diff --git a/packages/mustache-cli/mustache-cli.3.3.0/opam b/packages/mustache-cli/mustache-cli.3.3.0/opam
new file mode 100644
index 000000000000..6f7326fe698c
--- /dev/null
+++ b/packages/mustache-cli/mustache-cli.3.3.0/opam
@@ -0,0 +1,50 @@
+opam-version: "2.0"
+synopsis: "CLI for Mustache logic-less templates"
+description: """
+
+Command line utility `mustache-ocaml` for driving logic-less templates.
+Read and write mustache templates, and render them by providing a json object.
+"""
+maintainer: ["Rudi Grinberg <me@rgrinerg.com>"]
+authors: [
+  "Rudi Grinberg <me@rgrinberg.com>"
+  "Armaël Guéneau <armael.gueneau@ens-lyon.fr>"
+  "Gabriel Scherer <gabriel.scherer@gmail.com>"
+]
+license: "MIT"
+homepage: "https://github.com/rgrinberg/ocaml-mustache"
+bug-reports: "https://github.com/rgrinberg/ocaml-mustache/issues"
+depends: [
+  "dune" {>= "2.7"}
+  "ezjsonm" {with-test}
+  "jsonm" {>= "1.0.1"}
+  "mustache" {= version}
+  "cmdliner" {>= "1.1.0"}
+  "ocaml" {>= "4.08"}
+  "odoc" {with-doc}
+  "ounit2" {with-test}
+]
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@runtest" {with-test}
+    "@doc" {with-doc}
+  ]
+]
+dev-repo: "git+https://github.com/rgrinberg/ocaml-mustache.git"
+url {
+  src:
+    "https://github.com/rgrinberg/ocaml-mustache/releases/download/v3.3.0/mustache-3.3.0.tbz"
+  checksum: [
+    "sha256=370b7eae6315f24d457d85c393aafe4a448a2b9c41d00ac0fa0dd1ac7728adfc"
+    "sha512=64795b0a0a2644961619cfdf43d9b5904181eb783ac1e5dc2a44c7bfb9ebf6fe9fb03bc1f31aa53a760b3ca6676b93d494e17b3f89f07c3cb3e4a85927cfbca2"
+  ]
+}
+x-commit-hash: "1d12af8eb7e60f7b84e20adfc39974ce8b672961"
diff --git a/packages/mustache/mustache.3.3.0/opam b/packages/mustache/mustache.3.3.0/opam
new file mode 100644
index 000000000000..7f80060f69fb
--- /dev/null
+++ b/packages/mustache/mustache.3.3.0/opam
@@ -0,0 +1,44 @@
+opam-version: "2.0"
+synopsis: "Mustache logic-less templates in OCaml"
+description: """
+
+Read and write mustache templates, and render them.
+"""
+maintainer: ["Rudi Grinberg <me@rgrinerg.com>"]
+authors: [
+  "Rudi Grinberg <me@rgrinberg.com>"
+  "Armaël Guéneau <armael.gueneau@ens-lyon.fr>"
+  "Gabriel Scherer <gabriel.scherer@gmail.com>"
+]
+license: "MIT"
+homepage: "https://github.com/rgrinberg/ocaml-mustache"
+bug-reports: "https://github.com/rgrinberg/ocaml-mustache/issues"
+depends: [
+  "dune" {>= "2.7"}
+  "menhir" {>= "20180703"}
+  "ocaml" {>= "4.08"}
+  "odoc" {with-doc}
+]
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@doc" {with-doc}
+  ]
+]
+dev-repo: "git+https://github.com/rgrinberg/ocaml-mustache.git"
+url {
+  src:
+    "https://github.com/rgrinberg/ocaml-mustache/releases/download/v3.3.0/mustache-3.3.0.tbz"
+  checksum: [
+    "sha256=370b7eae6315f24d457d85c393aafe4a448a2b9c41d00ac0fa0dd1ac7728adfc"
+    "sha512=64795b0a0a2644961619cfdf43d9b5904181eb783ac1e5dc2a44c7bfb9ebf6fe9fb03bc1f31aa53a760b3ca6676b93d494e17b3f89f07c3cb3e4a85927cfbca2"
+  ]
+}
+x-commit-hash: "1d12af8eb7e60f7b84e20adfc39974ce8b672961"