diff --git a/.env.development b/.env.development
new file mode 100644
index 0000000..036a742
--- /dev/null
+++ b/.env.development
@@ -0,0 +1,6 @@
+# tokens
+VITE_MAPBOX_TOKEN='pk.eyJ1IjoiYWxveGUiLCJhIjoid3lBT0poSSJ9.QvBnfWvRrXcHGUQPccVtKA'
+VITE_THUNDERFOREST_TOKEN='c49b6e87f82046eda9501fa5f09a2e3a'
+
+# base url
+VITE_BASE_URL='/'
\ No newline at end of file
diff --git a/.env.production b/.env.production
new file mode 100644
index 0000000..3c6842b
--- /dev/null
+++ b/.env.production
@@ -0,0 +1,6 @@
+# tokens
+VITE_MAPBOX_TOKEN='pk.eyJ1IjoiYWxveGUiLCJhIjoid3lBT0poSSJ9.QvBnfWvRrXcHGUQPccVtKA'
+VITE_THUNDERFOREST_TOKEN='c49b6e87f82046eda9501fa5f09a2e3a'
+
+# base url
+VITE_BASE_URL='/velo/traces/'
\ No newline at end of file
diff --git a/.github/workflows/build_test.yml b/.github/workflows/build_test.yml
index 0328c40..330c296 100644
--- a/.github/workflows/build_test.yml
+++ b/.github/workflows/build_test.yml
@@ -33,7 +33,7 @@ jobs:
       - name: Install dependencies & yarn build
         run: |
           yarn install --frozen-lockfile
-          yarn build
+          yarn build --mode development
 
       - name: Copy Site recursively to remote
         uses: appleboy/scp-action@master