diff --git a/.gitignore b/.gitignore
index 3bf9025ae..7483d1710 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 /_build/
 /dune-project
+*~
+cache/*
diff --git a/index.tar.gz b/index.tar.gz
new file mode 100644
index 000000000..145e1522a
Binary files /dev/null and b/index.tar.gz differ
diff --git a/packages/bip39/bip39.dev/opam b/packages/bip39/bip39.dev/opam
new file mode 100644
index 000000000..7e56ad689
--- /dev/null
+++ b/packages/bip39/bip39.dev/opam
@@ -0,0 +1,29 @@
+opam-version: "2.0"
+name: "bip39"
+version: "dev"
+maintainer: "Vincent Bernardoff <vb@luminar.eu.org>"
+authors: ["Vincent Bernardoff <vb@luminar.eu.org>"]
+homepage: "https://github.com/vbmithr/ocaml-bip39"
+doc: "https://vbmithr.github.io/ocaml-bip39/doc"
+synopsis: "Bitcoin's BIP39 implementation"
+license: "ISC"
+dev-repo: "git+https://github.com/vbmithr/ocaml-bip39.git"
+bug-reports: "https://github.com/vbmithr/ocaml-bip39/issues"
+tags: []
+build: [
+  [ "dune" "build" "-j" jobs "-p" name "@install" ]
+  [ "mv" "vendors/ocaml-bip39/bip39.install" "." ]
+]
+depends: [
+  "dune" {build & >= "1.0.1"}
+  "base" {build & >= "v0.10.0"}
+  "stdio" {build & >= "v0.10.0"}
+  "hacl"
+  "bigstring" {>= "0.2"}
+  "pbkdf" {>= "0.2.0"}
+  "hex" {with-test & >= "1.2.0"}
+  "alcotest" {with-test & >= "0.8.1"}
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/blake2/blake2.dev/opam b/packages/blake2/blake2.dev/opam
new file mode 100644
index 000000000..f8aa19474
--- /dev/null
+++ b/packages/blake2/blake2.dev/opam
@@ -0,0 +1,24 @@
+version: "dev"
+opam-version: "2.0"
+name: "blake2"
+authors: "Vincent Bernardoff <vb@luminar.eu.org>"
+maintainer: "Vincent Bernardoff <vb@luminar.eu.org>"
+license: "ISC"
+synopsis: "Cryptography for Tezos"
+homepage: "https://github.com/vbmithr/ocaml-blake2"
+bug-reports: "https://github.com/vbmithr/ocaml-blake2/issues"
+dev-repo: "git://github.com/vbmithr/ocaml-blake2"
+build: [
+  [ "dune" "build" "-j" jobs "-p" name "@install" ]
+  [ "mv" "vendors/ocaml-blake2/blake2.install" "." ]
+]
+run-test: [ "dune" "runtest" "-p" name "-j" jobs ]
+depends: [
+  "dune" {build & >= "1.0.1"}
+  "bigstring" {>= "0.1.1"}
+  "alcotest" { with-test }
+  "hex" {with-test & >= "1.2.0"}
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/hacl/hacl.dev/opam b/packages/hacl/hacl.dev/opam
new file mode 100644
index 000000000..f01764179
--- /dev/null
+++ b/packages/hacl/hacl.dev/opam
@@ -0,0 +1,28 @@
+version: "dev"
+opam-version: "2.0"
+name: "hacl"
+authors: [ "Vincent Bernardoff <vb@luminar.eu.org>" "Marco Stronati <marco@stronati.org>" ]
+maintainer: "Vincent Bernardoff <vb@luminar.eu.org>"
+synopsis: "Tezos binding for Hacl*"
+homepage: "https://gitlab.com/tezos/tezos"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "dune" {build & >= "1.0.1"}
+  "bigstring" {>= "0.1.1"}
+  "ocplib-endian" {>= "1.0"}
+  "zarith" {>= "1.7"}
+  "alcotest" {with-test & >= "0.8.1"}
+  "hex" {with-test & >= "1.2.0"}
+  "base"
+  "stdio"
+]
+build: [
+  [ "dune" "build" "-j" jobs "-p" name "@install" ]
+  [ "mv" "vendors/ocaml-hacl/hacl.install" "." ]
+]
+run-test: [ "dune" "runtest" "-p" name "-j" jobs ]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/irmin-lmdb/irmin-lmdb.dev/opam b/packages/irmin-lmdb/irmin-lmdb.dev/opam
new file mode 100644
index 000000000..9f41a8c3f
--- /dev/null
+++ b/packages/irmin-lmdb/irmin-lmdb.dev/opam
@@ -0,0 +1,27 @@
+version: "dev"
+name: "irmin-lmdb"
+opam-version: "2.0"
+maintainer:   "gregoire.henry@tezos.com"
+authors:      ["Grégoire Henry"]
+license:      "ISC"
+homepage:     "https://gitlab.com/tezos/irmin-lmdb"
+bug-reports:  "https://gitlab.com/tezos/irmin-lmdb/issues"
+dev-repo:     "git+https://gitlab.com/tezos/irmin-lmdb.git"
+doc:          "https://tezos.gitlab.io/irmin-lmdb/"
+synopsis:     "LMDB backend for Irmin"
+
+build: [
+ ["dune" "subst"] {pinned}
+ ["dune" "build" "-p" name "-j" jobs]
+  [ "mv" "vendors/irmin-lmdb/irmin-lmdb.install" "." ]
+]
+run-test: ["dune" "runtest" "-p" name]
+
+depends: [
+  "dune" {build & >= "1.0.1"}
+  "irmin"    {>= "1.4.0"}
+  "lmdb"     {>= "0.1"}
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/ledgerwallet-tezos/ledgerwallet-tezos.dev/opam b/packages/ledgerwallet-tezos/ledgerwallet-tezos.dev/opam
new file mode 100644
index 000000000..c39c6c3ff
--- /dev/null
+++ b/packages/ledgerwallet-tezos/ledgerwallet-tezos.dev/opam
@@ -0,0 +1,22 @@
+version: "dev"
+opam-version: "2.0"
+name: "ledgerwallet-tezos"
+authors: "Vincent Bernardoff <vb@luminar.eu.org>"
+maintainer: "Vincent Bernardoff <vb@luminar.eu.org>"
+license: "ISC"
+synopsis: "Ledger wallet library for OCaml: Tezos app"
+homepage: "https://github.com/vbmithr/ocaml-ledger-wallet"
+bug-reports: "https://github.com/vbmithr/ocaml-ledger-wallet/issues"
+dev-repo: "git://github.com/vbmithr/ocaml-ledger-wallet"
+build: [
+  [ "dune" "build" "-j" jobs "-p" name "@install" ]
+  [ "mv" "vendors/ocaml-ledger-wallet/ledgerwallet-tezos.install" "." ]
+]
+run-test: [ "dune" "runtest" "-p" name "-j" jobs ]
+depends: [
+  "dune" {build & >= "1.0.1"}
+  "ledgerwallet" {= "dev"}
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/ledgerwallet/ledgerwallet.dev/opam b/packages/ledgerwallet/ledgerwallet.dev/opam
new file mode 100644
index 000000000..fa35e8d93
--- /dev/null
+++ b/packages/ledgerwallet/ledgerwallet.dev/opam
@@ -0,0 +1,24 @@
+opam-version: "2.0"
+version: "dev"
+name: "ledgerwallet"
+authors: "Vincent Bernardoff <vb@luminar.eu.org>"
+maintainer: "Vincent Bernardoff <vb@luminar.eu.org>"
+license: "ISC"
+synopsis: "Ledger wallet library for OCaml"
+homepage: "https://github.com/vbmithr/ocaml-ledger-wallet"
+bug-reports: "https://github.com/vbmithr/ocaml-ledger-wallet/issues"
+dev-repo: "git://github.com/vbmithr/ocaml-ledger-wallet"
+build: [
+  [ "dune" "build" "-j" jobs "-p" name "@install" ]
+  [ "mv" "vendors/ocaml-ledger-wallet/ledgerwallet.install" "." ]
+]
+run-test: [ "dune" "runtest" "-p" name "-j" jobs ]
+depends: [
+  "dune" {build & >= "1.0.1"}
+  "rresult" {>= "0.5.0"}
+  "cstruct" {>= "3.2.1"}
+  "hidapi" {>= "1.0"}
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/ligo/ligo.dev/opam b/packages/ligo/ligo.dev/opam
new file mode 100644
index 000000000..4b28508c8
--- /dev/null
+++ b/packages/ligo/ligo.dev/opam
@@ -0,0 +1,28 @@
+version: "dev"
+name: "ligo"
+opam-version: "2.0"
+maintainer: "ligolang@gmail.com"
+authors: [ "Galfour" ]
+homepage: "https://gitlab.com/ligolang/tezos"
+bug-reports: "https://gitlab.com/ligolang/tezos/issues"
+synopsis: "A higher-level language which compiles to Michelson"
+dev-repo: "git+https://gitlab.com/ligolang/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "menhir"
+  "ppx_let"
+  "ppx_deriving"
+  "tezos-utils"
+  "proto-alpha-utils"
+  "yojson"
+  "alcotest" { with-test }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/ligo.install" "." ]
+]
+url {
+  src: "https://gitlab.com/ligolang/ligo/-/archive/master/ligo.tar.gz"
+}
diff --git a/packages/lmdb/lmdb.dev/opam b/packages/lmdb/lmdb.dev/opam
new file mode 100644
index 000000000..7f0f42bae
--- /dev/null
+++ b/packages/lmdb/lmdb.dev/opam
@@ -0,0 +1,23 @@
+opam-version: "2.0"
+name: "lmdb"
+version: "0.1"
+authors: "Vincent Bernardoff <vb@luminar.eu.org>"
+maintainer: "Vincent Bernardoff <vb@luminar.eu.org>"
