diff --git a/packages/jsonrpc/jsonrpc.1.20.1/opam b/packages/jsonrpc/jsonrpc.1.20.1/opam
new file mode 100644
index 00000000000..cca7b68d35c
--- /dev/null
+++ b/packages/jsonrpc/jsonrpc.1.20.1/opam
@@ -0,0 +1,47 @@
+opam-version: "2.0"
+synopsis: "Jsonrpc protocol implemenation"
+description: "See https://www.jsonrpc.org/specification"
+maintainer: ["Rudi Grinberg <me@rgrinberg.com>"]
+authors: [
+  "Andrey Popp <8mayday@gmail.com>"
+  "Rusty Key <iam@stfoo.ru>"
+  "Louis Roché <louis@louisroche.net>"
+  "Oleksiy Golovko <alexei.golovko@gmail.com>"
+  "Rudi Grinberg <me@rgrinberg.com>"
+  "Sacha Ayoun <sachaayoun@gmail.com>"
+  "cannorin <cannorin@gmail.com>"
+  "Ulugbek Abdullaev <ulugbekna@gmail.com>"
+  "Thibaut Mattio <thibaut.mattio@gmail.com>"
+  "Max Lantas <mnxndev@outlook.com>"
+]
+license: "ISC"
+homepage: "https://github.com/ocaml/ocaml-lsp"
+bug-reports: "https://github.com/ocaml/ocaml-lsp/issues"
+depends: [
+  "dune" {>= "3.0"}
+  "ocaml" {>= "4.08"}
+  "odoc" {with-doc}
+]
+dev-repo: "git+https://github.com/ocaml/ocaml-lsp.git"
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@doc" {with-doc}
+  ]
+]
+url {
+  src:
+    "https://github.com/ocaml/ocaml-lsp/releases/download/1.20.1/lsp-1.20.1.tbz"
+  checksum: [
+    "sha256=27ee54389a46701012a612dccd1f6f29ff353e348c7ba6de0fee37767dba3921"
+    "sha512=9e2d0fb2b316d0d1040e7043a7a38475217e5b727a669a1978c1850514a209ea7f7b04dbc9c7bf2654f9840d24d954f4530d5e93a807be633b487ef99c1c1b4f"
+  ]
+}
+x-commit-hash: "4c57c6ab72fdc9997e16db05ca41095c06df841c"
diff --git a/packages/lsp/lsp.1.20.1/opam b/packages/lsp/lsp.1.20.1/opam
new file mode 100644
index 00000000000..910e9280fb4
--- /dev/null
+++ b/packages/lsp/lsp.1.20.1/opam
@@ -0,0 +1,57 @@
+opam-version: "2.0"
+synopsis: "LSP protocol implementation in OCaml"
+description: """
+
+Implementation of the LSP protocol in OCaml. It is designed to be as portable as
+possible and does not make any assumptions about IO.
