diff --git a/sandbox/.dockerignore b/sandbox/.dockerignore
new file mode 100644
index 0000000..c27e9ba
--- /dev/null
+++ b/sandbox/.dockerignore
@@ -0,0 +1,3 @@
+node_modules
+build
+.env
\ No newline at end of file
diff --git a/sandbox/.env.example b/sandbox/.env.example
new file mode 100644
index 0000000..3f8a0de
--- /dev/null
+++ b/sandbox/.env.example
@@ -0,0 +1,2 @@
+ADMIN_URL="http://localhost:5173"
+REPO_URL="http://localhost:7006"
\ No newline at end of file
diff --git a/sandbox/docker-compose.yml b/sandbox/docker-compose.yml
index f0713e3..c2791b6 100644
--- a/sandbox/docker-compose.yml
+++ b/sandbox/docker-compose.yml
@@ -3,6 +3,6 @@ services:
   sandbox:
     build: .
     environment:
-      - ADMIN_URL=http://localhost:5173
-      - REPO_URL=http://localhost:7006
+      - ADMIN_URL=${ADMIN_URL}
+      - REPO_URL=${REPO_URL}
     network_mode: 'host'