+license: "ISC"
+synopsis: "Simple OCaml binding to Lightning Memory-Mapped Database from Symas"
+homepage: "https://github.com/vbmithr/ocaml-lmdb"
+bug-reports: "https://github.com/vbmithr/ocaml-lmdb/issues"
+dev-repo: "git://github.com/vbmithr/ocaml-lmdb"
+build: [
+  [ "dune" "build" "-j" jobs "-p" name "@install" ]
+  [ "mv" "vendors/ocaml-lmdb/lmdb.install" "." ]
+]
+depends: [
+  "dune" {build & >= "1.0.1"}
+  "rresult" {>= "0.5.0"}
+  "cstruct" {with-test & >= "3.2.1"}
+  "alcotest" {with-test & >= "0.8.1"}
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/michelson-parser/michelson-parser.dev/opam b/packages/michelson-parser/michelson-parser.dev/opam
new file mode 100644
index 000000000..f04816130
--- /dev/null
+++ b/packages/michelson-parser/michelson-parser.dev/opam
@@ -0,0 +1,21 @@
+name: "michelson-parser"
+opam-version: "2.0"
+version: "dev"
+maintainer: "ligolang@gmail.com"
+authors: [ "Galfour" ]
+homepage: "https://gitlab.com/ligolang/tezos"
+bug-reports: "https://gitlab.com/ligolang/tezos/issues"
+dev-repo: "git+https://gitlab.com/ligolang/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune"
+  "tezos-memory-proto-alpha"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "tezos-utils/michelson-parser/michelson-parser.install" "." ]
+]
+url {
+  src: "https://gitlab.com/ligolang/ligo-utils/-/archive/master/ligo-utils.tar.gz"
+}
diff --git a/packages/ocplib-ezresto-directory/ocplib-ezresto-directory.dev/opam b/packages/ocplib-ezresto-directory/ocplib-ezresto-directory.dev/opam
new file mode 100644
index 000000000..2c7114845
--- /dev/null
+++ b/packages/ocplib-ezresto-directory/ocplib-ezresto-directory.dev/opam
@@ -0,0 +1,28 @@
+name: "ocplib-ezresto-directory"
+version: "dev"
+opam-version: "2.0"
+maintainer: "Grégoire Henry <gregoire.henry@tezos.com>"
+authors: "Grégoire Henry <gregoire.henry@tezos.com>"
+license: "LGPL-2.1-with-OCaml-exception"
+homepage: "https://github.com/OCamlPro/ocplib-resto"
+bug-reports: "https://github.com/OCamlPro/ocplib-resto/issues"
+dev-repo: "git+https://github.com/OCamlPro/ocplib-resto"
+synopsis: "A minimal OCaml library for type-safe HTTP/JSON RPCs"
+
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "vendors/ocplib-resto/lib_ezresto-directory/ocplib-ezresto-directory.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+
+depends: [
+  "ocamlfind" {build}
+  "dune" {build}
+  "ocplib-ezresto" {= "dev" }
+  "ocplib-resto-directory" {= "dev" }
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/ocplib-ezresto/ocplib-ezresto.dev/opam b/packages/ocplib-ezresto/ocplib-ezresto.dev/opam
new file mode 100644
index 000000000..110632ff2
--- /dev/null
+++ b/packages/ocplib-ezresto/ocplib-ezresto.dev/opam
@@ -0,0 +1,28 @@
+name: "ocplib-ezresto"
+version: "dev"
+opam-version: "2.0"
+maintainer: "Grégoire Henry <gregoire.henry@tezos.com>"
+authors: "Grégoire Henry <gregoire.henry@tezos.com>"
+license: "LGPL-2.1-with-OCaml-exception"
+homepage: "https://github.com/OCamlPro/ocplib-resto"
+bug-reports: "https://github.com/OCamlPro/ocplib-resto/issues"
+dev-repo: "git+https://github.com/OCamlPro/ocplib-resto"
+synopsis: "A minimal OCaml library for type-safe HTTP/JSON RPCs"
+
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "vendors/ocplib-resto/lib_ezresto/ocplib-ezresto.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+
+depends: [
+  "ocamlfind" {build}
+  "dune" {build}
+  "ocplib-resto" {= "dev" }
+  "ocplib-resto-json" {= "dev" }
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/ocplib-json-typed-browser/ocplib-json-typed-browser.dev/opam b/packages/ocplib-json-typed-browser/ocplib-json-typed-browser.dev/opam
new file mode 100644
index 000000000..1dbe76b15
--- /dev/null
+++ b/packages/ocplib-json-typed-browser/ocplib-json-typed-browser.dev/opam
@@ -0,0 +1,25 @@
+opam-version: "2.0"
+name: "ocplib-json-typed-browser"
+version: "0.6"
+maintainer: "Benjamin Canou <benjamin@ocamlpro.com>"
+authors: "Benjamin Canou <benjamin@ocamlpro.com>"
+homepage: "https://github.com/ocamlpro/ocplib-json-typed"
+synopsis: "Libraries for reliable manipulation JSON objects (browser support)"
+bug-reports: "https://github.com/ocamlpro/ocplib-json-typed/issues"
+license: "LGPLv3 w/ linking exception"
+dev-repo: "git+https://github.com/ocamlpro/ocplib-json-typed.git"
+
+build: [
+  [ "dune" "build" "-j" jobs "-p" name "@install" ]
+  [ "mv" "vendors/ocplib-json-typed/ocplib-json-typed-browser.install" "." ]
+]
+run-test: [ "dune" "runtest" "-p" name "-j" jobs ]
+depends: [
+  "ocaml" {>= "4.3.0"}
+  "dune" {build & >= "1.0.1"}
+  "ocplib-json-typed" {= "0.6" }
+  "js_of_ocaml" {>= "3.3.0"}
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/ocplib-json-typed-bson/ocplib-json-typed-bson.dev/opam b/packages/ocplib-json-typed-bson/ocplib-json-typed-bson.dev/opam
new file mode 100644
index 000000000..0bab5f551
--- /dev/null
+++ b/packages/ocplib-json-typed-bson/ocplib-json-typed-bson.dev/opam
@@ -0,0 +1,25 @@
+opam-version: "2.0"
+name: "ocplib-json-typed-bson"
+version: "0.6"
+maintainer: "Benjamin Canou <benjamin@ocamlpro.com>"
+authors: "Benjamin Canou <benjamin@ocamlpro.com>"
+homepage: "https://github.com/ocamlpro/ocplib-json-typed"
+synopsis: "Libraries for reliable manipulation JSON objects (BSON)"
+bug-reports: "https://github.com/ocamlpro/ocplib-json-typed/issues"
+license: "LGPLv3 w/ linking exception"
+dev-repo: "git+https://github.com/ocamlpro/ocplib-json-typed.git"
+
+build: [
+  [ "dune" "build" "-j" jobs "-p" name "@install" ]
+  [ "mv" "vendors/ocplib-json-typed/ocplib-json-typed-bson.install" "." ]
+]
+run-test: [ "dune" "runtest" "-p" name "-j" jobs ]
+depends: [
+  "ocaml" {>= "4.3.0"}
+  "dune" {build & >= "1.0.1"}
+  "ocplib-json-typed" {= "0.6" }
+  "ocplib-endian" {>= "1.0"}
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/ocplib-json-typed/ocplib-json-typed.dev/opam b/packages/ocplib-json-typed/ocplib-json-typed.dev/opam
new file mode 100644
index 000000000..a95d47b36
--- /dev/null
+++ b/packages/ocplib-json-typed/ocplib-json-typed.dev/opam
@@ -0,0 +1,24 @@
+opam-version: "2.0"
+name: "ocplib-json-typed"
+version: "0.6"
+maintainer: "Benjamin Canou <benjamin@ocamlpro.com>"
+authors: "Benjamin Canou <benjamin@ocamlpro.com>"
+homepage: "https://github.com/ocamlpro/ocplib-json-typed"
+synopsis: "Libraries for reliable manipulation JSON objects"
+bug-reports: "https://github.com/ocamlpro/ocplib-json-typed/issues"
+license: "LGPLv3 w/ linking exception"
+dev-repo: "git+https://github.com/ocamlpro/ocplib-json-typed.git"
+
+build: [
+  [ "dune" "build" "-j" jobs "-p" name "@install" ]
+  [ "mv" "vendors/ocplib-json-typed/ocplib-json-typed.install" "." ]
+]
+run-test: [ "dune" "runtest" "-p" name "-j" jobs ]
+depends: [
+  "ocaml" {>= "4.3.0"}
+  "dune" {build & >= "1.0.1"}
+  "uri" {>= "1.9.0" }
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/ocplib-resto-cohttp/ocplib-resto-cohttp.dev/opam b/packages/ocplib-resto-cohttp/ocplib-resto-cohttp.dev/opam
new file mode 100644
index 000000000..71d297d1c
--- /dev/null
+++ b/packages/ocplib-resto-cohttp/ocplib-resto-cohttp.dev/opam
@@ -0,0 +1,28 @@
+name: "ocplib-resto-cohttp"
+version: "dev"
+opam-version: "2.0"
+maintainer: "Grégoire Henry <gregoire.henry@tezos.com>"
