add Rust env support

agent

@@ -2,6 +2,7 @@
 
 workspace="$HOME/ai_workspace"
 app="opencode"
+env=""
 rebuild=false
 
 while [[ $# -gt 0 ]]; do
@@ -14,12 +15,16 @@ while [[ $# -gt 0 ]]; do
       app="$2"
       shift 2
       ;;
+    -e|--env)
+      env="$2"
+      shift 2
+      ;;
     --rebuild)
       rebuild=true
       shift
       ;;
     *)
-      echo "Usage: $0 [-p /path/to/workspace] [-a claude|opencode] [--rebuild]" >&2
+      echo "Usage: $0 [-p /path/to/workspace] [-a claude|opencode] [-e rust] [--rebuild]" >&2
       exit 1
       ;;
   esac
@@ -52,20 +57,39 @@ case "$app" in
     ;;
 esac
 
+env_suffix=""
+env_layer=""
+
+case "$env" in
+  "")
+    ;;
+  rust)
+    env_suffix="-rust"
+    env_layer='RUN curl --proto '"'"'=https'"'"' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+ENV PATH="/root/.cargo/bin:${PATH}"'
+    ;;
+  *)
+    echo "Unknown env '$env'. Supported: rust" >&2
+    exit 1
+    ;;
+esac
+
+image_name="${image_name}${env_suffix}"
+
 if $rebuild || ! docker image inspect "$image_name" &>/dev/null; then
   echo "Building $image_name..."
-  docker build --pull -t "$image_name" - <<EOF
-FROM node:24-bullseye
+  dockerfile="FROM node:24-bullseye
+${env_layer}
 RUN npm install -g $npm_pkg
 WORKDIR /workspace
-CMD ["$cmd"]
-EOF
+CMD [\"$cmd\"]"
+  docker build --pull -t "$image_name" - <<< "$dockerfile"
 fi
 
 clear
 
 docker run -it --rm \
-  --name "${app}-chat" \
+  --name "${image_name}-container" \
   -v "$workspace:/workspace" \
   "${extra_volumes[@]}" \
   -w /workspace \