diff --git a/build/ffi/1.16.0 b/build/ffi/1.16.0
index e69de29..c33884c 100644
--- a/build/ffi/1.16.0
+++ b/build/ffi/1.16.0
@@ -0,0 +1 @@
+EXTRA_PKGS=libffi-dev
diff --git a/build/ffi/1.16.1 b/build/ffi/1.16.1
index e69de29..c33884c 100644
--- a/build/ffi/1.16.1
+++ b/build/ffi/1.16.1
@@ -0,0 +1 @@
+EXTRA_PKGS=libffi-dev
diff --git a/build/ffi/1.16.2 b/build/ffi/1.16.2
index e69de29..c33884c 100644
--- a/build/ffi/1.16.2
+++ b/build/ffi/1.16.2
@@ -0,0 +1 @@
+EXTRA_PKGS=libffi-dev
diff --git a/build/ffi/1.16.3 b/build/ffi/1.16.3
index e69de29..c33884c 100644
--- a/build/ffi/1.16.3
+++ b/build/ffi/1.16.3
@@ -0,0 +1 @@
+EXTRA_PKGS=libffi-dev
diff --git a/failed/alpine/14.3/ffi/1.16.0 b/failed/alpine/14.3/ffi/1.16.0
deleted file mode 100644
index e69de29..0000000
diff --git a/failed/alpine/14.3/ffi/1.16.1 b/failed/alpine/14.3/ffi/1.16.1
deleted file mode 100644
index e69de29..0000000
diff --git a/failed/alpine/14.3/ffi/1.16.2 b/failed/alpine/14.3/ffi/1.16.2
deleted file mode 100644
index e69de29..0000000
diff --git a/failed/alpine/14.3/ffi/1.16.3 b/failed/alpine/14.3/ffi/1.16.3
deleted file mode 100644
index e69de29..0000000
diff --git a/failed/alpine/17.3/ffi/1.16.0 b/failed/alpine/17.3/ffi/1.16.0
deleted file mode 100644
index e69de29..0000000
diff --git a/failed/alpine/17.3/ffi/1.16.1 b/failed/alpine/17.3/ffi/1.16.1
deleted file mode 100644
index e69de29..0000000
diff --git a/failed/alpine/17.3/ffi/1.16.2 b/failed/alpine/17.3/ffi/1.16.2
deleted file mode 100644
index e69de29..0000000
diff --git a/failed/alpine/17.3/ffi/1.16.3 b/failed/alpine/17.3/ffi/1.16.3
deleted file mode 100644
index e69de29..0000000
diff --git a/failed/alpine/18.3/ffi/1.16.0 b/failed/alpine/18.3/ffi/1.16.0
deleted file mode 100644
index e69de29..0000000
diff --git a/failed/alpine/18.3/ffi/1.16.1 b/failed/alpine/18.3/ffi/1.16.1
deleted file mode 100644
index e69de29..0000000
diff --git a/failed/alpine/18.3/ffi/1.16.2 b/failed/alpine/18.3/ffi/1.16.2
deleted file mode 100644
index e69de29..0000000
diff --git a/failed/alpine/18.3/ffi/1.16.3 b/failed/alpine/18.3/ffi/1.16.3
deleted file mode 100644
index e69de29..0000000