diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 320eda9..2cfcd47 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -67,7 +67,7 @@ jobs:
     - uses: actions/checkout@v6
     - name: Install wasmtime
       run: |
-        curl https://wasmtime.dev/install.sh -sSf | bash
+        curl https://wasmtime.dev/install.sh -sSf | bash -s -- --version v44.0.1
         echo "PATH=${PATH}:${HOME}/.wasmtime/bin" >> "$GITHUB_ENV"
 
     - name: Download components.tar
diff --git a/README.md b/README.md
index 040b5da..ff637ce 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 
 A WASM component services lifecycle.
 
+- [Architecture](#architecture)
 - [Build](#build)
 - [Run](#run)
 - [Community](#community)
@@ -11,6 +12,9 @@ A WASM component services lifecycle.
 - [Acknowledgements](#acknowledgements)
 - [License](#license)
 
+## Architecture
+
+[![architecture diagram](./architecture.jpg)](./architecture.jpg)
 
 ## Build
 
diff --git a/architecture.jpg b/architecture.jpg
new file mode 100644
index 0000000..46e1a4b
Binary files /dev/null and b/architecture.jpg differ