diff --git a/packages/cohttp-async/cohttp-async.1.2.0/opam b/packages/cohttp-async/cohttp-async.1.2.0/opam
new file mode 100644
index 000000000000..be9973b559e7
--- /dev/null
+++ b/packages/cohttp-async/cohttp-async.1.2.0/opam
@@ -0,0 +1,70 @@
+opam-version: "2.0"
+synopsis: "An OCaml library for HTTP clients and servers"
+description: """
+[![Join the chat at https://gitter.im/mirage/ocaml-cohttp](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/mirage/ocaml-cohttp?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+Cohttp is an OCaml library for creating HTTP daemons. It has a portable
+HTTP parser, and implementations using various asynchronous programming
+libraries:
+
+* `Cohttp_lwt_unix` uses the [Lwt](https://ocsigen.org/lwt/) library, and
+  specifically the UNIX bindings.
+* `Cohttp_async` uses the [Async](https://realworldocaml.org/v1/en/html/concurrent-programming-with-async.html)
+  library.
+* `Cohttp_lwt` exposes an OS-independent Lwt interface, which is used
+  by the [Mirage](https://mirage.io/) interface to generate standalone
+  microkernels (use the cohttp-mirage subpackage).
+* `Cohttp_lwt_xhr` compiles to a JavaScript module that maps the Cohttp
+  calls to XMLHTTPRequests.  This is used to compile OCaml libraries like
+  the GitHub bindings to JavaScript and still run efficiently.
+
+You can implement other targets using the parser very easily. Look at the `IO`
+signature in `lib/s.mli` and implement that in the desired backend.
+
+You can activate some runtime debugging by setting `COHTTP_DEBUG` to any
+value, and all requests and responses will be written to stderr.  Further
+debugging of the connection layer can be obtained by setting `CONDUIT_DEBUG`
+to any value."""
+maintainer: "anil@recoil.org"
+authors: [
+  "Anil Madhavapeddy"
+  "Stefano Zacchiroli"
+  "David Sheets"
+  "Thomas Gazagnaire"
+  "David Scott"
+  "Rudi Grinberg"
+  "Andy Ray"
+]
+license: "ISC"
+tags: ["org:mirage" "org:xapi-project"]
+homepage: "https://github.com/mirage/ocaml-cohttp"
+doc: "https://mirage.github.io/ocaml-cohttp/"
+bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
+depends: [
+  "ocaml" {>= "4.04.1"}
+  "dune" {build & >= "1.1.0"}
+  "async_kernel" {>= "v0.11.0"}
+  "async_unix" {>= "v0.11.0"}
+  "async_extra" {>= "v0.11.0"}
+  "base" {>= "v0.11.0"}
+  "core" {with-test}
+  "cohttp"
+  "conduit-async" {>= "1.0.3"}
+  "magic-mime"
+  "logs"
+  "fmt" {>= "0.8.2"}
+  "sexplib0"
+  "ppx_sexp_conv" {>= "v0.9.0"}
+  "ounit" {with-test}
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test & os != "macos"}
+]
+dev-repo: "git+https://github.com/mirage/ocaml-cohttp.git"
+url {
+  src:
+    "https://github.com/mirage/ocaml-cohttp/releases/download/v1.2.0/cohttp-v1.2.0.tbz"
+  checksum: "md5=7aa3d4582848afff9a62f866b23173e1"
+}
diff --git a/packages/cohttp-lwt-jsoo/cohttp-lwt-jsoo.1.2.0/opam b/packages/cohttp-lwt-jsoo/cohttp-lwt-jsoo.1.2.0/opam
new file mode 100644
index 000000000000..a2403c2eb22c
--- /dev/null
+++ b/packages/cohttp-lwt-jsoo/cohttp-lwt-jsoo.1.2.0/opam
@@ -0,0 +1,67 @@
+opam-version: "2.0"
+synopsis: "An OCaml library for HTTP clients and servers"
+description: """
+[![Join the chat at https://gitter.im/mirage/ocaml-cohttp](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/mirage/ocaml-cohttp?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+Cohttp is an OCaml library for creating HTTP daemons. It has a portable
+HTTP parser, and implementations using various asynchronous programming
+libraries:
+
+* `Cohttp_lwt_unix` uses the [Lwt](https://ocsigen.org/lwt/) library, and
+  specifically the UNIX bindings.
+* `Cohttp_async` uses the [Async](https://realworldocaml.org/v1/en/html/concurrent-programming-with-async.html)
+  library.
