance, and personality. It is not an 'AI as a service' managed by a corporation, but an intelligence that grows in your hands, uniquely yours. You nurture your AI. There should be such a thing. Our dream is to make the local machine a 'fortress of personality.' We cannot promise perfect privacy. As long as it runs on an OS and there is a network, 100% is impossible. But we will continue to choose a design where dialogues with AI characters, conversation logs, and the nurtured personality remain at least within your machine. Beyond that, we will grow an ecosystem centered on the unique avatar standard, EMG. Voices, appearances, and personalities will be created, distributed, and inherited by the community. We will make this an era where you own your AI.