+authors: "Grégoire Henry <gregoire.henry@tezos.com>"
+license: "LGPL-2.1-with-OCaml-exception"
+homepage: "https://github.com/OCamlPro/ocplib-resto"
+bug-reports: "https://github.com/OCamlPro/ocplib-resto/issues"
+dev-repo: "git+https://github.com/OCamlPro/ocplib-resto"
+synopsis: "A minimal OCaml library for type-safe HTTP/JSON RPCs"
+
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "vendors/ocplib-resto/lib_resto-cohttp/ocplib-resto-cohttp.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+
+depends: [
+  "ocamlfind" {build}
+  "dune" {build}
+  "ocplib-resto-directory" {= "dev" }
+  "cohttp-lwt-unix" { >= "1.0.0" }
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/ocplib-resto-directory/ocplib-resto-directory.dev/opam b/packages/ocplib-resto-directory/ocplib-resto-directory.dev/opam
new file mode 100644
index 000000000..5e5bded5a
--- /dev/null
+++ b/packages/ocplib-resto-directory/ocplib-resto-directory.dev/opam
@@ -0,0 +1,29 @@
+name: "ocplib-resto-directory"
+version: "dev"
+opam-version: "2.0"
+maintainer: "Grégoire Henry <gregoire.henry@tezos.com>"
+authors: "Grégoire Henry <gregoire.henry@tezos.com>"
+license: "LGPL-2.1-with-OCaml-exception"
+homepage: "https://github.com/OCamlPro/ocplib-resto"
+bug-reports: "https://github.com/OCamlPro/ocplib-resto/issues"
+dev-repo: "git+https://github.com/OCamlPro/ocplib-resto"
+synopsis: "A minimal OCaml library for type-safe HTTP/JSON RPCs"
+
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "vendors/ocplib-resto/lib_resto-directory/ocplib-resto-directory.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+
+depends: [
+  "ocamlfind" {build}
+  "dune" {build}
+  "ocplib-resto" {= "dev" }
+  "ocplib-resto-json" {= "dev" & with-test }
+  "lwt" { >= "3.0.0" }
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/ocplib-resto-json/ocplib-resto-json.dev/opam b/packages/ocplib-resto-json/ocplib-resto-json.dev/opam
new file mode 100644
index 000000000..fb5b100d7
--- /dev/null
+++ b/packages/ocplib-resto-json/ocplib-resto-json.dev/opam
@@ -0,0 +1,28 @@
+name: "ocplib-resto-json"
+version: "dev"
+opam-version: "2.0"
+maintainer: "Grégoire Henry <gregoire.henry@tezos.com>"
+authors: "Grégoire Henry <gregoire.henry@tezos.com>"
+license: "LGPL-2.1-with-OCaml-exception"
+homepage: "https://github.com/OCamlPro/ocplib-resto"
+bug-reports: "https://github.com/OCamlPro/ocplib-resto/issues"
+dev-repo: "git+https://github.com/OCamlPro/ocplib-resto"
+synopsis: "A minimal OCaml library for type-safe HTTP/JSON RPCs"
+
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "vendors/ocplib-resto/lib_resto-json/ocplib-resto-json.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+
+depends: [
+  "ocamlfind" {build}
+  "dune" {build}
+  "ocplib-resto" {= "dev" }
+  "ocplib-json-typed-bson" { >= "0.6" }
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/ocplib-resto/ocplib-resto.dev/opam b/packages/ocplib-resto/ocplib-resto.dev/opam
new file mode 100644
index 000000000..144f20c64
--- /dev/null
+++ b/packages/ocplib-resto/ocplib-resto.dev/opam
@@ -0,0 +1,27 @@
+name: "ocplib-resto"
+version: "dev"
+opam-version: "2.0"
+maintainer: "Grégoire Henry <gregoire.henry@tezos.com>"
+authors: "Grégoire Henry <gregoire.henry@tezos.com>"
+license: "LGPL-2.1-with-OCaml-exception"
+homepage: "https://github.com/OCamlPro/ocplib-resto"
+bug-reports: "https://github.com/OCamlPro/ocplib-resto/issues"
+dev-repo: "git+https://github.com/OCamlPro/ocplib-resto"
+synopsis: "A minimal OCaml library for type-safe HTTP/JSON RPCs"
+
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "vendors/ocplib-resto/lib_resto/ocplib-resto.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+
+depends: [
+  "ocamlfind" {build}
+  "dune" {build}
+  "uri"
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/pbkdf/pbkdf.dev/opam b/packages/pbkdf/pbkdf.dev/opam
new file mode 100644
index 000000000..dc601ba48
--- /dev/null
+++ b/packages/pbkdf/pbkdf.dev/opam
@@ -0,0 +1,27 @@
+opam-version: "2.0"
+name:         "pbkdf"
+version:      "0.3.0"
+homepage:     "https://github.com/abeaumont/ocaml-pbkdf"
+dev-repo:     "git+https://github.com/abeaumont/ocaml-pbkdf.git"
+bug-reports:  "https://github.com/abeaumont/ocaml-pbkdf/issues"
+authors:      ["Alfredo Beaumont <alfredo.beaumont@gmail.com>" "Sonia Meruelo <smeruelo@gmail.com>"]
+maintainer:   ["Alfredo Beaumont <alfredo.beaumont@gmail.com>"]
+license:      "BSD2"
+synopsis:     "Password based key derivation functions from PKCS#5, RFC 2898"
+
+build: [
+  [ "dune" "build" "-j" jobs "-p" name "@install" ]
+  [ "mv" "vendors/ocaml-pbkdf/pbkdf.install" "." ]
+]
+run-test: [ "dune" "runtest" "-p" name "-j" jobs ]
+depends: [
+  "dune" { build & >= "1.0.1" }
+  "hacl"
+  "bigstring" {>= "0.2"}
+  "ocplib-endian" {>= "1.0"}
+  "alcotest" {with-test & >= "0.8.1"}
+  "hex" {with-test & >= "1.2.0"}
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/proto-alpha-utils/proto-alpha-utils.dev/opam b/packages/proto-alpha-utils/proto-alpha-utils.dev/opam
new file mode 100644
index 000000000..f288b29a1
--- /dev/null
+++ b/packages/proto-alpha-utils/proto-alpha-utils.dev/opam
@@ -0,0 +1,56 @@
+opam-version: "2.0"
+name: "proto-alpha-utils"
+version: "dev"
+synopsis: "LIGO Proto Alpha-specific Utilities, to be used by other libraries"
+maintainer: "Galfour <ligolang@gmail.com>"
+authors: "Galfour <ligolang@gmail.com>"
+license: "MIT"
+homepage: "https://gitlab.com/ligolang/ligo-utils"
+bug-reports: "https://gitlab.com/ligolang/ligo-utils/issues"
+depends: [
+  "dune"
+  "base"
+  "base"
+  "bigstring"
+  "calendar"
+  "cohttp-lwt-unix"
+  "cstruct"
+  "ezjsonm"
+  "hex"
+  "hidapi"
+  "ipaddr"
+  "irmin"
+  "js_of_ocaml"
+  "lwt"
+  "lwt_log"
+  "mtime"
+  "ocplib-endian"
+  "ocp-ocamlres"
+  "re"
+  "rresult"
+  "stdio"
+  "uri"
+  "uutf"
+  "zarith"
+  "ocplib-json-typed"
+  "ocplib-json-typed-bson"
+  "tezos-crypto"
+  "tezos-stdlib-unix"
+  "tezos-data-encoding"
+  "tezos-protocol-environment"
+  "tezos-protocol-alpha"
+  "michelson-parser"
+  "simple-utils"
+  "tezos-utils"
+  # from ppx_let:
+  "ocaml" {>= "4.04.2" & < "4.08.0"}
+  "dune"   {build & >= "1.5.1"}
+  "ppxlib" {>= "0.5.0"}
+]
+build: [
+  ["dune" "build" "-p" name]
+  [ "mv" "proto-alpha-utils/proto-alpha-utils.install" "." ]
+]
+url {
+  src: "https://gitlab.com/ligolang/ligo-utils/-/archive/master/ligo-utils.tar.gz"
+}
diff --git a/packages/secp256k1/secp256k1.dev/opam b/packages/secp256k1/secp256k1.dev/opam
new file mode 100644
index 000000000..99a4a3def
--- /dev/null
+++ b/packages/secp256k1/secp256k1.dev/opam
@@ -0,0 +1,22 @@
+opam-version: "2.0"
+name: "secp256k1"
+version: "0.1"
+authors: "Vincent Bernardoff <vb@luminar.eu.org>"
+maintainer: "Vincent Bernardoff <vb@luminar.eu.org>"
+homepage: "https://github.com/vbmithr/ocaml-secp256k1-internal"
+bug-reports: "https://github.com/vbmithr/ocaml-secp256k1-internal/issues"
+dev-repo: "git://github.com/vbmithr/ocaml-secp256k1-internal"
+synopsis: "Bindings to secp256k1 internal functions"
+build: [
+  [ "dune" "build" "-j" jobs "-p" name "@install" ]
+  [ "mv" "vendors/ocaml-secp256k1/secp256k1.install" "." ]
+]
+depends: [
+  "conf-gmp" {build}
+  "dune" {build & >= "1.0.1"}
+  "cstruct" {>= "3.2.1"}
+  "bigstring" {>= "0.1.1"}
