diff --git a/home/.config/opencode/config.json b/home/.config/opencode/config.json
new file mode 100644
index 0000000..07fbf03
--- /dev/null
+++ b/home/.config/opencode/config.json
@@ -0,0 +1,68 @@
+{
+  "$schema": "https://opencode.ai/config.json",
+
+  "model": "openai/qwen3-coder-30b-a3b-instruct",
+  "small_model": "openai/gemini-2.5-flash-lite",
+
+  "provider": {
+    "openai": {
+      "name": "nuclide-litellm",
+      "options": {
+        "apiKey": "{env:OPENAI_API_KEY}",
+        "baseURL": "{env:OPENAI_BASE_URL}",
+        "timeout": 600000,
+        "chunkTimeout": 60000
+      }
+    },
+    "anthropic": {
+      "options": {
+        "apiKey": "{env:ANTHROPIC_API_KEY}",
+        "baseURL": "{env:ANTHROPIC_BASE_URL}",
+        "timeout": 600000
+      }
+    }
+  },
+
+  "mcp": {
+    "nuclide-dev": {
+      "type": "remote",
+      "url": "https://mcp.nuclide.systems/group/dev/mcp",
+      "enabled": true,
+      "headers": {
+        "Authorization": "Bearer {env:MCP_GATEWAY_TOKEN}"
+      }
+    },
+    "nuclide-research": {
+      "type": "remote",
+      "url": "https://mcp.nuclide.systems/group/research/mcp",
+      "enabled": true,
+      "headers": {
+        "Authorization": "Bearer {env:MCP_GATEWAY_TOKEN}"
+      }
+    },
+    "nuclide-personal": {
+      "type": "remote",
+      "url": "https://mcp.nuclide.systems/group/personal/mcp",
+      "enabled": true,
+      "headers": {
+        "Authorization": "Bearer {env:MCP_GATEWAY_TOKEN}"
+      }
+    },
+    "nuclide-image": {
+      "type": "remote",
+      "url": "https://mcp.nuclide.systems/group/image/mcp",
+      "enabled": true,
+      "headers": {
+        "Authorization": "Bearer {env:MCP_GATEWAY_TOKEN}"
+      }
+    },
+    "nuclide-storage": {
+      "type": "remote",
+      "url": "https://mcp.nuclide.systems/group/storage/mcp",
+      "enabled": true,
+      "headers": {
+        "Authorization": "Bearer {env:MCP_GATEWAY_TOKEN}"
+      }
+    }
+  }
+}
diff --git a/home/.config/opencode/sync.py b/home/.config/opencode/sync.py
new file mode 100644
index 0000000..95268d3
--- /dev/null
+++ b/home/.config/opencode/sync.py
@@ -0,0 +1,135 @@
+#!/usr/bin/env python3
+"""
+Regenerate ~/.config/opencode/config.json from live nuclide.systems state.
+
+Queries:
+  - LiteLLM  http://192.168.1.40:14000/v1/models   → available models
+  - MCP GW   https://mcp.nuclide.systems/servers    → registered server groups
+
+Run manually or wire into dotfiles install / Coder startup script.
