diff --git a/Cargo.toml b/Cargo.toml
index f64e16d76..e121143ee 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -80,3 +80,7 @@ hax-lib-macros = { path = "hax-lib-macros", version = "=0.1.0-alpha.1" }
 hax-lib = { path = "hax-lib", version = "=0.1.0-alpha.1" }
 hax-engine-names = { path = "engine/names", version = "=0.1.0-alpha.1" }
 hax-types = { path = "hax-types", version = "=0.1.0-alpha.1" }
+
+[workspace.metadata.release]
+owners = ["github:hacspec:crates"]
+
diff --git a/PUBLISHING.md b/PUBLISHING.md
index ae1491466..cfb04a098 100644
--- a/PUBLISHING.md
+++ b/PUBLISHING.md
@@ -1,4 +1,11 @@
-# Crates publishing
+# Publishing
+
+## OCaml
+
+There is only the package `hax-engine`, that includes a binary and a
+number of libraries.
+
+## Rust
 
 This repository is divided into several crates, some to be published,
 some not. All crates should start with the `hax-` prefix, but
@@ -9,7 +16,7 @@ and `examples`):
 
 - `hax-test-harness` **(doesn't need to be published)**
 
-## cargo-hax
+### cargo-hax
 
 1. `hax-frontend-exporter-options` (`frontend/exporter/options `)
 2. `hax-adt-into` (`frontend/exporter/adt-into`)
@@ -20,23 +27,31 @@ and `examples`):
    - `hax-export-json-schemas`
    - `hax-pretty-print-diagnostics`
 
-- `hax-phase-debug-webapp`
 - `hax-driver`
 
+### hax-lib
 
-## hax-lib
+We publish the following crates that are helper libraries to be used
+for hax code:
 
 1. `hax-lib-macros-types`
 2. `hax-lib-macros`
 3. `hax-lib`
 
----
-
-- `hax-lint`
-
-## Supporting crates for the engine
+### Supporting crates for the engine
 The crate listed below are used only by the OCaml build of the
 engine. Those should not be published on `crate.io`.
 
 1. `cargo-hax-engine-names`
 2. `cargo-hax-engine-names-extract`
+
+## Procedure
+ 1. Bump the version number with `cargo release LEVEL --no-publish --execute` (`cargo release --help` for more details on `LEVEL`). This will bump the version of every Rust crate, but also the version in `engine/dune-project`. This will also regenerate `engine/hax-engine.opam`. Note this will *not* publish the crate.
+ 2. PR the change
+ 3. when the PR is merged in main, checkout `main` and run `cargo release --execute`
+
+Note: for now, we are not publishing to Opam. Instead, let's just advertise the following for installation:
+```bash
+opam pin hax-engine https://github.com/hacspec/hax.git#the-release-tag
+opam install hax-engine
+```
diff --git a/cli/subcommands/Cargo.toml b/cli/subcommands/Cargo.toml
index 91512f584..9ba434912 100644
--- a/cli/subcommands/Cargo.toml
+++ b/cli/subcommands/Cargo.toml
@@ -54,6 +54,9 @@ hax-lib-macros-types = {workspace = true, features = ["schemars"]}
 version_check = "0.9"
 toml = "0.8"
 
+[package.metadata.release]
+pre-release-hook = ["dune", "build", "--root", "../../engine", "hax-engine.opam"]
+
 [[package.metadata.release.pre-release-replacements]]
 file = "../../engine/dune-project"
 search = "version [a-z0-9\\.-]+"
diff --git a/engine/hax-engine.opam b/engine/hax-engine.opam
index f9ae457ad..a1c46c487 100644
--- a/engine/hax-engine.opam
+++ b/engine/hax-engine.opam
@@ -1,5 +1,6 @@
 # This file is generated by dune, edit dune-project instead
 opam-version: "2.0"
+version: "0.1.0-alpha.1"
 synopsis: "The engine of hax, a Rust verification tool"
 description:
   "Hax is divided in two: a frontend (written in Rust) and an engine (written in OCaml). This is the engine."
diff --git a/engine/names/Cargo.toml b/engine/names/Cargo.toml
index efc92fca6..58ebcb0d2 100644
--- a/engine/names/Cargo.toml
+++ b/engine/names/Cargo.toml
@@ -12,3 +12,6 @@ description = "Dummy crate containing all the Rust names the hax engine should b
 [dependencies]
 hax-lib-protocol = {path = "../../hax-lib-protocol"}
 hax-lib = {path = "../../hax-lib"}
+
+[package.metadata.release]
+release = false
diff --git a/engine/names/extract/Cargo.toml b/engine/names/extract/Cargo.toml
index c6f9dacb6..bb28feacd 100644
--- a/engine/names/extract/Cargo.toml
+++ b/engine/names/extract/Cargo.toml
@@ -24,3 +24,6 @@ extract_names_mode = []
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(feature, values("rustc"))'] }
+
+[package.metadata.release]
+release = false
diff --git a/hax-lib-protocol-macros/Cargo.toml b/hax-lib-protocol-macros/Cargo.toml
index de9561465..739fd467f 100644
--- a/hax-lib-protocol-macros/Cargo.toml
+++ b/hax-lib-protocol-macros/Cargo.toml
@@ -21,3 +21,6 @@ syn = { version = "2.0", features = [
     "extra-traits",
     "parsing",
 ] }
+
+[package.metadata.release]
+release = false
diff --git a/hax-lib-protocol/Cargo.toml b/hax-lib-protocol/Cargo.toml
index 0dee6ef9e..e442033b1 100644
--- a/hax-lib-protocol/Cargo.toml
+++ b/hax-lib-protocol/Cargo.toml
@@ -10,3 +10,6 @@ readme.workspace = true
 
 [dependencies]
 libcrux = "0.0.2-pre.2"
+
+[package.metadata.release]
+release = false
diff --git a/test-harness/Cargo.toml b/test-harness/Cargo.toml
index e0dbfe4ca..a11bb3e9d 100644
--- a/test-harness/Cargo.toml
+++ b/test-harness/Cargo.toml
@@ -25,3 +25,6 @@ insta = {version = "1.29.0", features = ["filters", "toml"]}
 serde = { version = "1.0", features = ["derive"] }
 regex = "1"
 hax-types.workspace = true
+
+[package.metadata.release]
+release = false