diff --git a/.github/actions/slack-notify/action.yml b/.github/actions/slack-notify/action.yml
new file mode 100644
index 000000000000..6f094de20640
--- /dev/null
+++ b/.github/actions/slack-notify/action.yml
@@ -0,0 +1,103 @@
+name: 'Slack Notification'
+description: 'Send deployment notifications to Slack'
+
+inputs:
+  step:
+    description: 'Deployment step (start/build_success/failure)'
+    required: true
+  component:
+    description: 'Component being deployed'
+    required: true
+  image_tag:
+    description: 'Image tag being deployed'
+    required: true
+  channel:
+    description: 'Slack channel'
+    required: true
+  thread_ts:
+    description: 'Slack thread timestamp'
+    required: false
+  slack_token:
+    description: 'Slack bot token'
+    required: true
+
+outputs:
+  thread_ts:
+    description: "Slack thread timestamp from the initial message"
+    value: ${{ steps.start_notification.outputs.ts }}
+
+runs:
+  using: "composite"
+  steps:
+    - name: Get author email
+      if: inputs.step == 'start'
+      id: author
+      shell: bash
+      run: |
+        # Get last commit author name and email
+        AUTHOR_NAME=$(git log -1 --format='%an')
+        AUTHOR_EMAIL=$(git log -1 --format='%ae')
+
+        if ! CANONICAL=$(git check-mailmap "$AUTHOR_NAME <$AUTHOR_EMAIL>" 2>/dev/null); then
+          echo "email=$AUTHOR_EMAIL" >> $GITHUB_OUTPUT
+          echo "name=$AUTHOR_NAME" >> $GITHUB_OUTPUT
+          exit 0
+        fi
+
+        # Extract email and name from canonical form
+        CANONICAL_EMAIL=$(echo "$CANONICAL" | grep -o '<.*>' | tr -d '<>')
+        CANONICAL_NAME=$(echo "$CANONICAL" | sed 's/ <.*>//')
+
+        echo "email=$CANONICAL_EMAIL" >> $GITHUB_OUTPUT
+        echo "name=$CANONICAL_NAME" >> $GITHUB_OUTPUT
+
+    - name: Lookup by email
+      if: inputs.step == 'start'
+      id: email
+      uses: slackapi/slack-github-action@v2.0.0
+      with:
+        errors: true
+        method: users.lookupByEmail
+        token: ${{ inputs.slack_token }}
+        payload: |
+          email: "${{ steps.author.outputs.email }}"
+
+    - name: Get Slack user ID
+      if: inputs.step == 'start' && steps.email.outputs.ok == 'true'
+      id: slack_user
+      shell: bash
+      run: |
+        RESPONSE='${{ steps.email.outputs.response }}'
+        if ! SLACK_ID=$(echo "$RESPONSE" | jq -r '.user.id'); then
+          echo "Failed to extract Slack user ID" >&2
+          exit 0
+        fi
+        echo "id=$SLACK_ID" >> $GITHUB_OUTPUT
+
+    - name: Notify Build And Deploy Start
+      if: inputs.step == 'start'
+      id: start_notification
+      uses: slackapi/slack-github-action@v2.0.0
+      with:
+        method: chat.postMessage
+        token: ${{ inputs.slack_token }}
+        payload: |
+          channel: ${{ inputs.channel }}
+          text: |
+            🚀 Starting deployment of ${{ inputs.component }} `${{ inputs.image_tag }}`
+            • Commit: <${{ github.server_url }}/${{ github.repository }}/commit/${{ github.sha }}|${{ inputs.image_tag }}>
+            • Workflow: <${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}|View build>
+            • Author: ${{ steps.slack_user.outputs.id != '' && format('<@{0}>', steps.slack_user.outputs.id) || format('`{0}`', steps.author.outputs.name) }}
+
+    - name: Notify Deploy Failure
+      if: inputs.step == 'failure'
+      uses: slackapi/slack-github-action@v2.0.0
+      with:
+        method: chat.postMessage
+        token: ${{ inputs.slack_token }}
+        payload: |
+          channel: ${{ inputs.channel }}
+          thread_ts: "${{ inputs.thread_ts }}"
