diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 17d361b..003fc65 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -3,10 +3,8 @@
 {
 	"name": "StableStudio dev",
 	"image": "mcr.microsoft.com/devcontainers/typescript-node:0-18",
-	"forwardPorts": [3000],
 	// avoid git "dubious ownership" errors, which break yarn 
-	"postStartCommand": "git config --global --add safe.directory ${containerWorkspaceFolder}",	
-	"postAttachCommand": "yarn",
+	"postStartCommand": "git config --global --add safe.directory ${containerWorkspaceFolder} && yarn install",		
 	"customizations": {
 		"vscode": {
 			"settings": {},
diff --git a/.devcontainer/gpu-webui/devcontainer.json b/.devcontainer/gpu-webui/devcontainer.json
index 443d149..4219f74 100644
--- a/.devcontainer/gpu-webui/devcontainer.json
+++ b/.devcontainer/gpu-webui/devcontainer.json
@@ -2,12 +2,11 @@
 // README at: https://github.com/devcontainers/templates/tree/main/src/typescript-node
 {
 	"name": "StableStudio+WebUI GPU dev",
-	"image": "mcr.microsoft.com/devcontainers/typescript-node:0-18",
-	"forwardPorts": [3000],	
+	"image": "mcr.microsoft.com/devcontainers/typescript-node:0-18",	
 	"postCreateCommand": "cd /home/node && git clone https://github.com/AUTOMATIC1111/stable-diffusion-webui.git webui && cd webui && python -m venv ~/.webui-venv && bash -c 'source ~/.webui-venv/bin/activate' && pip install torch==2.0.1+cu118 torchvision==0.15.2+cu118 --extra-index-url https://download.pytorch.org/whl/cu118 && pip install -r requirements_versions.txt",
 	// avoid git "dubious ownership" errors, which break yarn 
-	"postStartCommand": "git config --global --add safe.directory ${containerWorkspaceFolder}",	
-	"postAttachCommand": "yarn && echo 'To start the backend, run: cd ~/webui; ./webui.sh'",
+	"postStartCommand": "git config --global --add safe.directory ${containerWorkspaceFolder} && yarn",	
+	"postAttachCommand": "echo 'To start the backend, run: cd ~/webui; ./webui.sh'",
 	"customizations": {
 		"vscode": {
 			"settings": {