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/simple-utils/simple-utils.dev/opam b/packages/simple-utils/simple-utils.dev/opam
new file mode 100644
index 000000000..025107620
--- /dev/null
+++ b/packages/simple-utils/simple-utils.dev/opam
@@ -0,0 +1,54 @@
+opam-version: "2.0"
+name: "simple-utils"
+version: "dev"
+synopsis: "LIGO Utilities, to be used by other libraries"
+maintainer: "Galfour <ligolang@gmail.com>"
+authors: "Galfour <ligolang@gmail.com>"
+license: "MIT"
+homepage: "https://gitlab.com/ligolang/ligo-utils"
+bug-reports: "https://gitlab.com/ligolang/ligo-utils/issues"
+depends: [
+  "dune"
+  "base"
+  "base"
+  "bigstring"
+  "calendar"
+  "cohttp-lwt-unix"
+  "cstruct"
+  "ezjsonm"
+  "hex"
+  "hidapi"
+  "ipaddr"
+  "irmin"
+  "js_of_ocaml"
+  "lwt"
+  "lwt_log"
+  "mtime"
+  "ocplib-endian"
+  "ocp-ocamlres"
+  "re"
+  "rresult"
+  "stdio"
+  "uri"
+  "uutf"
+  "zarith"
+  "ocplib-json-typed"
+  "ocplib-json-typed-bson"
+  "tezos-crypto"
+  "tezos-stdlib-unix"
+  "tezos-data-encoding"
+  "tezos-protocol-environment"
+  "tezos-protocol-alpha"
+  "michelson-parser"
+  # from ppx_let:
+  "ocaml" {>= "4.04.2" & < "4.08.0"}
+  "dune"   {build & >= "1.5.1"}
+  "ppxlib" {>= "0.5.0"}
+]
+build: [
+  ["dune" "build" "-p" name]
+  [ "mv" "simple-utils/simple-utils.install" "." ]
+]
+url {
+  src: "https://gitlab.com/ligolang/ligo-utils/-/archive/master/ligo-utils.tar.gz"
+}
diff --git a/packages/tezos-accuser-alpha-commands/tezos-accuser-alpha-commands.dev/opam b/packages/tezos-accuser-alpha-commands/tezos-accuser-alpha-commands.dev/opam
new file mode 100644
index 000000000..dc7a1381b
--- /dev/null
+++ b/packages/tezos-accuser-alpha-commands/tezos-accuser-alpha-commands.dev/opam
@@ -0,0 +1,29 @@
+version: "dev"
+name: "tezos-accuser-alpha-commands"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-protocol-environment"
+  "tezos-protocol-alpha"
+  "tezos-shell-services"
+  "tezos-client-base"
+  "tezos-client-commands"
+  "tezos-client-alpha"
+  "tezos-baking-alpha"
+  "tezos-signer-backends" { with-test }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_alpha/lib_delegate/tezos-accuser-alpha-commands.install" "." ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-accuser-alpha/tezos-accuser-alpha.dev/opam b/packages/tezos-accuser-alpha/tezos-accuser-alpha.dev/opam
new file mode 100644
index 000000000..cf5ed96ff
--- /dev/null
+++ b/packages/tezos-accuser-alpha/tezos-accuser-alpha.dev/opam
@@ -0,0 +1,25 @@
+version: "dev"
+name: "tezos-accuser-alpha"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-client-alpha"
+  "tezos-client-commands"
+  "tezos-baking-alpha-commands"
+  "tezos-client-base-unix"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_alpha/bin_accuser/tezos-accuser-alpha.install" "." ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-baker-alpha-commands/tezos-baker-alpha-commands.dev/opam b/packages/tezos-baker-alpha-commands/tezos-baker-alpha-commands.dev/opam
new file mode 100644
index 000000000..94efe9ae3
--- /dev/null
+++ b/packages/tezos-baker-alpha-commands/tezos-baker-alpha-commands.dev/opam
@@ -0,0 +1,29 @@
+version: "dev"
+name: "tezos-baker-alpha-commands"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-protocol-environment"
+  "tezos-protocol-alpha"
+  "tezos-shell-services"
+  "tezos-client-base"
+  "tezos-client-commands"
+  "tezos-client-alpha"
+  "tezos-baking-alpha"
+  "tezos-signer-backends" { with-test }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_alpha/lib_delegate/tezos-baker-alpha-commands.install" "." ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-baker-alpha/tezos-baker-alpha.dev/opam b/packages/tezos-baker-alpha/tezos-baker-alpha.dev/opam
new file mode 100644
index 000000000..3253c9526
--- /dev/null
+++ b/packages/tezos-baker-alpha/tezos-baker-alpha.dev/opam
@@ -0,0 +1,25 @@
+version: "dev"
+name: "tezos-baker-alpha"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-client-alpha"
+  "tezos-client-commands"
+  "tezos-baking-alpha-commands"
+  "tezos-client-base-unix"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_alpha/bin_baker/tezos-baker-alpha.install" "." ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-baking-alpha-commands/tezos-baking-alpha-commands.dev/opam b/packages/tezos-baking-alpha-commands/tezos-baking-alpha-commands.dev/opam
new file mode 100644
index 000000000..cb5219bc0
--- /dev/null
+++ b/packages/tezos-baking-alpha-commands/tezos-baking-alpha-commands.dev/opam
@@ -0,0 +1,29 @@
+version: "dev"
+name: "tezos-baking-alpha-commands"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-protocol-environment"
+  "tezos-protocol-alpha"
+  "tezos-shell-services"
+  "tezos-client-base"
+  "tezos-client-commands"
+  "tezos-client-alpha"
+  "tezos-baking-alpha"
+  "tezos-signer-backends" { with-test }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_alpha/lib_delegate/tezos-baking-alpha-commands.install" "." ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-baking-alpha/tezos-baking-alpha.dev/opam b/packages/tezos-baking-alpha/tezos-baking-alpha.dev/opam
new file mode 100644
index 000000000..a9de1e5b7
--- /dev/null
+++ b/packages/tezos-baking-alpha/tezos-baking-alpha.dev/opam
@@ -0,0 +1,34 @@
+version: "dev"
+name: "tezos-baking-alpha"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-protocol-environment"
+  "tezos-protocol-alpha"
+  "tezos-shell-services"
+  "tezos-client-base"
+  "tezos-client-commands"
+  "tezos-client-alpha"
+  "tezos-node" { with-test }
+  "tezos-client-genesis" { with-test }
+  "tezos-client-base-unix" { with-test }
+  "alcotest-lwt" { with-test }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_alpha/lib_delegate/tezos-baking-alpha.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-base/tezos-base.dev/opam b/packages/tezos-base/tezos-base.dev/opam
new file mode 100644
index 000000000..ffc401d8e
--- /dev/null
+++ b/packages/tezos-base/tezos-base.dev/opam
@@ -0,0 +1,34 @@
+version: "dev"
+name: "tezos-base"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-stdlib"
+  "tezos-crypto"
+  "tezos-data-encoding"
+  "tezos-error-monad"
+  "tezos-micheline"
+  "tezos-rpc"
+  "calendar"
+  "ezjsonm" { >= "0.5.0" }
+  "ipaddr" { >= "3.0.0" }
+  "mtime" { >= "1.0.0" }
+  "re" { >= "1.7.2" }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_base/tezos-base.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-clic/tezos-clic.dev/opam b/packages/tezos-clic/tezos-clic.dev/opam
new file mode 100644
index 000000000..957c1f864
--- /dev/null
+++ b/packages/tezos-clic/tezos-clic.dev/opam
@@ -0,0 +1,25 @@
+version: "dev"
+name: "tezos-clic"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-stdlib"
+  "tezos-error-monad"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_clic/tezos-clic.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-client-alpha-commands/tezos-client-alpha-commands.dev/opam b/packages/tezos-client-alpha-commands/tezos-client-alpha-commands.dev/opam
new file mode 100644
index 000000000..f85a49147
--- /dev/null
+++ b/packages/tezos-client-alpha-commands/tezos-client-alpha-commands.dev/opam
@@ -0,0 +1,27 @@
+version: "dev"
+name: "tezos-client-alpha-commands"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-protocol-environment"
+  "tezos-protocol-alpha"
