diff --git a/packages/flux/flux.0.0.1~beta1/opam b/packages/flux/flux.0.0.1~beta1/opam
new file mode 100644
index 00000000000..57ad48fc962
--- /dev/null
+++ b/packages/flux/flux.0.0.1~beta1/opam
@@ -0,0 +1,35 @@
+opam-version: "2.0"
+maintainer:   "Romain Calascibetta <romain.calascibetta@gmail.com>"
+authors:
+  [ "Romain Calascibetta <romain.calascibetta@gmail.com>"
+    "Rizo I <rizo@odis.io>" ]
+homepage:     "https://github.com/robur-coop/flux"
+bug-reports:  "https://github.com/robur-coop/flux/issues"
+dev-repo:     "git+https://github.com/robur-coop/flux.git"
+doc:          "https://robur-coop.github.io/flux/"
+license:      "MIT"
+synopsis:     "Composable streaming abstractions with Miou"
+
+build: [ "dune" "build" "-p" name "-j" jobs ]
+run-test: [ "dune" "runtest" "-p" name "-j" jobs ]
+
+depends: [
+  "ocaml"                       {>= "5.0.0"}
+  "dune"                        {>= "3.20.0"}
+  "miou"                        {>= "0.5.0"}
+  "ocamlformat"                 {with-dev-setup & = "0.27.0"}
+  "httpcats"                    {with-dev-setup}
+  "mirage-crypto-rng-miou-unix" {with-dev-setup}
+  "alcotest"                    {with-test}
+]
+x-maintenance-intent: [ "(latest)" ]
+url {
+  src:
+    "https://github.com/robur-coop/flux/releases/download/v0.0.1_beta1/flux-0.0.1.beta1.tbz"
+  checksum: [
+    "sha256=ad74df51aaf796f4ed14f56296380a3aa795a8d6f9217b6383c9ac833ff334fc"
+    "sha512=4d03ef0130a0df993dd3e1c879c45162e57f48c2535f115f23e572214f365a7a052056c89661b4d7bc198209c0adf57dae6f96ea82b6b5c5f30223b653a29f5c"
+  ]
+}
+x-commit-hash: "cccadc0b660d4f98256e95b2f68ae0ac4899216a"
+available: os-family != "windows"
diff --git a/packages/fluxt/fluxt.0.0.1~beta1/opam b/packages/fluxt/fluxt.0.0.1~beta1/opam
new file mode 100644
index 00000000000..a7559deb323
--- /dev/null
+++ b/packages/fluxt/fluxt.0.0.1~beta1/opam
@@ -0,0 +1,35 @@
+opam-version: "2.0"
+maintainer:   "Romain Calascibetta <romain.calascibetta@gmail.com>"
+authors:      "Romain Calascibetta <romain.calascibetta@gmail.com>"
+homepage:     "https://github.com/robur-coop/flux"
+bug-reports:  "https://github.com/robur-coop/flux/issues"
+dev-repo:     "git+https://github.com/robur-coop/flux.git"
+doc:          "https://robur-coop.github.io/flux/"
+license:      "MIT"
+synopsis:     "Extensions of flux to provide basic streams (compression, hash, format)"
+
+build: [ "dune" "build" "-p" name "-j" jobs ]
+run-test: [ "dune" "runtest" "-p" name "-j" jobs ]
+
+depends: [
+  "ocaml"             {>= "5.2.0"}
+  "dune"              {>= "2.8.0"}
+  "miou"              {>= "0.5.0"}
+  "decompress"
+  "tar"               {>= "3.3.0"}
+  "bstr"
+  "digestif"          {>= "1.3.0"}
+  "flux"              {= version}
+  "ocamlformat"       {with-dev-setup & = "0.27.0"}
+  "alcotest"          {with-test}
+]
+x-maintenance-intent: [ "(latest)" ]
+url {
+  src:
+    "https://github.com/robur-coop/flux/releases/download/v0.0.1_beta1/flux-0.0.1.beta1.tbz"
+  checksum: [
+    "sha256=ad74df51aaf796f4ed14f56296380a3aa795a8d6f9217b6383c9ac833ff334fc"
+    "sha512=4d03ef0130a0df993dd3e1c879c45162e57f48c2535f115f23e572214f365a7a052056c89661b4d7bc198209c0adf57dae6f96ea82b6b5c5f30223b653a29f5c"
+  ]
+}
+x-commit-hash: "cccadc0b660d4f98256e95b2f68ae0ac4899216a"