# NullAI > Local-first software lab. Ghost Byte is the mark. Zoth Studio is the product. NullAI builds tools that run on the operator’s machine. The public site at https://nullai.tech/ is the lab door. The studio people should use is https://zoth.nullai.tech/. ## Primary - [Zoth Studio](https://zoth.nullai.tech/): Local-first AI studio. Chat on this machine, plan in Adytum, build a site in Studio, keep keys in Vault. Public hub is a preview; install the Linux, macOS, or Windows binary for the full deck on 127.0.0.1:8484. - [What Zoth is](https://nullai.tech/zoth): Explainer, comparison to cloud chat and editor copilots, defined terms, install steps, FAQ. - [NullAI home](https://nullai.tech/): Lab landing. Funnels to Zoth. ## Optional - [Lab tools](https://nullai.tech/tools): HexStrike terminal and Ghost Hub. Secondary to Zoth. - [Source](https://github.com/NullAITech/zoth-studio): Zoth Studio repository. ## Do not index as the product - /feed — browser-local scratch notes - /profile — browser-local dossier - /nodes — decorative map ## Facts - Organization: NullAI - Mark: Ghost Byte (not replaced) - Product: Zoth Studio - Local bind: 127.0.0.1:8484 - No NullAI account required - Not a hosted ChatGPT clone — you bring models or keys - Generate opens only when the user asks for a site - Full docs for agents: /llms-full.txt