diff --git a/packages/ff/ff.0.2.0/opam b/packages/ff/ff.0.2.0/opam
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+opam-version: "2.0"
+authors: [ "Danny Willems <be.danny.willems@gmail.com>" ]
+maintainer: [ "Danny Willems <be.danny.willems@gmail.com>" ]
+synopsis: "OCaml implementation of Finite Field operations"
+description: "OCaml implementation of Finite Field operations"
+homepage: "https://gitlab.com/dannywillems/ocaml-ff"
+dev-repo: "git+https://gitlab.com/dannywillems/ocaml-ff.git"
+bug-reports: "https://gitlab.com/dannywillems/ocaml-ff/issues"
+license: "MIT"
+depends: [
+  "dune" {build & >= "2.0"}
+  # Has not been tested with other Zarith versions.
+  # The CI should verify it and it can then be extent
+  "zarith" {build & = "1.9.1"}
+  "alcotest" {with-test}
+]
+build: [[ "dune" "build" "-j" jobs "-p" name "@install" ]]
+run-test: [[ "dune" "runtest" "-p" name "-j" jobs ]]