+  "tezos-shell-services"
+  "tezos-client-base"
+  "tezos-client-alpha"
+  "tezos-client-commands"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_alpha/lib_client_commands/tezos-client-alpha-commands.install" "." ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-client-alpha/tezos-client-alpha.dev/opam b/packages/tezos-client-alpha/tezos-client-alpha.dev/opam
new file mode 100644
index 000000000..b79f98bc1
--- /dev/null
+++ b/packages/tezos-client-alpha/tezos-client-alpha.dev/opam
@@ -0,0 +1,26 @@
+version: "dev"
+name: "tezos-client-alpha"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-protocol-environment"
+  "tezos-protocol-alpha"
+  "tezos-shell-services"
+  "tezos-client-base"
+  "tezos-signer-backends"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_alpha/lib_client/tezos-client-alpha.install" "." ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-client-base-unix/tezos-client-base-unix.dev/opam b/packages/tezos-client-base-unix/tezos-client-base-unix.dev/opam
new file mode 100644
index 000000000..c395011c8
--- /dev/null
+++ b/packages/tezos-client-base-unix/tezos-client-base-unix.dev/opam
@@ -0,0 +1,29 @@
+version: "dev"
+name: "tezos-client-base-unix"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-client-base"
+  "tezos-stdlib-unix"
+  "tezos-rpc-http"
+  "tezos-signer-backends"
+  "tezos-client-commands"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_client_base_unix/tezos-client-base-unix.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-client-base/tezos-client-base.dev/opam b/packages/tezos-client-base/tezos-client-base.dev/opam
new file mode 100644
index 000000000..6f2a814ae
--- /dev/null
+++ b/packages/tezos-client-base/tezos-client-base.dev/opam
@@ -0,0 +1,31 @@
+version: "dev"
+name: "tezos-client-base"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-stdlib-unix"
+  "tezos-shell-services"
+  "tezos-storage"
+  "tezos-rpc-http"
+  "cmdliner"
+  "pbkdf"
+  "bip39"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_client_base/tezos-client-base.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-client-commands/tezos-client-commands.dev/opam b/packages/tezos-client-commands/tezos-client-commands.dev/opam
new file mode 100644
index 000000000..a7ca8e8b0
--- /dev/null
+++ b/packages/tezos-client-commands/tezos-client-commands.dev/opam
@@ -0,0 +1,28 @@
+version: "dev"
+name: "tezos-client-commands"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-client-base"
+  "tezos-rpc"
+  "tezos-shell-services"
+  "tezos-signer-backends"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_client_commands/tezos-client-commands.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-client-demo/tezos-client-demo.dev/opam b/packages/tezos-client-demo/tezos-client-demo.dev/opam
new file mode 100644
index 000000000..a4f9e3398
--- /dev/null
+++ b/packages/tezos-client-demo/tezos-client-demo.dev/opam
@@ -0,0 +1,29 @@
+name: "tezos-client-demo"
+opam-version: "1.2"
+version: "dev"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-shell-services"
+  "tezos-client-base"
+  "tezos-client-commands"
+  "tezos-protocol-environment"
+  "tezos-protocol-demo"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_demo/lib_client/tezos-client-demo.install" "." ]
+]
+build-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-client-genesis/tezos-client-genesis.dev/opam b/packages/tezos-client-genesis/tezos-client-genesis.dev/opam
new file mode 100644
index 000000000..097f8c8a3
--- /dev/null
+++ b/packages/tezos-client-genesis/tezos-client-genesis.dev/opam
@@ -0,0 +1,29 @@
+version: "dev"
+name: "tezos-client-genesis"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-shell-services"
+  "tezos-client-base"
+  "tezos-client-commands"
+  "tezos-protocol-environment"
+  "tezos-protocol-genesis"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_genesis/lib_client/tezos-client-genesis.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-client/tezos-client.dev/opam b/packages/tezos-client/tezos-client.dev/opam
new file mode 100644
index 000000000..5f6de6ee7
--- /dev/null
+++ b/packages/tezos-client/tezos-client.dev/opam
@@ -0,0 +1,35 @@
+version: "dev"
+name: "tezos-client"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-client-base"
+  "tezos-client-genesis"
+  "tezos-client-demo"
+  "tezos-client-alpha"
+  "tezos-client-alpha-commands"
+  "tezos-baking-alpha"
+  "tezos-baking-alpha-commands"
+  "tezos-client-base-unix"
+  "tezos-signer-backends"
+  "tezos-node" { with-test }
+  "tezos-protocol-compiler" { with-test }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/bin_client/tezos-client.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-crypto/tezos-crypto.dev/opam b/packages/tezos-crypto/tezos-crypto.dev/opam
new file mode 100644
index 000000000..7df5fd91d
--- /dev/null
+++ b/packages/tezos-crypto/tezos-crypto.dev/opam
@@ -0,0 +1,35 @@
+version: "dev"
+name: "tezos-crypto"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-stdlib"
+  "tezos-data-encoding"
+  "tezos-error-monad"
+  "tezos-rpc"
+  "tezos-clic"
+  "lwt"
+  "blake2"
+  "hacl"
+  "zarith"
+  "secp256k1"
+  "uecc"
+  "alcotest" { with-test & >= "0.8.3" }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_crypto/tezos-crypto.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-data-encoding/tezos-data-encoding.dev/opam b/packages/tezos-data-encoding/tezos-data-encoding.dev/opam
new file mode 100644
index 000000000..dbdebdc67
--- /dev/null
+++ b/packages/tezos-data-encoding/tezos-data-encoding.dev/opam
@@ -0,0 +1,30 @@
+version: "dev"
+name: "tezos-data-encoding"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-stdlib"
+  "ezjsonm"
+  "ocplib-json-typed"
+  "ocplib-json-typed-bson"
+  "ocplib-endian"
+  "alcotest" { with-test }
+  "crowbar" { with-test }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_data_encoding/tezos-data-encoding.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-embedded-protocol-alpha/tezos-embedded-protocol-alpha.dev/opam b/packages/tezos-embedded-protocol-alpha/tezos-embedded-protocol-alpha.dev/opam
new file mode 100644
index 000000000..c99b103d8
--- /dev/null
+++ b/packages/tezos-embedded-protocol-alpha/tezos-embedded-protocol-alpha.dev/opam
@@ -0,0 +1,29 @@
+version: "dev"
+name: "tezos-embedded-protocol-alpha"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-protocol-compiler"
+  "tezos-protocol-updater"
+]
+build: [
+  [ "%{tezos-protocol-compiler:lib}%/replace"
+      "%{tezos-protocol-compiler:lib}%/dune_protocol.template"
+      "dune" "alpha" ]
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_alpha/lib_protocol/tezos-embedded-protocol-alpha.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-embedded-protocol-demo/tezos-embedded-protocol-demo.dev/opam b/packages/tezos-embedded-protocol-demo/tezos-embedded-protocol-demo.dev/opam
new file mode 100644
index 000000000..0bd83afe9
--- /dev/null
+++ b/packages/tezos-embedded-protocol-demo/tezos-embedded-protocol-demo.dev/opam
@@ -0,0 +1,28 @@
+version: "dev"
+name: "tezos-embedded-protocol-demo"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-protocol-compiler"
+  "tezos-protocol-updater"
+]
+build: [
+  [ "%{tezos-protocol-compiler:lib}%/replace"
+      "%{tezos-protocol-compiler:lib}%/dune_protocol.template"
