diff --git a/packages/coq-waterproof/coq-waterproof.3.0.0+8.19/opam b/packages/coq-waterproof/coq-waterproof.3.0.0+8.19/opam
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+++ b/packages/coq-waterproof/coq-waterproof.3.0.0+8.19/opam
@@ -0,0 +1,51 @@
+opam-version: "2.0"
+maintainer: "Jim Portegies <j.w.portegies@tue.nl>"
+authors: [
+  "Jelle Wemmenhove"
+  "Pim Otte"
+  "Balthazar Pathiachvili"
+  "Cosmin Manea"
+  "Lulof Pirée"
+  "Adrian Vrămuleţ"
+  "Tudor Voicu"
+  "Jim Portegies <j.w.portegies@tue.nl>"
+]
+
+synopsis: "Coq proofs in a style that resembles non-mechanized mathematical proofs"
+description: """
+The Waterproof plugin for the Coq proof assistant allows you to write Coq proofs in a style that resembles handwritten mathematical proofs, designed to help university students with learning how to prove mathematical statements.
+"""
+
+license: "LGPL-3.0-or-later"
+homepage: "https://github.com/impermeable/coq-waterproof"
+dev-repo: "git+https://github.com/impermeable/coq-waterproof.git"
+bug-reports: "https://github.com/impermeable/coq-waterproof/issues"
+
+depends: [
+  "ocaml" {>= "4.09.0"}
+  "coq" {>= "8.19.1" & < "8.20" | = "dev"}
+  "dune" {>= "3.8"}
+]
+
+build: [
+  ["dune" "build" "-p" name "-j" jobs "@install"]
+]
+
+available: (arch != "s390x") & (arch != "ppc64") & (os != "win32")
+
+conflicts: [ "ocaml-option-bytecode-only" ]
+
+tags: [
+  "keyword:mathematics education"
+  "category:Mathematics/Education"
+  "date:2023-11-04"
+  "logpath:Waterproof"
+]
+url {
+  src:
+    "https://github.com/impermeable/coq-waterproof/archive/refs/tags/3.0.0+8.19.1.tar.gz"
+  checksum: [
+    "md5=6a1981f702a8d71b1407928e37ad9b95"
+    "sha512=149087397667a7dacaa8b6e9fa9552f829a8b807dd8a16ed0209b4ff82c3aeeb5f008d837a4cff1772debcb4929defd2588b53fa472c9d27d661e164404e98ac"
+  ]
+}