+* `Cohttp_lwt` exposes an OS-independent Lwt interface, which is used
+  by the [Mirage](https://mirage.io/) interface to generate standalone
+  microkernels (use the cohttp-mirage subpackage).
+* `Cohttp_lwt_xhr` compiles to a JavaScript module that maps the Cohttp
+  calls to XMLHTTPRequests.  This is used to compile OCaml libraries like
+  the GitHub bindings to JavaScript and still run efficiently.
+
+You can implement other targets using the parser very easily. Look at the `IO`
+signature in `lib/s.mli` and implement that in the desired backend.
+
+You can activate some runtime debugging by setting `COHTTP_DEBUG` to any
+value, and all requests and responses will be written to stderr.  Further
+debugging of the connection layer can be obtained by setting `CONDUIT_DEBUG`
+to any value."""
+maintainer: "anil@recoil.org"
+authors: [
+  "Anil Madhavapeddy"
+  "Stefano Zacchiroli"
+  "David Sheets"
+  "Thomas Gazagnaire"
+  "David Scott"
+  "Rudi Grinberg"
+  "Andy Ray"
+]
+license: "ISC"
+tags: ["org:mirage" "org:xapi-project"]
+homepage: "https://github.com/mirage/ocaml-cohttp"
+doc: "https://mirage.github.io/ocaml-cohttp/"
+bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
+depends: [
+  "ocaml" {>= "4.04.1"}
+  "dune" {build & >= "1.1.0"}
+  "cohttp" {>= "1.0.0"}
+  "cohttp-lwt" {>= "1.0.0"}
+  "lwt" {>= "3.0.0"}
+  "js_of_ocaml" {>= "3.0"}
+  "js_of_ocaml-ppx" {>= "3.0"}
+  "js_of_ocaml-lwt"
+]
+conflicts: [
+  "lwt" {< "2.5.0"}
+  "js_of_ocaml" {< "2.8"}
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test}
+]
+dev-repo: "git+https://github.com/mirage/ocaml-cohttp.git"
+url {
+  src:
+    "https://github.com/mirage/ocaml-cohttp/releases/download/v1.2.0/cohttp-v1.2.0.tbz"
+  checksum: "md5=7aa3d4582848afff9a62f866b23173e1"
+}
\ No newline at end of file
diff --git a/packages/cohttp-lwt-unix/cohttp-lwt-unix.1.2.0/opam b/packages/cohttp-lwt-unix/cohttp-lwt-unix.1.2.0/opam
new file mode 100644
index 000000000000..e02c8aa82450
--- /dev/null
+++ b/packages/cohttp-lwt-unix/cohttp-lwt-unix.1.2.0/opam
@@ -0,0 +1,69 @@
+opam-version: "2.0"
+synopsis: "An OCaml library for HTTP clients and servers"
+description: """
+[![Join the chat at https://gitter.im/mirage/ocaml-cohttp](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/mirage/ocaml-cohttp?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+Cohttp is an OCaml library for creating HTTP daemons. It has a portable
+HTTP parser, and implementations using various asynchronous programming
+libraries:
+
+* `Cohttp_lwt_unix` uses the [Lwt](https://ocsigen.org/lwt/) library, and
+  specifically the UNIX bindings.
+* `Cohttp_async` uses the [Async](https://realworldocaml.org/v1/en/html/concurrent-programming-with-async.html)
+  library.
+* `Cohttp_lwt` exposes an OS-independent Lwt interface, which is used
+  by the [Mirage](https://mirage.io/) interface to generate standalone
+  microkernels (use the cohttp-mirage subpackage).
+* `Cohttp_lwt_xhr` compiles to a JavaScript module that maps the Cohttp
+  calls to XMLHTTPRequests.  This is used to compile OCaml libraries like
+  the GitHub bindings to JavaScript and still run efficiently.
+
+You can implement other targets using the parser very easily. Look at the `IO`
+signature in `lib/s.mli` and implement that in the desired backend.
+
+You can activate some runtime debugging by setting `COHTTP_DEBUG` to any
+value, and all requests and responses will be written to stderr.  Further
+debugging of the connection layer can be obtained by setting `CONDUIT_DEBUG`
+to any value."""