+          text: |
+            ❌ Build pipeline failed
+            • Check logs: <${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}|View details>
\ No newline at end of file
diff --git a/.github/workflows/deploy-viz.yml b/.github/workflows/deploy-viz.yml
index 9d0a0f4eae55..32e20d8b167c 100644
--- a/.github/workflows/deploy-viz.yml
+++ b/.github/workflows/deploy-viz.yml
@@ -24,6 +24,16 @@ jobs:
         id: short_sha
         run: echo "short_sha=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
 
+      - name: Notify Build And Deploy Start
+        id: build_message
+        uses: ./.github/actions/slack-notify
+        with:
+          step: "start"
+          component: "viz"
+          image_tag: ${{ steps.short_sha.outputs.short_sha }}
+          channel: ${{ secrets.SLACK_CHANNEL_ID }}
+          slack_token: ${{ secrets.SLACK_BOT_TOKEN }}
+
       - name: "Authenticate with Google Cloud"
         uses: "google-github-actions/auth@v1"
         with:
@@ -64,5 +74,18 @@ jobs:
                 regions: 'us-central1',
                 component: 'viz',
                 image_tag: '${{ steps.short_sha.outputs.short_sha }}'
+                slack_thread_ts: "${{ steps.build_message.outputs.thread_ts }}",
+                slack_channel: '${{ secrets.SLACK_CHANNEL_ID }}'
               }
             });
+
+      - name: Notify Failure
+        if: failure()
+        uses: ./.github/actions/slack-notify
+        with:
+          step: "failure"
+          component: "viz"
+          image_tag: ${{ steps.short_sha.outputs.short_sha }}
+          channel: ${{ secrets.SLACK_CHANNEL_ID }}
+          slack_token: ${{ secrets.SLACK_BOT_TOKEN }}
+          thread_ts: "${{ steps.build_message.outputs.thread_ts }}"
diff --git a/.mailmap b/.mailmap
new file mode 100644
index 000000000000..29c0dcfdb38b
--- /dev/null
+++ b/.mailmap
@@ -0,0 +1,35 @@
+Alban Dumouilla <alban@dust.tt>
+Alban Dumouilla <alban@dust.tt> <alban.dumouilla@gmail.com>
+Alexandre Pinot <alexandre@dust.tt>
+Alexandre Pinot <alexandre@dust.tt> <32997243+pinotalexandre@users.noreply.github.com>
+Aubin Tchoi <aubin@dust.tt>
+Aubin Tchoi <aubin@dust.tt> <60398825+aubin-tchoi@users.noreply.github.com>
+Aubin Tchoi <aubin@dust.tt> <aubin.tchoi@gmail.com>
+Daphné Popin <daph@dust.tt>
+Daphné Popin <daph@dust.tt> <daphne.popin@gmail.com>
+Daphné Popin <daph@dust.tt> <PopDaph@users.noreply.github.com>
+Edouard Wautier <ed@dust.tt>
+Edouard Wautier <ed@dust.tt> <4435185+Duncid@users.noreply.github.com>
+Flavien David <flavien@dust.tt>
+Flavien David <flavien@dust.tt> <flavien.david74@gmail.com>
+Gabriel Hubert <gabriel@dust.tt>
+Gabriel Hubert <gabriel@dust.tt> <gabriel.hubert@gmail.com>
+Henry Fontanier <henry@dust.tt>
+Henry Fontanier <henry@dust.tt> <h.fontanier@gmail.com>
+Jules Belveze <jules@dust.tt>
+Jules Belveze <jules@dust.tt> <32683010+JulesBelveze@users.noreply.github.com>
+Jules Belveze <jules@dust.tt> <jules.belveze@hotmail.fr>
+Lucas Massemin <lucas@dust.tt>
+Lucas Massemin <lucas@dust.tt> <lucasmassemin@gmail.com>
+Pauline Pham <pauline@dust.tt>
+Pauline Pham <pauline@dust.tt> <33726902+Yutcam@users.noreply.github.com>
+Philippe Rolet <pr@dust.tt>
+Philippe Rolet <pr@dust.tt> <philipperolet@gmail.com>
+Sebastien Flory <seb@dust.tt>
+Sebastien Flory <seb@dust.tt> <sflory@gmail.com>
+Stanislas Polu <spolu@dust.tt>
+Stanislas Polu <spolu@dust.tt> <spolu@proton.me>
+Thibault Martin <thibault@dust.tt>
+Thibault Martin <thibault@dust.tt> <168569391+thib-martin@users.noreply.github.com>
+Thomas Draier <thomas@dust.tt>
+Thomas Draier <thomas@dust.tt> <thomas.draier@gmail.com>