diff --git a/scripts/tchap/deployment/open-deployment-pr.sh b/scripts/tchap/deployment/open-deployment-pr.sh
new file mode 100644
index 0000000000..e7de52e7be
--- /dev/null
+++ b/scripts/tchap/deployment/open-deployment-pr.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+# Commits all the edited files in tchap-infra into a branch and opens a PR.
+set -e
+
+TCHAP_INFRA_DIR="$1"
+GITHUB_BRANCH="$2"
+if [[ -z "$TCHAP_INFRA_DIR" ]]; then
+    echo "Must provide TCHAP_INFRA_DIR" 1>&2
+    exit 1
+fi
+if [[ -z "$GITHUB_BRANCH" ]]; then
+    echo "Must provide BRANCH_NAME" 1>&2
+    exit 1
+fi
+
+cd $TCHAP_INFRA_DIR
+git checkout -B $GITHUB_BRANCH
+git add .
+git commit -m "Deployment of tchap-web"
+#git push --set-upstream origin <branchname>
+#open PR (needs gh cli) with description saying it's autogenerated.
diff --git a/scripts/tchap/deployment/writeReleaseConfigFiles.js b/scripts/tchap/deployment/writeReleaseConfigFiles.js
index 6ac6c5de44..2ab33193cd 100644
--- a/scripts/tchap/deployment/writeReleaseConfigFiles.js
+++ b/scripts/tchap/deployment/writeReleaseConfigFiles.js
@@ -1,12 +1,11 @@
 /**
  * Writes the files in tchap-infra that you need to create a deployment.
  *
- * Usage : node scripts/tchap/writeReleaseConfigFiles.js --current=4.3.9 --new=4.3.9 --beta=4.3.10 --tchapInfraDir="../tchap-infra"
+ * Usage : node scripts/tchap/deployment/writeReleaseConfigFiles.js --current=4.3.9 --new=4.3.9 --beta=4.3.10 [--tchapInfraDir="../tchap-infra"]
  *
  * Don't run it too many times because the github api will block you :facepalm: Waiting will get you unblocked.
  *
  * Todo :
- *  - custom location of tchap-infra dir
  *  - use token to avoid being throttled
  *  - create the pr !
  */
diff --git a/scripts/tchap/deployment/writeReleaseConfigFiles.withbranch.js b/scripts/tchap/deployment/writeReleaseConfigFiles.withbranch.js
new file mode 100644
index 0000000000..0dd9ecdb9c
--- /dev/null
+++ b/scripts/tchap/deployment/writeReleaseConfigFiles.withbranch.js
@@ -0,0 +1,108 @@
+/**
+ * Writes the files in tchap-infra that you need to create a deployment.
+ *
+ * Usage : node scripts/tchap/deployment/writeReleaseConfigFiles.js --current=4.3.9 --new=4.3.9 --beta=4.3.10
+ * [--tchapInfraDir="../tchap-infra"] [--githubBranch="tchap-web-deploy-4.3.10-to-beta"]
+ *
+ * Don't run it too many times because the github api will block you :facepalm: Waiting will get you unblocked.
+ *
+ * Todo :
+ *  - use token to avoid being throttled
+ *  - create the pr !
+ */
+
+const fs = require('fs');
+
+const fetchReleaseDetails = require('./fetchReleaseDetails').fetchReleaseDetails;
+
+if (process.argv.length < 5) {
+  console.error('Expected arguments like : --current=4.1.2 --new=4.1.3 --beta=4.1.4 [tchapInfraDir="../tchap-infra"]');
+  process.exit(1);
+}
+const versions = {};
+let tchapInfraDir = "../tchap-infra"; // default
+const date = new Date();
+let githubBranch = "deploy-tchap-web-" + date.getFullYear() + (date.getMonth() + 1) + date.getDate(); // default
+process.argv.slice(2).forEach((arg) => {
+  const parts = arg.split("--")[1].split("=")
+  if (parts[0] === "tchapInfraDir") {
+    tchapInfraDir = parts[1]
+    if (tchapInfraDir.endsWith("/")) {
+      tchapInfraDir = tchapInfraDir.slice(0, -1);
+    }
+  } else if (parts[0] === "githubBranch") {
+    githubBranch = parts[1];
+  } else {
+    versions[parts[0]] = parts[1];
+  }
+});
+console.log('Found versions:', versions);
+console.log('Using tchapInfraDir :', tchapInfraDir);
+console.log('Using githubBranch :', githubBranch);
+// todo maybe a bit more input validation...
+
+/*
+ * String looks like :
+---
+current_version: 4.3.fas
+current_version_zip_date: 202310fda
+
+new_version: 4.3.asdf
+new_version_zip_date: 2023100sdf
+
+beta_version: 4.3safd
+beta_version_zip_date: 202310sdf
+ */
+const prepareStringToWrite = async (versions) => {
+  let stringToWrite = "---\n";
+
+  for (const [cookieName, version] of Object.entries(versions)) {
+    // cookieName = e.g. current
+    // version = e.g. 4.3.10
+    const releaseDetails = await fetchReleaseDetails(version)
+    const date = releaseDetails[0].date;
+    // Note : we fetch too much detail, now that we simplified the string to write...
+    // Still leaving it in case we need it.
+
+    stringToWrite += cookieName + "_version: " + version + "\n";
+    stringToWrite += cookieName + "_version_zip_date: " + date + "\n\n";
+  }
+  return stringToWrite;
+};
+
+// env = e.g. "preprod"
+const writeFileForEnv = (envName, stringToWrite) => {
+  const fileToWrite = tchapInfraDir + "/ansible/inventory-" + envName + "/group_vars/webserver/vars";
+  const fileContents = fs.readFileSync(fileToWrite, 'utf8'); // store existing contents into a var
+  // Write our new piece
+  fs.writeFileSync(fileToWrite, stringToWrite, err => {
+    if (err) {
+      console.error(err);
+    }
+  });
+  // rewrite the existing contents, without the first 9 lines.
+  const lines = fileContents.split('\n');
+  lines.splice(0, 9);
+  const toWrite = lines.join('\n');
+  fs.appendFileSync(fileToWrite, toWrite, err => {
+    if (err) {
+      console.error(err);
+    }
+  });
+};
+
+prepareStringToWrite(versions).then(stringToWrite => {
+  for (const envName of ["prod", "preprod", "dev"]) {
+    writeFileForEnv(envName, stringToWrite);
+  }
+
+  /*
+    // WIP
+    require("child_process").execSync(`./scripts/tchap/open-deployment-pr.sh ${tchapInfraDir} ${githubBranch}`, {
+      env: process.env,
+      stdio: ["inherit", "inherit", "inherit"],
+    });
+  */
+});
+
+