feat(docker_modules/opencode): Remove opencode model setup script and use upstream instead to keep things up to date

Author: j3soon

docs/docker-modules/opencode.md

@@ -35,13 +35,25 @@ opencode
 
 The first time you run OpenCode, it will prompt you to choose and authenticate a model provider.
 
-## Authentication
+## Configuring Local Models
 
-The default `compose.yaml` mounts `${HOME}/docker/.opencode` to `/home/user/.opencode` and `${HOME}/docker/.local/share/opencode` to `/home/user/.local/share/opencode` so the installed binary and provider credentials can persist across containers.
+Follow the [OpenCode config locations](https://opencode.ai/docs/config/#locations) guide and edit `~/.config/opencode/opencode.json` directly.
+
+The default `compose.yaml` mounts `${HOME}/docker/.config/opencode` to `/home/user/.config/opencode` and `${HOME}/docker/.local/share/opencode` to `/home/user/.local/share/opencode` so the installed binary and provider credentials can persist across containers.
+
+For a local [llama.cpp](https://github.com/ggml-org/llama.cpp) endpoint, add a provider entry like this by downloading and running the setup helper script:
+
+```sh
+curl -fsSL https://raw.githubusercontent.com/j3soon/local-llm-notes/refs/heads/main/examples/basic-secure-api/scripts/setup_opencode.sh -o /tmp/setup_opencode.sh
+chmod +x /tmp/setup_opencode.sh
+/tmp/setup_opencode.sh
+```
+
+The script installs the necessary dependencies and sets the `OPENCODE_MODEL` environment variable to point to the local model. After running it, you can start OpenCode as usual and it will use the locally-installed model.
 
 ## Privacy
 
-Note that using cloud‑hosted models may allow your code to be used for training. See the OpenCode privacy policy for details: [privacy policy](https://opencode.ai/docs/zen/#privacy). Additionally, refer to `setup_opencode_llamacpp.sh` for local [llama.cpp](https://github.com/ggml-org/llama.cpp) configuration.
+Note that using cloud-hosted models may allow your code to be used for training. See the OpenCode privacy policy for details: [privacy policy](https://opencode.ai/docs/zen/#privacy).
 
 ## References