Using Codex CLI with gpt-oss:120b on an NVIDIA DGX Spark via Tailscale. Inspired by a YouTube comment I wrote up how I run OpenAI's Codex CLI coding agent against the gpt-oss:120b model running in Ollama on my NVIDIA DGX Spark via a Tailscale network.
It takes a little bit of work to configure but the result is I can now use Codex CLI on my laptop anywhere in the world against a self-hosted model.
I used it to build this space invaders clone.
Recent articles
- Gemini 3 Flash - 17th December 2025
- I ported JustHTML from Python to JavaScript with Codex CLI and GPT-5.2 in 4.5 hours - 15th December 2025
- JustHTML is a fascinating example of vibe engineering in action - 14th December 2025