Let's try sh-on-windows as well.

.drone.yml

@@ -1,10 +1,20 @@
+clone:
+    depth: 10
 build:
-    image: teaci/cygwin32
+    cygwin:
-    pull: true
+        image: teaci/cygwin32
-    shell: cygwin32
+        pull: true
-    commands:
+        shell: cygwin32
-      - uname -a
+        commands:
-      - id
+          - uname -a
-      - C:/cygwin-installer.exe --site http://mirrors.tea-ci.org/cygwin --local-package-dir Z:/tmp/cygwin -W -P ninja
+          - id
-      - make PREFIX=/tmp/acki +ack
+          - C:/cygwin-installer.exe --site http://mirrors.tea-ci.org/cygwin --local-package-dir Z:/tmp/cygwin -W -P ninja
+          - make PREFIX=/tmp/acki +ack
+    linuxonwindows:
+        image: teaci/msys32
+        pull: true
+        shell: sh
+        commands:
+          - apt install build-essentials ninja
+          - make