+maintainer: "anil@recoil.org"
+authors: [
+  "Anil Madhavapeddy"
+  "Stefano Zacchiroli"
+  "David Sheets"
+  "Thomas Gazagnaire"
+  "David Scott"
+  "Rudi Grinberg"
+  "Andy Ray"
+]
+license: "ISC"
+tags: ["org:mirage" "org:xapi-project"]
+homepage: "https://github.com/mirage/ocaml-cohttp"
+doc: "https://mirage.github.io/ocaml-cohttp/"
+bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
+depends: [
+  "ocaml" {>= "4.04.1"}
+  "dune" {build & >= "1.1.0"}
+  "conduit-lwt-unix" {>= "1.0.3"}
+  "cmdliner"
+  "magic-mime"
+  "logs"
+  "fmt" {>= "0.8.2"}
+  "cohttp-lwt"
+  "lwt" {>= "3.0.0"}
+  "base-unix"
+  "ounit" {with-test}
+]
+conflicts: [
+  "lwt" {< "2.5.0"}
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test & os != "macos"}
+]
+dev-repo: "git+https://github.com/mirage/ocaml-cohttp.git"
+url {
+  src:
+    "https://github.com/mirage/ocaml-cohttp/releases/download/v1.2.0/cohttp-v1.2.0.tbz"
+  checksum: "md5=7aa3d4582848afff9a62f866b23173e1"
+}
diff --git a/packages/cohttp-lwt/cohttp-lwt.1.2.0/opam b/packages/cohttp-lwt/cohttp-lwt.1.2.0/opam
new file mode 100644
index 000000000000..b9b9081393eb
--- /dev/null
+++ b/packages/cohttp-lwt/cohttp-lwt.1.2.0/opam
@@ -0,0 +1,64 @@
+opam-version: "2.0"
+synopsis: "An OCaml library for HTTP clients and servers"
+description: """
+[![Join the chat at https://gitter.im/mirage/ocaml-cohttp](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/mirage/ocaml-cohttp?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+Cohttp is an OCaml library for creating HTTP daemons. It has a portable
+HTTP parser, and implementations using various asynchronous programming
+libraries:
+
+* `Cohttp_lwt_unix` uses the [Lwt](https://ocsigen.org/lwt/) library, and
+  specifically the UNIX bindings.
+* `Cohttp_async` uses the [Async](https://realworldocaml.org/v1/en/html/concurrent-programming-with-async.html)
+  library.
+* `Cohttp_lwt` exposes an OS-independent Lwt interface, which is used
+  by the [Mirage](https://mirage.io/) interface to generate standalone
+  microkernels (use the cohttp-mirage subpackage).
+* `Cohttp_lwt_xhr` compiles to a JavaScript module that maps the Cohttp
+  calls to XMLHTTPRequests.  This is used to compile OCaml libraries like
+  the GitHub bindings to JavaScript and still run efficiently.
+
+You can implement other targets using the parser very easily. Look at the `IO`
+signature in `lib/s.mli` and implement that in the desired backend.
+
+You can activate some runtime debugging by setting `COHTTP_DEBUG` to any
+value, and all requests and responses will be written to stderr.  Further
+debugging of the connection layer can be obtained by setting `CONDUIT_DEBUG`
+to any value."""
+maintainer: "anil@recoil.org"
+authors: [
+  "Anil Madhavapeddy"
+  "Stefano Zacchiroli"
+  "David Sheets"
+  "Thomas Gazagnaire"
+  "David Scott"
+  "Rudi Grinberg"
+  "Andy Ray"
+]
+license: "ISC"
+tags: ["org:mirage" "org:xapi-project"]
+homepage: "https://github.com/mirage/ocaml-cohttp"
+doc: "https://mirage.github.io/ocaml-cohttp/"
+bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
+depends: [
+  "ocaml" {>= "4.04.1"}
+  "dune" {build & >= "1.1.0"}
+  "cohttp" {>= "1.0.0"}
+  "lwt"
+  "sexplib0"
+  "ppx_sexp_conv" {>= "v0.9.0"}
+]
+conflicts: [
+  "lwt" {< "2.5.0"}
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test}
+]
+dev-repo: "git+https://github.com/mirage/ocaml-cohttp.git"
+url {
+  src:
+    "https://github.com/mirage/ocaml-cohttp/releases/download/v1.2.0/cohttp-v1.2.0.tbz"
+  checksum: "md5=7aa3d4582848afff9a62f866b23173e1"
+}
\ No newline at end of file
diff --git a/packages/cohttp-mirage/cohttp-mirage.1.2.0/opam b/packages/cohttp-mirage/cohttp-mirage.1.2.0/opam
new file mode 100644
index 000000000000..a05c5e954d80
--- /dev/null
+++ b/packages/cohttp-mirage/cohttp-mirage.1.2.0/opam
@@ -0,0 +1,59 @@
+opam-version: "2.0"
+synopsis: "An OCaml library for HTTP clients and servers"
+description: """
+[![Join the chat at https://gitter.im/mirage/ocaml-cohttp](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/mirage/ocaml-cohttp?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+Cohttp is an OCaml library for creating HTTP daemons. It has a portable
+HTTP parser, and implementations using various asynchronous programming
+libraries:
+
+* `Cohttp_lwt_unix` uses the [Lwt](https://ocsigen.org/lwt/) library, and
+  specifically the UNIX bindings.
