What about...

.drone.yml

@@ -8,6 +8,9 @@ workspace:
 steps:
 - name: yarn install
   image: node:latest
+  volumes:
+    - name: module_cache
+      path: ./node_modules
   commands:
   - yarn install
 
@@ -46,6 +49,10 @@ trigger:
   event:
   - push
 
+volumes:
+  - name: module_cache
+    temp: {}
+
 ---
 kind: pipeline
 type: docker
@@ -57,6 +64,9 @@ workspace:
 steps:
 - name: yarn install
   image: node:latest
+  volumes:
+    - name: module_cache
+      path: ./node_modules
   commands:
   - yarn install
 
@@ -90,6 +100,10 @@ trigger:
   event:
   - push
 
+volumes:
+  - name: module_cache
+    temp: {}
+
 ---
 kind: pipeline
 type: docker
@@ -103,7 +117,7 @@ platform:
   arch: arm64
 
 steps:
-- name: yarn-install
+- name: Build
   image: node
   commands:
     - cd /app
@@ -125,9 +139,7 @@ steps:
   volumes:
     - name: app-build-dir
   path: /app-build
-  volumes:
-    - name: app-build-dir
-      temp: {}
+  depends_on: Build
 
 trigger:
   branch:
@@ -137,3 +149,7 @@ trigger:
 
 depends_on:
   - Build Pipeline
+
+volumes:
+  - name: app-build-dir
+    temp: {}