+      "dune" "demo" ]
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_demo/lib_protocol/tezos-embedded-protocol-demo.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-embedded-protocol-genesis/tezos-embedded-protocol-genesis.dev/opam b/packages/tezos-embedded-protocol-genesis/tezos-embedded-protocol-genesis.dev/opam
new file mode 100644
index 000000000..6d112ec52
--- /dev/null
+++ b/packages/tezos-embedded-protocol-genesis/tezos-embedded-protocol-genesis.dev/opam
@@ -0,0 +1,28 @@
+version: "dev"
+name: "tezos-embedded-protocol-genesis"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-protocol-compiler"
+  "tezos-protocol-updater"
+]
+build: [
+  [ "%{tezos-protocol-compiler:lib}%/replace"
+      "%{tezos-protocol-compiler:lib}%/dune_protocol.template"
+      "dune" "genesis" ]
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_genesis/lib_protocol/tezos-embedded-protocol-genesis.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-endorser-alpha-commands/tezos-endorser-alpha-commands.dev/opam b/packages/tezos-endorser-alpha-commands/tezos-endorser-alpha-commands.dev/opam
new file mode 100644
index 000000000..39843046a
--- /dev/null
+++ b/packages/tezos-endorser-alpha-commands/tezos-endorser-alpha-commands.dev/opam
@@ -0,0 +1,29 @@
+version: "dev"
+name: "tezos-endorser-alpha-commands"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-protocol-environment"
+  "tezos-protocol-alpha"
+  "tezos-shell-services"
+  "tezos-client-base"
+  "tezos-client-commands"
+  "tezos-client-alpha"
+  "tezos-baking-alpha"
+  "tezos-signer-backends" { with-test }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_alpha/lib_delegate/tezos-endorser-alpha-commands.install" "." ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-endorser-alpha/tezos-endorser-alpha.dev/opam b/packages/tezos-endorser-alpha/tezos-endorser-alpha.dev/opam
new file mode 100644
index 000000000..d417649d4
--- /dev/null
+++ b/packages/tezos-endorser-alpha/tezos-endorser-alpha.dev/opam
@@ -0,0 +1,25 @@
+version: "dev"
+name: "tezos-endorser-alpha"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-client-alpha"
+  "tezos-client-commands"
+  "tezos-baking-alpha-commands"
+  "tezos-client-base-unix"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_alpha/bin_endorser/tezos-endorser-alpha.install" "." ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-error-monad/tezos-error-monad.dev/opam b/packages/tezos-error-monad/tezos-error-monad.dev/opam
new file mode 100644
index 000000000..c67d48705
--- /dev/null
+++ b/packages/tezos-error-monad/tezos-error-monad.dev/opam
@@ -0,0 +1,26 @@
+version: "dev"
+name: "tezos-error-monad"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-stdlib"
+  "tezos-data-encoding"
+  "lwt"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_error_monad/tezos-error-monad.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-memory-proto-alpha/tezos-memory-proto-alpha.dev/opam b/packages/tezos-memory-proto-alpha/tezos-memory-proto-alpha.dev/opam
new file mode 100644
index 000000000..c65dfc673
--- /dev/null
+++ b/packages/tezos-memory-proto-alpha/tezos-memory-proto-alpha.dev/opam
@@ -0,0 +1,22 @@
+opam-version: "2.0"
+name: "memory-proto-alpha"
+version: "dev"
+synopsis: "Tezos Protocol Alpha in memory"
+maintainer: "Galfour <ligolang@gmail.com>"
+authors: "Galfour <ligolang@gmail.com>"
+license: "MIT"
+homepage: "https://gitlab.com/ligolang/tezos"
+bug-reports: "https://gitlab.com/ligolang/tezos/issues"
+depends: [
+  "dune"
+  "tezos-protocol-environment"
+  "tezos-protocol-alpha"
+]
+build: [
+  ["dune" "build" "-p" name]
+  [ "mv" "src/lib_memory_protocol_alpha/tezos-memory-proto-alpha.install" "." ]
+]
+dev-repo: "git+https://gitlab.com/ligolang/tezos"
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-micheline/tezos-micheline.dev/opam b/packages/tezos-micheline/tezos-micheline.dev/opam
new file mode 100644
index 000000000..1363b30d1
--- /dev/null
+++ b/packages/tezos-micheline/tezos-micheline.dev/opam
@@ -0,0 +1,27 @@
+version: "dev"
+name: "tezos-micheline"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-data-encoding"
+  "tezos-error-monad"
+  "uutf"
+  "alcotest-lwt" { with-test }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_micheline/tezos-micheline.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-node/tezos-node.dev/opam b/packages/tezos-node/tezos-node.dev/opam
new file mode 100644
index 000000000..b7e3c7a97
--- /dev/null
+++ b/packages/tezos-node/tezos-node.dev/opam
@@ -0,0 +1,35 @@
+version: "dev"
+name: "tezos-node"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-rpc-http"
+  "tezos-p2p"
+  "tezos-shell"
+  "tezos-protocol-updater"
+  "tezos-embedded-protocol-genesis"
+  "tezos-embedded-protocol-demo"
+  "tezos-embedded-protocol-alpha"
+  "cmdliner"
+  "tls"
+  "cstruct" { < "3.4.0" } ## Because "tls" depends on a version of "nocrypto"
+                          ## that is not compatible with recent "cstruct"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/bin_node/tezos-node.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-p2p/tezos-p2p.dev/opam b/packages/tezos-p2p/tezos-p2p.dev/opam
new file mode 100644
index 000000000..2f4e43977
--- /dev/null
+++ b/packages/tezos-p2p/tezos-p2p.dev/opam
@@ -0,0 +1,27 @@
+version: "dev"
+name: "tezos-p2p"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-stdlib-unix"
+  "tezos-shell-services"
+  "alcotest-lwt" { with-test }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_p2p/tezos-p2p.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-protocol-alpha/tezos-protocol-alpha.dev/opam b/packages/tezos-protocol-alpha/tezos-protocol-alpha.dev/opam
new file mode 100644
index 000000000..9893dcf7f
--- /dev/null
+++ b/packages/tezos-protocol-alpha/tezos-protocol-alpha.dev/opam
@@ -0,0 +1,33 @@
+version: "dev"
+name: "tezos-protocol-alpha"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-protocol-compiler"
+  "alcotest-lwt" { with-test }
+  "tezos-stdlib-unix" { with-test }
+  "tezos-protocol-environment" { with-test }
+  "tezos-shell-services" { with-test }
+  "bip39" { with-test }
+]
+build: [
+#  [ "%{tezos-protocol-compiler:lib}%/replace"
+#      "%{tezos-protocol-compiler:lib}%/dune_protocol.template"
+#      "src/proto_alpha/lib_protocol/dune" "alpha" ]
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_alpha/lib_protocol/tezos-protocol-alpha.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-protocol-compiler/tezos-protocol-compiler.dev/opam b/packages/tezos-protocol-compiler/tezos-protocol-compiler.dev/opam
new file mode 100644
index 000000000..5348d1193
--- /dev/null
+++ b/packages/tezos-protocol-compiler/tezos-protocol-compiler.dev/opam
@@ -0,0 +1,31 @@
+version: "dev"
+name: "tezos-protocol-compiler"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  ## ocaml should be in sync with `script/version.sh`
+  "ocaml" { = "4.06.1" }
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "base-unix"
+  "tezos-base"
+  "tezos-protocol-environment-sigs"
+  "tezos-stdlib-unix"
+  "ocplib-endian"
+  "ocp-ocamlres" { >= "0.4" }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_protocol_compiler/tezos-protocol-compiler.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-protocol-demo/tezos-protocol-demo.dev/opam b/packages/tezos-protocol-demo/tezos-protocol-demo.dev/opam