+* `Cohttp_async` uses the [Async](https://realworldocaml.org/v1/en/html/concurrent-programming-with-async.html)
+  library.
+* `Cohttp_lwt` exposes an OS-independent Lwt interface, which is used
+  by the [Mirage](https://mirage.io/) interface to generate standalone
+  microkernels (use the cohttp-mirage subpackage).
+* `Cohttp_lwt_xhr` compiles to a JavaScript module that maps the Cohttp
+  calls to XMLHTTPRequests.  This is used to compile OCaml libraries like
+  the GitHub bindings to JavaScript and still run efficiently.
+
+You can implement other targets using the parser very easily. Look at the `IO`
+signature in `lib/s.mli` and implement that in the desired backend.
+
+You can activate some runtime debugging by setting `COHTTP_DEBUG` to any
+value, and all requests and responses will be written to stderr.  Further
+debugging of the connection layer can be obtained by setting `CONDUIT_DEBUG`
+to any value."""
+maintainer: "anil@recoil.org"
+authors: ["Anil Madhavapeddy" "Thomas Gazagnaire"]
+license: "ISC"
+tags: ["org:mirage" "org:xapi-project"]
+homepage: "https://github.com/mirage/ocaml-cohttp"
+doc: "https://mirage.github.io/ocaml-cohttp/"
+bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
+depends: [
+  "ocaml" {>= "4.04.1"}
+  "dune" {build & >= "1.1.0"}
+  "result"
+  "mirage-flow-lwt" {>= "1.2.0"}
+  "mirage-channel-lwt" {>= "3.0.0"}
+  "conduit" {>= "0.99"}
+  "mirage-conduit" {>= "3.0.0"}
+  "lwt" {>= "2.4.3"}
+  "cohttp"
+  "cohttp-lwt"
+  "astring"
+  "magic-mime"
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test}
+]
+dev-repo: "git+https://github.com/mirage/ocaml-cohttp.git"
+url {
+  src:
+    "https://github.com/mirage/ocaml-cohttp/releases/download/v1.2.0/cohttp-v1.2.0.tbz"
+  checksum: "md5=7aa3d4582848afff9a62f866b23173e1"
+}
\ No newline at end of file
diff --git a/packages/cohttp-top/cohttp-top.1.2.0/opam b/packages/cohttp-top/cohttp-top.1.2.0/opam
new file mode 100644
index 000000000000..5c3e710c6434
--- /dev/null
+++ b/packages/cohttp-top/cohttp-top.1.2.0/opam
@@ -0,0 +1,58 @@
+opam-version: "2.0"
+synopsis: "An OCaml library for HTTP clients and servers"
+description: """
+[![Join the chat at https://gitter.im/mirage/ocaml-cohttp](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/mirage/ocaml-cohttp?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+Cohttp is an OCaml library for creating HTTP daemons. It has a portable
+HTTP parser, and implementations using various asynchronous programming
+libraries:
+
+* `Cohttp_lwt_unix` uses the [Lwt](https://ocsigen.org/lwt/) library, and
+  specifically the UNIX bindings.
+* `Cohttp_async` uses the [Async](https://realworldocaml.org/v1/en/html/concurrent-programming-with-async.html)
+  library.
+* `Cohttp_lwt` exposes an OS-independent Lwt interface, which is used
+  by the [Mirage](https://mirage.io/) interface to generate standalone
+  microkernels (use the cohttp-mirage subpackage).
+* `Cohttp_lwt_xhr` compiles to a JavaScript module that maps the Cohttp
+  calls to XMLHTTPRequests.  This is used to compile OCaml libraries like
+  the GitHub bindings to JavaScript and still run efficiently.
+
+You can implement other targets using the parser very easily. Look at the `IO`
+signature in `lib/s.mli` and implement that in the desired backend.