+"""
+maintainer: ["Rudi Grinberg <me@rgrinberg.com>"]
+authors: [
+  "Andrey Popp <8mayday@gmail.com>"
+  "Rusty Key <iam@stfoo.ru>"
+  "Louis Roché <louis@louisroche.net>"
+  "Oleksiy Golovko <alexei.golovko@gmail.com>"
+  "Rudi Grinberg <me@rgrinberg.com>"
+  "Sacha Ayoun <sachaayoun@gmail.com>"
+  "cannorin <cannorin@gmail.com>"
+  "Ulugbek Abdullaev <ulugbekna@gmail.com>"
+  "Thibaut Mattio <thibaut.mattio@gmail.com>"
+  "Max Lantas <mnxndev@outlook.com>"
+]
+license: "ISC"
+homepage: "https://github.com/ocaml/ocaml-lsp"
+bug-reports: "https://github.com/ocaml/ocaml-lsp/issues"
+depends: [
+  "dune" {>= "3.0"}
+  "jsonrpc" {= version}
+  "yojson"
+  "ppx_yojson_conv_lib" {>= "v0.14"}
+  "cinaps" {with-test}
+  "ppx_expect" {>= "v0.17.0" & with-test}
+  "uutf" {>= "1.0.2"}
+  "odoc" {with-doc}
+  "ocaml" {>= "4.14"}
+]
+dev-repo: "git+https://github.com/ocaml/ocaml-lsp.git"
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@doc" {with-doc}
+  ]
+]
+url {
+  src:
+    "https://github.com/ocaml/ocaml-lsp/releases/download/1.20.1/lsp-1.20.1.tbz"
+  checksum: [
+    "sha256=27ee54389a46701012a612dccd1f6f29ff353e348c7ba6de0fee37767dba3921"
+    "sha512=9e2d0fb2b316d0d1040e7043a7a38475217e5b727a669a1978c1850514a209ea7f7b04dbc9c7bf2654f9840d24d954f4530d5e93a807be633b487ef99c1c1b4f"
+  ]
+}
+x-commit-hash: "4c57c6ab72fdc9997e16db05ca41095c06df841c"
diff --git a/packages/ocaml-lsp-server/ocaml-lsp-server.1.20.1-4.14/opam b/packages/ocaml-lsp-server/ocaml-lsp-server.1.20.1-4.14/opam
new file mode 100644
index 00000000000..6b387fb58be
--- /dev/null
+++ b/packages/ocaml-lsp-server/ocaml-lsp-server.1.20.1-4.14/opam
@@ -0,0 +1,71 @@
+opam-version: "2.0"
+synopsis: "LSP Server for OCaml"
+description: "An LSP server for OCaml."
+maintainer: ["Rudi Grinberg <me@rgrinberg.com>"]
+authors: [
+  "Andrey Popp <8mayday@gmail.com>"
+  "Rusty Key <iam@stfoo.ru>"
+  "Louis Roché <louis@louisroche.net>"
+  "Oleksiy Golovko <alexei.golovko@gmail.com>"
+  "Rudi Grinberg <me@rgrinberg.com>"
+  "Sacha Ayoun <sachaayoun@gmail.com>"
+  "cannorin <cannorin@gmail.com>"
+  "Ulugbek Abdullaev <ulugbekna@gmail.com>"
+  "Thibaut Mattio <thibaut.mattio@gmail.com>"
+  "Max Lantas <mnxndev@outlook.com>"
+]
+license: "ISC"
+homepage: "https://github.com/ocaml/ocaml-lsp"
+bug-reports: "https://github.com/ocaml/ocaml-lsp/issues"
+depends: [
+  "dune" {>= "3.0"}
+  "yojson"
+  "base" {>= "v0.16.0"}
+  "lsp" {= "1.20.1"}
+  "jsonrpc" {= "1.20.1"}
+  "re" {>= "1.5.0"}
+  "ppx_yojson_conv_lib" {>= "v0.14"}
+  "dune-rpc" {>= "3.4.0"}
+  "chrome-trace" {>= "3.3.0"}
+  "dyn"
+  "stdune"
+  "fiber" {>= "3.1.1" & < "4.0.0"}
+  "ocaml" {>= "4.14.0" & < "5.0"}
+  "xdg"
+  "ordering"
+  "dune-build-info"
+  "spawn"
+  "astring"
+  "camlp-streams"
+  "ppx_expect" {>= "v0.15.0" & < "0.17.0" & with-test}
+  "ocamlformat" {with-test & = "0.26.2"}
+  "ocamlc-loc" {>= "3.7.0"}
+  "pp" {>= "1.1.2"}
+  "csexp" {>= "1.5"}
+  "ocamlformat-rpc-lib" {>= "0.21.0"}
+  "odoc" {with-doc}
+  "merlin-lib" {>= "4.18" & < "5.0"}
+]
+dev-repo: "git+https://github.com/ocaml/ocaml-lsp.git"
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@doc" {with-doc}
+  ]
+]
+url {
+  src:
+    "https://github.com/ocaml/ocaml-lsp/releases/download/1.20.1-4.14/lsp-1.20.1-4.14.tbz"
+  checksum: [
+    "sha256=ace96d00141e6d71156b519b2e36b8dedea7960ad923cfe940406dc807e6af59"
+    "sha512=abc56f38168c13f30e1c8a572526c187ab87d84b3df4cc20f6c7abf031f259620a303a33d39cdfe7051704d397f8b8415073e3b1920c0dcd7905db6689ca7965"
+  ]
+}
+x-commit-hash: "40c510660ced868698040ca1b480e9d237ee3845"
diff --git a/packages/ocaml-lsp-server/ocaml-lsp-server.1.20.1/opam b/packages/ocaml-lsp-server/ocaml-lsp-server.1.20.1/opam
new file mode 100644
index 00000000000..99a50b045c8
--- /dev/null
+++ b/packages/ocaml-lsp-server/ocaml-lsp-server.1.20.1/opam
@@ -0,0 +1,71 @@
+opam-version: "2.0"
+synopsis: "LSP Server for OCaml"
+description: "An LSP server for OCaml."
