diff --git a/.tangled/workflows/ci.yml b/.tangled/workflows/ci.yml
new file mode 100644
index 0000000..4afd71b
--- /dev/null
+++ b/.tangled/workflows/ci.yml
@@ -0,0 +1,33 @@
+when:
+  - event: ["push", "manual"]
+    branch: ["**"]
+  - event: ["pull_request"]
+    branch: ["**"]
+
+engine: "nixery"
+
+clone:
+  depth: 1
+
+dependencies:
+  nixpkgs/nixpkgs-unstable:
+    - bun
+    - neovim
+    - plan9port
+    - rc
+
+cache:
+  - key: "bun-dependencies"
+    hash:
+      - opencode-plugin/bun.lock
+      - opencode-plugin/package.json
+    paths:
+      - opencode-plugin/node_modules
+
+steps:
+  - name: "Install dependencies"
+    command: "cd opencode-plugin && bun install --frozen-lockfile"
+  - name: "Test"
+    command: "9 mk test"
+  - name: "Build"
+    command: "9 mk build"