diff --git a/packages/mod/mod.1.0/opam b/packages/mod/mod.1.0/opam
new file mode 100644
index 00000000000..a87f54acb42
--- /dev/null
+++ b/packages/mod/mod.1.0/opam
@@ -0,0 +1,38 @@
+# This file is generated by dune, edit dune-project instead
+opam-version: "2.0"
+synopsis: "Proper modulo operators for OCaml"
+maintainer: ["v@njh.eu"]
+authors: ["Volker Diels-Grabsch"]
+license: "ISC"
+homepage: "https://gitlab.com/v0g/mod"
+bug-reports: "https://gitlab.com/v0g/mod/-/issues"
+depends: [
+  "dune" {>= "2.9"}
+  "odoc" {with-doc}
+]
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "--promote-install-files=false"
+    "@install"
+    "@runtest" {with-test}
+    "@doc" {with-doc}
+  ]
+  ["dune" "install" "-p" name "--create-install-files" name]
+]
+dev-repo: "git+https://gitlab.com/v0g/mod.git"
+url {
+  src:
+    "https://gitlab.com/-/project/60374965/uploads/baf2217bcdcb1a66362ab6aa82c0fdf1/mod-1.0.tar.zst"
+  checksum: [
+    "sha256=4fef6f1e2c56813ad4da5131e90f3f31bf670a3d90e598fdb9be64f735638772"
+    "sha512=f208da190854d782b95716d916dd67c6ed0c469a6d41ebfe1c470cc8fec2544634184f39ef10115b6d9d83f07d2e41e4db6731cc58fcc834221c7a822334ae98"
+  ]
+}
+