new file mode 100644
index 000000000..22eb7d57c
--- /dev/null
+++ b/packages/tezos-protocol-demo/tezos-protocol-demo.dev/opam
@@ -0,0 +1,27 @@
+version: "dev"
+name: "tezos-protocol-demo"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-protocol-compiler"
+]
+build: [
+  [ "%{tezos-protocol-compiler:lib}%/replace"
+      "%{tezos-protocol-compiler:lib}%/dune_protocol.template"
+      "src/proto_demo/lib_protocol/dune" "demo" ]
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_demo/lib_protocol/tezos-protocol-demo.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-protocol-environment-shell/tezos-protocol-environment-shell.dev/opam b/packages/tezos-protocol-environment-shell/tezos-protocol-environment-shell.dev/opam
new file mode 100644
index 000000000..3a867562d
--- /dev/null
+++ b/packages/tezos-protocol-environment-shell/tezos-protocol-environment-shell.dev/opam
@@ -0,0 +1,26 @@
+version: "dev"
+name: "tezos-protocol-environment-shell"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-protocol-environment"
+  "tezos-storage"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_protocol_environment/tezos-protocol-environment-shell.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-protocol-environment-sigs/tezos-protocol-environment-sigs.dev/opam b/packages/tezos-protocol-environment-sigs/tezos-protocol-environment-sigs.dev/opam
new file mode 100644
index 000000000..bbf197fc5
--- /dev/null
+++ b/packages/tezos-protocol-environment-sigs/tezos-protocol-environment-sigs.dev/opam
@@ -0,0 +1,24 @@
+version: "dev"
+name: "tezos-protocol-environment-sigs"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-stdlib" { with-test }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_protocol_environment/tezos-protocol-environment-sigs.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-protocol-environment/tezos-protocol-environment.dev/opam b/packages/tezos-protocol-environment/tezos-protocol-environment.dev/opam
new file mode 100644
index 000000000..5604f89b1
--- /dev/null
+++ b/packages/tezos-protocol-environment/tezos-protocol-environment.dev/opam
@@ -0,0 +1,26 @@
+version: "dev"
+name: "tezos-protocol-environment"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-protocol-environment-sigs"
+  "alcotest-lwt" { with-test }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_protocol_environment/tezos-protocol-environment.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-protocol-genesis/tezos-protocol-genesis.dev/opam b/packages/tezos-protocol-genesis/tezos-protocol-genesis.dev/opam
new file mode 100644
index 000000000..6072336e6
--- /dev/null
+++ b/packages/tezos-protocol-genesis/tezos-protocol-genesis.dev/opam
@@ -0,0 +1,27 @@
+version: "dev"
+name: "tezos-protocol-genesis"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-protocol-compiler"
+]
+build: [
+  [ "%{tezos-protocol-compiler:lib}%/replace"
+      "%{tezos-protocol-compiler:lib}%/dune_protocol.template"
+      "dune" "genesis" ]
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/proto_genesis/lib_protocol/tezos-protocol-genesis.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-protocol-updater/tezos-protocol-updater.dev/opam b/packages/tezos-protocol-updater/tezos-protocol-updater.dev/opam
new file mode 100644
index 000000000..5be3afe4c
--- /dev/null
+++ b/packages/tezos-protocol-updater/tezos-protocol-updater.dev/opam
@@ -0,0 +1,30 @@
+version: "dev"
+name: "tezos-protocol-updater"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-micheline"
+  "tezos-shell-services"
+  "tezos-protocol-compiler"
+  "tezos-protocol-environment-shell"
+  "tezos-stdlib-unix"
+  "tezos-storage"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_protocol_updater/tezos-protocol-updater.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-rpc-http/tezos-rpc-http.dev/opam b/packages/tezos-rpc-http/tezos-rpc-http.dev/opam
new file mode 100644
index 000000000..e6027b5ea
--- /dev/null
+++ b/packages/tezos-rpc-http/tezos-rpc-http.dev/opam
@@ -0,0 +1,26 @@
+version: "dev"
+name: "tezos-rpc-http"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "ocplib-resto-directory"
+  "ocplib-resto-cohttp"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_rpc_http/tezos-rpc-http.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-rpc/tezos-rpc.dev/opam b/packages/tezos-rpc/tezos-rpc.dev/opam
new file mode 100644
index 000000000..f20af6942
--- /dev/null
+++ b/packages/tezos-rpc/tezos-rpc.dev/opam
@@ -0,0 +1,27 @@
+version: "dev"
+name: "tezos-rpc"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-error-monad"
+  "tezos-data-encoding"
+  "ocplib-resto"
+  "ocplib-resto-directory"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_rpc/tezos-rpc.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-shell-services/tezos-shell-services.dev/opam b/packages/tezos-shell-services/tezos-shell-services.dev/opam
new file mode 100644
index 000000000..29afeead0
--- /dev/null
+++ b/packages/tezos-shell-services/tezos-shell-services.dev/opam
@@ -0,0 +1,24 @@
+version: "dev"
+name: "tezos-shell-services"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_shell_services/tezos-shell-services.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-shell/tezos-shell.dev/opam b/packages/tezos-shell/tezos-shell.dev/opam
new file mode 100644
index 000000000..1e2d44759
--- /dev/null
+++ b/packages/tezos-shell/tezos-shell.dev/opam
@@ -0,0 +1,31 @@
+version: "dev"
+name: "tezos-shell"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-rpc-http"
+  "tezos-p2p"
+  "tezos-shell-services"
+  "tezos-protocol-updater"
+  "tezos-validation"
+  "alcotest-lwt" { with-test }
+  "tezos-embedded-protocol-demo" { with-test }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_shell/tezos-shell.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-signer-backends/tezos-signer-backends.dev/opam b/packages/tezos-signer-backends/tezos-signer-backends.dev/opam
new file mode 100644
index 000000000..3b8930230
--- /dev/null
+++ b/packages/tezos-signer-backends/tezos-signer-backends.dev/opam
@@ -0,0 +1,34 @@
+version: "dev"
+name: "tezos-signer-backends"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-stdlib-unix"
+  "tezos-client-base"
+  "tezos-rpc-http"
+  "tezos-signer-services"
+  "tezos-shell-services"
+  "pbkdf"
+  "bip39"
+  "ledgerwallet-tezos"
+  "alcotest" {with-test & >= "0.8.1"}
+  "alcotest-lwt" {with-test & >= "0.8.0"}
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_signer_backends/tezos-signer-backends.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-signer-services/tezos-signer-services.dev/opam b/packages/tezos-signer-services/tezos-signer-services.dev/opam
new file mode 100644
index 000000000..7d7663793
--- /dev/null
+++ b/packages/tezos-signer-services/tezos-signer-services.dev/opam
@@ -0,0 +1,26 @@
+version: "dev"
+name: "tezos-signer-services"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-client-base"
+  "tezos-rpc"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_signer_services/tezos-signer-services.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-signer/tezos-signer.dev/opam b/packages/tezos-signer/tezos-signer.dev/opam
new file mode 100644