+
+You can activate some runtime debugging by setting `COHTTP_DEBUG` to any
+value, and all requests and responses will be written to stderr.  Further
+debugging of the connection layer can be obtained by setting `CONDUIT_DEBUG`
+to any value."""
+maintainer: "anil@recoil.org"
+authors: [
+  "Anil Madhavapeddy"
+  "Stefano Zacchiroli"
+  "David Sheets"
+  "Thomas Gazagnaire"
+  "David Scott"
+  "Rudi Grinberg"
+  "Andy Ray"
+]
+license: "ISC"
+tags: ["org:mirage" "org:xapi-project"]
+homepage: "https://github.com/mirage/ocaml-cohttp"
+doc: "https://mirage.github.io/ocaml-cohttp/"
+bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
+depends: [
+  "ocaml" {>= "4.04.1"}
+  "dune" {build & >= "1.1.0"}
+  "cohttp"
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test}
+]
+dev-repo: "git+https://github.com/mirage/ocaml-cohttp.git"
+url {
+  src:
+    "https://github.com/mirage/ocaml-cohttp/releases/download/v1.2.0/cohttp-v1.2.0.tbz"
+  checksum: "md5=7aa3d4582848afff9a62f866b23173e1"
+}
\ No newline at end of file
diff --git a/packages/cohttp/cohttp.1.2.0/opam b/packages/cohttp/cohttp.1.2.0/opam
new file mode 100644
index 000000000000..3f5742c4b845
--- /dev/null
+++ b/packages/cohttp/cohttp.1.2.0/opam
@@ -0,0 +1,68 @@
+opam-version: "2.0"
+synopsis: "An OCaml library for HTTP clients and servers"
+description: """
+[![Join the chat at https://gitter.im/mirage/ocaml-cohttp](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/mirage/ocaml-cohttp?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+Cohttp is an OCaml library for creating HTTP daemons. It has a portable
+HTTP parser, and implementations using various asynchronous programming
+libraries:
+
+* `Cohttp_lwt_unix` uses the [Lwt](https://ocsigen.org/lwt/) library, and
+  specifically the UNIX bindings.
+* `Cohttp_async` uses the [Async](https://realworldocaml.org/v1/en/html/concurrent-programming-with-async.html)
+  library.
+* `Cohttp_lwt` exposes an OS-independent Lwt interface, which is used
+  by the [Mirage](https://mirage.io/) interface to generate standalone
+  microkernels (use the cohttp-mirage subpackage).
+* `Cohttp_lwt_xhr` compiles to a JavaScript module that maps the Cohttp
+  calls to XMLHTTPRequests.  This is used to compile OCaml libraries like
+  the GitHub bindings to JavaScript and still run efficiently.
+
+You can implement other targets using the parser very easily. Look at the `IO`
+signature in `lib/s.mli` and implement that in the desired backend.
+
+You can activate some runtime debugging by setting `COHTTP_DEBUG` to any
+value, and all requests and responses will be written to stderr.  Further
+debugging of the connection layer can be obtained by setting `CONDUIT_DEBUG`
+to any value."""
+maintainer: "anil@recoil.org"
+authors: [
+  "Anil Madhavapeddy"
+  "Stefano Zacchiroli"
+  "David Sheets"
+  "Thomas Gazagnaire"
+  "David Scott"
+  "Rudi Grinberg"
+  "Andy Ray"
+]
+license: "ISC"
+tags: ["org:mirage" "org:xapi-project"]
+homepage: "https://github.com/mirage/ocaml-cohttp"
+doc: "https://mirage.github.io/ocaml-cohttp/"
+bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
+depends: [
+  "ocaml" {>= "4.04.1"}
+  "dune" {build & >= "1.1.0"}
+  "re" {>= "1.7.2"}
+  "uri" {>= "2.0.0"}
+  "fieldslib"
+  "sexplib0"
+  "ppx_fields_conv" {>= "v0.9.0"}
+  "ppx_sexp_conv" {>= "v0.9.0"}
+  "stringext"
+  "base64" {>= "2.0.0"}
+  "fmt" {with-test}
+  "jsonm" {build}
+  "alcotest" {with-test}
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test}
+]
+dev-repo: "git+https://github.com/mirage/ocaml-cohttp.git"
+url {
+  src:
+    "https://github.com/mirage/ocaml-cohttp/releases/download/v1.2.0/cohttp-v1.2.0.tbz"
+  checksum: "md5=7aa3d4582848afff9a62f866b23173e1"
+}
\ No newline at end of file