+
+Requires: MCP_GATEWAY_TOKEN env var (get via https://mcp.nuclide.systems/mcp-config
+          or set from GATEWAY_API_KEYS in .env)
+"""
+from __future__ import annotations
+
+import json
+import os
+import sys
+from pathlib import Path
+
+# ── config ────────────────────────────────────────────────────────────────────
+LITELLM_BASE = os.environ.get("OPENAI_BASE_URL", "http://192.168.1.40:14000/v1")
+LITELLM_KEY  = os.environ.get("OPENAI_API_KEY", "sk-tapirnase")
+MCP_BASE     = "https://mcp.nuclide.systems"
+CONFIG_PATH  = Path.home() / ".config" / "opencode" / "config.json"
+
+# Preferred model order for the default picker
+PREFERRED_CODER  = ["qwen3-coder-30b-a3b-instruct", "openai-gpt-oss-120b", "gemini-2.5-pro"]
+PREFERRED_SMALL  = ["gemini-2.5-flash-lite", "mistral-small-latest", "gemini-2.5-flash"]
+
+# ── helpers ───────────────────────────────────────────────────────────────────
+def _get(url: str, token: str | None = None, api_key: str | None = None) -> dict | list | None:
+    try:
+        import urllib.request, urllib.error
+        req = urllib.request.Request(url)
+        if token:
+            req.add_header("Authorization", f"Bearer {token}")
+        if api_key:
+            req.add_header("Authorization", f"Bearer {api_key}")
+        with urllib.request.urlopen(req, timeout=10) as r:
+            return json.loads(r.read())
+    except Exception as e:
+        print(f"  warn: {url}: {e}", file=sys.stderr)
+        return None
+
+
+def pick_model(available: set[str], preferences: list[str]) -> str | None:
+    for name in preferences:
+        if name in available:
+            return f"openai/{name}"
+    return None
+
+
+# ── main ──────────────────────────────────────────────────────────────────────
+def main() -> None:
+    print("opencode sync: fetching live state…")
+
+    # 1. LiteLLM models
+    models_resp = _get(f"{LITELLM_BASE}/models", api_key=LITELLM_KEY)
+    available: set[str] = set()
+    if models_resp and "data" in models_resp:
+        available = {m["id"] for m in models_resp["data"]}
+        print(f"  LiteLLM: {len(available)} models")
+    else:
+        print("  LiteLLM: unreachable, using fallback models")
+
+    default_model = pick_model(available, PREFERRED_CODER) or "openai/qwen3-coder-30b-a3b-instruct"
+    small_model   = pick_model(available, PREFERRED_SMALL)  or "openai/gemini-2.5-flash-lite"
+    print(f"  default: {default_model}")
+    print(f"  small:   {small_model}")
+
+    # 2. MCP gateway groups
+    gw_token = os.environ.get("MCP_GATEWAY_TOKEN", "")
+    servers_resp = _get(f"{MCP_BASE}/servers", token=gw_token)
+    groups: set[str] = set()
+    if isinstance(servers_resp, list):
+        for s in servers_resp:
+            if isinstance(s, dict):
+                grp = s.get("group")
+                if grp:
+                    groups.add(grp)
+    elif isinstance(servers_resp, dict):
+        for name, cfg in servers_resp.items():
+            grp = cfg.get("group") if isinstance(cfg, dict) else None
+            if grp:
+                groups.add(grp)
+    if not groups:
+        # fallback: static known groups
+        groups = {"dev", "research", "personal", "image", "storage"}
+        print(f"  MCP GW: unreachable, using static groups: {sorted(groups)}")
+    else:
+        print(f"  MCP GW: groups = {sorted(groups)}")
+
+    mcp_entries: dict = {}
+    for group in sorted(groups):
+        mcp_entries[f"nuclide-{group}"] = {
+            "type": "remote",
+            "url": f"{MCP_BASE}/group/{group}/mcp",
+            "enabled": True,
+            "headers": {"Authorization": "Bearer {env:MCP_GATEWAY_TOKEN}"},
+        }
+
+    # 3. Build config
+    cfg = {
+        "$schema": "https://opencode.ai/config.json",
+        "model": default_model,
+        "small_model": small_model,
+        "provider": {
+            "openai": {
+                "name": "nuclide-litellm",
+                "options": {
+                    "apiKey": "{env:OPENAI_API_KEY}",
+                    "baseURL": "{env:OPENAI_BASE_URL}",
+                    "timeout": 600000,
+                    "chunkTimeout": 60000,
+                },
+            },
+            "anthropic": {
+                "options": {
+                    "apiKey": "{env:ANTHROPIC_API_KEY}",
+                    "baseURL": "{env:ANTHROPIC_BASE_URL}",
+                    "timeout": 600000,
+                },
+            },
+        },
+        "mcp": mcp_entries,
+    }
+
+    CONFIG_PATH.parent.mkdir(parents=True, exist_ok=True)
+    CONFIG_PATH.write_text(json.dumps(cfg, indent=2) + "\n")
+    print(f"  written: {CONFIG_PATH}")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/install.sh b/install.sh
index 1ca9080..601f5bb 100755
--- a/install.sh
+++ b/install.sh
@@ -50,4 +50,9 @@ for BIN in codium code; do
     echo ": extensions synced"
   fi
 done
+# 7. opencode config sync (regenerates ~/.config/opencode/config.json from live state)
+if command -v python3 >/dev/null 2>&1; then
+  python3 "$HOME/.config/opencode/sync.py" 2>/dev/null || true
+fi
+
 echo "dotfiles installed: zsh + ohmyzsh + symlinks from $SRC/home"