index 000000000..eae3b9427
--- /dev/null
+++ b/packages/tezos-signer/tezos-signer.dev/opam
@@ -0,0 +1,31 @@
+version: "dev"
+name: "tezos-signer"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-client-base"
+  "tezos-client-base-unix"
+  "tezos-client-commands"
+  "tezos-signer-services"
+  "tezos-rpc-http"
+  "tezos-stdlib-unix"
+  "tezos-signer-backends"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/bin_signer/tezos-signer.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-stdlib-unix/tezos-stdlib-unix.dev/opam b/packages/tezos-stdlib-unix/tezos-stdlib-unix.dev/opam
new file mode 100644
index 000000000..05d60396e
--- /dev/null
+++ b/packages/tezos-stdlib-unix/tezos-stdlib-unix.dev/opam
@@ -0,0 +1,27 @@
+version: "dev"
+name: "tezos-stdlib-unix"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "lwt" { >= "3.0.0" }
+  "conf-libev"
+  "ipaddr" { >= "3.0.0" }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_stdlib_unix/tezos-stdlib-unix.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-stdlib/tezos-stdlib.dev/opam b/packages/tezos-stdlib/tezos-stdlib.dev/opam
new file mode 100644
index 000000000..d780319a2
--- /dev/null
+++ b/packages/tezos-stdlib/tezos-stdlib.dev/opam
@@ -0,0 +1,31 @@
+version: "dev"
+name: "tezos-stdlib"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" & < "1.7" } ## Incompatible with lwt<4
+  "bigstring"
+  "hex"
+  "ocplib-endian"
+  "re"
+  "lwt" { < "4" }
+  "zarith"
+  "alcotest" { with-test }
+  "ocp-indent" { with-test & = "1.6.1" }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_stdlib/tezos-stdlib.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-storage/tezos-storage.dev/opam b/packages/tezos-storage/tezos-storage.dev/opam
new file mode 100644
index 000000000..414cead2e
--- /dev/null
+++ b/packages/tezos-storage/tezos-storage.dev/opam
@@ -0,0 +1,28 @@
+version: "dev"
+name: "tezos-storage"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "lmdb"
+  "irmin-lmdb"
+  "tezos-stdlib-unix" { with-test }
+  "alcotest-lwt" { with-test }
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_storage/tezos-storage.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/tezos-utils/tezos-utils.dev/opam b/packages/tezos-utils/tezos-utils.dev/opam
new file mode 100644
index 000000000..5815ae427
--- /dev/null
+++ b/packages/tezos-utils/tezos-utils.dev/opam
@@ -0,0 +1,55 @@
+opam-version: "2.0"
+name: "tezos-utils"
+version: "dev"
+synopsis: "LIGO Tezos specific Utilities, to be used by other libraries"
+maintainer: "Galfour <ligolang@gmail.com>"
+authors: "Galfour <ligolang@gmail.com>"
+license: "MIT"
+homepage: "https://gitlab.com/ligolang/ligo-utils"
+bug-reports: "https://gitlab.com/ligolang/ligo-utils/issues"
+depends: [
+  "dune"
+  "base"
+  "base"
+  "bigstring"
+  "calendar"
+  "cohttp-lwt-unix"
+  "cstruct"
+  "ezjsonm"
+  "hex"
+  "hidapi"
+  "ipaddr"
+  "irmin"
+  "js_of_ocaml"
+  "lwt"
+  "lwt_log"
+  "mtime"
+  "ocplib-endian"
+  "ocp-ocamlres"
+  "re"
+  "rresult"
+  "stdio"
+  "uri"
+  "uutf"
+  "zarith"
+  "ocplib-json-typed"
+  "ocplib-json-typed-bson"
+  "tezos-crypto"
+  "tezos-stdlib-unix"
+  "tezos-data-encoding"
+  "tezos-protocol-environment"
+  "tezos-protocol-alpha"
+  "michelson-parser"
+  "simple-utils"
+  # from ppx_let:
+  "ocaml" {>= "4.04.2" & < "4.08.0"}
+  "dune"   {build & >= "1.5.1"}
+  "ppxlib" {>= "0.5.0"}
+]
+build: [
+  ["dune" "build" "-p" name]
+  [ "mv" "tezos-utils/tezos-utils.install" "." ]
+]
+url {
+  src: "https://gitlab.com/ligolang/ligo-utils/-/archive/master/ligo-utils.tar.gz"
+}
diff --git a/packages/tezos-validation/tezos-validation.dev/opam b/packages/tezos-validation/tezos-validation.dev/opam
new file mode 100644
index 000000000..53b71ed0a
--- /dev/null
+++ b/packages/tezos-validation/tezos-validation.dev/opam
@@ -0,0 +1,27 @@
+version: "dev"
+name: "tezos-validation"
+opam-version: "2.0"
+maintainer: "contact@tezos.com"
+authors: [ "Tezos devteam" ]
+homepage: "https://www.tezos.com/"
+bug-reports: "https://gitlab.com/tezos/tezos/issues"
+dev-repo: "git+https://gitlab.com/tezos/tezos.git"
+license: "MIT"
+depends: [
+  "ocamlfind" { build }
+  "dune" { build & >= "1.0.1" }
+  "tezos-base"
+  "tezos-storage"
+  "tezos-shell-services"
+  "tezos-protocol-updater"
+]
+build: [
+  [ "dune" "build" "-p" name "-j" jobs ]
+  [ "mv" "src/lib_validation/tezos-validation.install" "." ]
+]
+run-test: [
+  [ "dune" "runtest" "-p" name "-j" jobs ]
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/packages/uecc/uecc.dev/opam b/packages/uecc/uecc.dev/opam
new file mode 100644
index 000000000..b03066c28
--- /dev/null
+++ b/packages/uecc/uecc.dev/opam
@@ -0,0 +1,25 @@
+opam-version: "2.0"
+name: "uecc"
+version: "dev"
+authors: "Vincent Bernardoff <vb@luminar.eu.org>"
+maintainer: "Vincent Bernardoff <vb@luminar.eu.org>"
+license: "ISC"
+homepage: "https://github.com/vbmithr/ocaml-uecc"
+synopsis: "Bindings for ECDH and ECDSA for 8-bit, 32-bit, and 64-bit processors"
+bug-reports: "https://github.com/vbmithr/ocaml-uecc/issues"
+dev-repo: "git://github.com/vbmithr/ocaml-uecc"
+build: [
+  [ "dune" "build" "-j" jobs "-p" name "@install" ]
+  [ "mv" "vendors/ocaml-uecc/uecc.install" "." ]
+]
+run-test: [ "dune" "runtest" "-p" name "-j" jobs ]
+depends: [
+  "dune" {build & >= "1.0.1"}
+  "bigstring" {>= "0.1.1"}
+  "alcotest" {with-test & >= "0.8.1"}
+  "cstruct" {with-test & >= "3.2.1"}
+  "hex" {with-test}
+]
+url {
+  src: "https://gitlab.com/ligolang/tezos-modded/-/archive/master/tezos-modded.tar.gz"
+}
diff --git a/repo b/repo
new file mode 100644
index 000000000..d4cfe9fd1
--- /dev/null
+++ b/repo
@@ -0,0 +1,3 @@
+opam-version: "2.0"
+archive-mirrors: "cache"
+stamp: "a989886f"
diff --git a/urls.txt b/urls.txt
new file mode 100644
index 000000000..e538c3e7e
--- /dev/null
+++ b/urls.txt
@@ -0,0 +1 @@
+repo	604d7d8c5eb209596f929225538c2c3c	420
diff --git a/vendors/opam-repository-tools/rewrite-local-opam-repository.sh b/vendors/opam-repository-tools/rewrite-local-opam-repository.sh
new file mode 100755
index 000000000..10ab030d1
--- /dev/null
+++ b/vendors/opam-repository-tools/rewrite-local-opam-repository.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+set -euET -o pipefail
+main(){
+  root_dir="$(pwd | sed -e 's/\\/\\\\/' | sed -e 's/&/\\\&/' | sed -e 's/~/\\~/')"
+  rm -fr vendors/ligo-opam-repository-local
+  mkdir vendors/ligo-opam-repository-local
+  cp -a index.tar.gz packages repo urls.txt vendors/ligo-opam-repository-local
+  cd vendors/ligo-opam-repository-local
+  git grep -z -l src: | grep -z 'opam$' | xargs -0 \
+    sed -i -e 's~src:  *"https://gitlab.com/ligolang/ligo/-/archive/master/ligo.tar.gz"~src: "file://'"$root_dir"'"~'
+  # TODO: run the update.sh script adequately to regenerate the index.tar.gz etc. in the local repo
+}
+if main; then exit 0; else exit $?; fi
diff --git a/vendors/opam-repository-tools/update.sh b/vendors/opam-repository-tools/update.sh
new file mode 100755
index 000000000..8c6b6d741
--- /dev/null
+++ b/vendors/opam-repository-tools/update.sh
@@ -0,0 +1,11 @@
+MESSAGE=$1
+if [ -z "$MESSAGE" ] ; then
+    echo "needs a commit message"
+    exit 1
+fi
+opam admin index
+opam admin cache
+git add .
+git commit -m "$MESSAGE"
+git push
+opam update new-galfour-tezos