diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 99498add..83bcce00 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -26,24 +26,15 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - run: echo $env:path
-      - run: ls -l c:/
-      - run: ls -l d:/a/
-
-      - name: Checkout tree
-        uses: actions/checkout@v4
-
-      - name: Set-up Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: lts/*
-
       - name: Set-up OCaml
         uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
           opam-pin: false
 
+      - run: ls -l /d/cygwin/bin/cygss* || true
+      - run: ls -l /d/cygwin/include/openssl* || true
+
       - run: opam pin add ocsigen-start.7.0.0 . --no-action
 
       - run: opam install .