diff --git a/packages/findlib/findlib.1.8.1+dune2/opam b/packages/findlib/findlib.1.8.1+dune2/opam
new file mode 100644
index 0000000000..cc0c8df89a
--- /dev/null
+++ b/packages/findlib/findlib.1.8.1+dune2/opam
@@ -0,0 +1,31 @@
+opam-version: "2.0"
+maintainer:   "Anil Madhavapeddy <anil@recoil.org>"
+homepage:     "https://github.com/dune-universe/lib-findlib"
+bug-reports:  "https://github.com/dune-universe/lib-findlib/issues"
+dev-repo: "git+https://github.com/dune-universe/lib-findlib.git"
+build: [
+  [ "env" "FINDLIB_PREFIX=%{lib}%" "dune" "build" "-p" name "-j" jobs ]
+]
+depends: [
+  "ocaml" {>= "4.06.0"}
+  "dune"
+  "dune-configurator"
+]
+synopsis: "A library manager for OCaml"
+description: """
+Findlib is a library manager for OCaml. It provides a convention how
+to store libraries, and a file format ("META") to describe the
+properties of libraries. There is also a tool (ocamlfind) for
+interpreting the META files, so that it is very easy to use libraries
+in programs and scripts.
+"""
+authors: "Gerd Stolpmann <gerd@gerd-stolpmann.de>"
+url {
+  src:
+    "https://github.com/dune-universe/lib-findlib/releases/download/v1.8.1%2Bdune2/findlib-1.8.1.dune2.tbz"
+  checksum: [
+    "sha256=155618308ac9483d4e2ad0e2316a11c6d60fec215f2504d2d61a8f5b52f7e1be"
+    "sha512=a54a2e2fc7d20bfaf1295c6d54ae9386882d17efe0ea9b1befa6dd16799ccd451f940fa4346e58e03c352972285d3a665a06a1f0b163b09bffa6a5c8c9d626f1"
+  ]
+}
+x-commit-hash: "0422aa2912c59f04b5323657f7da863ae652fa0f"
diff --git a/packages/ocamlfind/ocamlfind.1.8.1+dune2/opam b/packages/ocamlfind/ocamlfind.1.8.1+dune2/opam
new file mode 100644
index 0000000000..7bcd0f52e6
--- /dev/null
+++ b/packages/ocamlfind/ocamlfind.1.8.1+dune2/opam
@@ -0,0 +1,39 @@
+opam-version: "2.0"
+maintainer:   "Thomas Gazagnaire <thomas@gazagnaire.org>"
+homepage:     "https://github.com/dune-universe/lib-findlib"
+bug-reports:  "https://github.com/dune-universe/lib-findlib/issues"
+dev-repo: "git+https://github.com/dune-universe/lib-findlib.git"
+build: [
+  [ "env" "FINDLIB_PREFIX=%{lib}%" "dune" "build" "-p" name "-j" jobs ]
+]
+install: [
+  ["install" "-m" "0755" "ocaml-stub" "%{bin}%/ocaml"] {ocaml:preinstalled}
+  ["cp" "%{lib}%/toplevel/topfind" "%{lib}%/ocaml/topfind"] {!ocaml:preinstalled}
+]
+remove: [
+  ["rm" "-f" "%{bin}%/ocaml"] {ocaml:preinstalled}
+  ["rm" "-f" "%{lib}%/ocaml/topfind"] {!ocaml:preinstalled}
+]
+depends: [
+  "ocaml" {>= "4.06.0"}
+  "dune"
+  "findlib"
+]
+setenv: OCAMLPATH = "%{lib}%"
+synopsis: "A library manager for OCaml"
+description: """
+Findlib is a library manager for OCaml. It provides a convention how
+to store libraries, and a file format ("META") to describe the
+properties of libraries. There is also a tool (ocamlfind) for
+interpreting the META files, so that it is very easy to use libraries
+in programs and scripts."""
+authors: "Gerd Stolpmann <gerd@gerd-stolpmann.de>"
+url {
+  src:
+    "https://github.com/dune-universe/lib-findlib/releases/download/v1.8.1%2Bdune2/findlib-1.8.1.dune2.tbz"
+  checksum: [
+    "sha256=155618308ac9483d4e2ad0e2316a11c6d60fec215f2504d2d61a8f5b52f7e1be"
+    "sha512=a54a2e2fc7d20bfaf1295c6d54ae9386882d17efe0ea9b1befa6dd16799ccd451f940fa4346e58e03c352972285d3a665a06a1f0b163b09bffa6a5c8c9d626f1"
+  ]
+}
+x-commit-hash: "0422aa2912c59f04b5323657f7da863ae652fa0f"