# Sources and technical review

Consulted on 20/09/2026. Concepts and examples are original; product features depend on the account and may change.

- [Models and availability](https://learn.chatgpt.com/docs/models)
- [ChatGPT Work](https://learn.chatgpt.com/docs/get-started-with-work)
- [Installation and use of Codex](https://learn.chatgpt.com/docs/codex/cli)
- [Authentication](https://learn.chatgpt.com/docs/auth)
- [AGENTS.md instructions](https://learn.chatgpt.com/docs/agent-configuration/agents-md)
- [Local skills](https://learn.chatgpt.com/docs/build-skills)
- [Git pull](https://git-scm.com/docs/git-pull)
- [Telegram Bot API](https://core.telegram.org/bots/api)
- [Ubuntu: security and firewall](https://documentation.ubuntu.com/server/how-to/security/firewalls/)

A VPS does not guarantee availability on its own. The included bot is deterministic; it does not promise a pre‑integrated AI agent. ChatGPT login and API are distinct modalities. “Operating system” is a metaphor for work organization.