diff --git a/packages/functoria-runtime/functoria-runtime.2.2.5/opam b/packages/functoria-runtime/functoria-runtime.2.2.5/opam
new file mode 100644
index 00000000000..b067bbe0c52
--- /dev/null
+++ b/packages/functoria-runtime/functoria-runtime.2.2.5/opam
@@ -0,0 +1,43 @@
+opam-version: "2.0"
+maintainer:   "Gabriel Radanne <drupyog@zoho.com>"
+authors:      [ "Thomas Gazagnaire"
+                "Anil Madhavapeddy"
+                "Dave Scott"
+                "Thomas Leonard"
+                "Gabriel Radanne" ]
+homepage:     "https://github.com/mirage/functoria"
+bug-reports:  "https://github.com/mirage/functoria/issues"
+dev-repo:     "git+https://github.com/mirage/functoria.git"
+doc:          "https://mirage.github.io/functoria/"
+license:      "ISC"
+tags:         ["org:mirage"]
+
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  # do not run the tests in parallel as it uses side-effects
+  ["dune" "runtest" "-p" name "-j" "1"] {with-test}
+]
+
+depends: [
+  "ocaml" {>= "4.03.0"}
+  "dune"
+  "cmdliner" {>= "0.9.8"}
+  "fmt"
+  "functoria" {with-test & >= "2.2.0" & < "3.0.0"}
+  "alcotest"  {with-test}
+  "dune" {with-test & <= "1.5.1"}
+]
+
+synopsis: "Runtime support library for functoria-generated code"
+description: """
+This is the runtime support library for code generated by functoria.
+"""
+url {
+  src:
+    "https://github.com/mirage/functoria/releases/download/v2.2.5/functoria-v2.2.5.tbz"
+  checksum: [
+    "sha256=c88b955e7fea642c76aac297c63550c969a1be41f437d37d7dc59cac1b82aadd"
+    "sha512=c5c1d94031b9cd5367f6a8a5ee5c5e854971c4af16f6a9f489280c8c179739c5841531c0710eefb8e920c3bdf22ba64e7d6ff2e9ebfc2be4cce6e80dde804505"
+  ]
+}
diff --git a/packages/functoria/functoria.2.2.5/opam b/packages/functoria/functoria.2.2.5/opam
new file mode 100644
index 00000000000..c32b6e8865d
--- /dev/null
+++ b/packages/functoria/functoria.2.2.5/opam
@@ -0,0 +1,51 @@
+opam-version: "2.0"
+maintainer:   "Gabriel Radanne <drupyog@zoho.com>"
+authors:      [ "Thomas Gazagnaire"
+                "Anil Madhavapeddy"
+                "Dave Scott"
+                "Thomas Leonard"
+                "Gabriel Radanne" ]
+homepage:     "https://github.com/mirage/functoria"
+bug-reports:  "https://github.com/mirage/functoria/issues"
+dev-repo:     "git+https://github.com/mirage/functoria.git"
+doc:          "https://mirage.github.io/functoria/"
+license:      "ISC"
+tags:         ["org:mirage"]
+
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test}
+]
+
+depends: [
+  "ocaml" {>= "4.03.0"}
+  "dune"
+  "base-unix"
+  "cmdliner" {>= "0.9.8"}
+  "rresult"
+  "astring"
+  "fmt"
+  "ocamlgraph"
+  "logs"
+  "bos"
+  "fpath"
+  "alcotest" {with-test}
+  "ptime"
+]
+synopsis: "A DSL to organize functor applications"
+description: """
+Functoria is a DSL to describe a set of modules and functors, their types and
+how to apply them in order to produce a complete application.
+
+The main use case is mirage. See the [mirage](https://github.com/mirage/mirage)
+repository for details.
+"""
+url {
+  src:
+    "https://github.com/mirage/functoria/releases/download/v2.2.5/functoria-v2.2.5.tbz"
+  checksum: [
+    "sha256=c88b955e7fea642c76aac297c63550c969a1be41f437d37d7dc59cac1b82aadd"
+    "sha512=c5c1d94031b9cd5367f6a8a5ee5c5e854971c4af16f6a9f489280c8c179739c5841531c0710eefb8e920c3bdf22ba64e7d6ff2e9ebfc2be4cce6e80dde804505"
+  ]
+}