+maintainer: ["Rudi Grinberg <me@rgrinberg.com>"]
+authors: [
+  "Andrey Popp <8mayday@gmail.com>"
+  "Rusty Key <iam@stfoo.ru>"
+  "Louis Roché <louis@louisroche.net>"
+  "Oleksiy Golovko <alexei.golovko@gmail.com>"
+  "Rudi Grinberg <me@rgrinberg.com>"
+  "Sacha Ayoun <sachaayoun@gmail.com>"
+  "cannorin <cannorin@gmail.com>"
+  "Ulugbek Abdullaev <ulugbekna@gmail.com>"
+  "Thibaut Mattio <thibaut.mattio@gmail.com>"
+  "Max Lantas <mnxndev@outlook.com>"
+]
+license: "ISC"
+homepage: "https://github.com/ocaml/ocaml-lsp"
+bug-reports: "https://github.com/ocaml/ocaml-lsp/issues"
+depends: [
+  "dune" {>= "3.0"}
+  "yojson"
+  "base" {>= "v0.16.0"}
+  "lsp" {= version}
+  "jsonrpc" {= version}
+  "re" {>= "1.5.0"}
+  "ppx_yojson_conv_lib" {>= "v0.14"}
+  "dune-rpc" {>= "3.4.0"}
+  "chrome-trace" {>= "3.3.0"}
+  "dyn"
+  "stdune"
+  "fiber" {>= "3.1.1" & < "4.0.0"}
+  "ocaml" {>= "5.2.0" & < "5.3"}
+  "xdg"
+  "ordering"
+  "dune-build-info"
+  "spawn"
+  "astring"
+  "camlp-streams"
+  "ppx_expect" {>= "v0.17.0" & with-test}
+  "ocamlformat" {with-test & = "0.26.2"}
+  "ocamlc-loc" {>= "3.7.0"}
+  "pp" {>= "1.1.2"}
+  "csexp" {>= "1.5"}
+  "ocamlformat-rpc-lib" {>= "0.21.0"}
+  "odoc" {with-doc}
+  "merlin-lib" {>= "5.2" & < "6.0"}
+]
+dev-repo: "git+https://github.com/ocaml/ocaml-lsp.git"
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@doc" {with-doc}
+  ]
+]
+url {
+  src:
+    "https://github.com/ocaml/ocaml-lsp/releases/download/1.20.1/lsp-1.20.1.tbz"
+  checksum: [
+    "sha256=27ee54389a46701012a612dccd1f6f29ff353e348c7ba6de0fee37767dba3921"
+    "sha512=9e2d0fb2b316d0d1040e7043a7a38475217e5b727a669a1978c1850514a209ea7f7b04dbc9c7bf2654f9840d24d954f4530d5e93a807be633b487ef99c1c1b4f"
+  ]
+}
+x-commit-hash: "4c57c6ab72fdc9997e16db05ca41095c06df841c"