diff --git a/.forgejo/workflows/update.yml b/.forgejo/workflows/update.yml
index c76505d..bf0d0fd 100644
--- a/.forgejo/workflows/update.yml
+++ b/.forgejo/workflows/update.yml
@@ -2,20 +2,20 @@
 #
 # Lives here as the canonical source of truth. The bootstrap
 # script (scripts/bootstrap-distribution-repos.sh in
-# fai/platform) seeds this file into the tap repo at
+# fai/chain-private) seeds this file into the tap repo at
 # .forgejo/workflows/update.yml. Edit it here, run the
 # bootstrap script, the tap repo picks up the new version.
 #
 # What it does:
 #   * Every 4 hours, fetches the latest release manifest for
-#     fai/platform.
+#     fai/chain-private.
 #   * If the version differs from the one currently in
-#     Formula/fai.rb, rewrites the formula's version + sha256
+#     Formula/chain.rb, rewrites the formula's version + sha256
 #     entries (macos-aarch64 + macos-x86_64) and commits.
 #   * Workflow_dispatch trigger lets you force an update from
 #     the Forgejo UI without waiting for the cron tick.
 #
-# Manifest contract: fai/platform's release.yml writes
+# Manifest contract: fai/chain-private's release.yml writes
 # .binaries.{macos-aarch64,macos-x86_64}.sha256 — see
 # crates/fai_hub/src/update.rs::ReleaseManifest for the
 # authoritative schema.
@@ -53,12 +53,12 @@ jobs:
           set -eu
           # Forgejo's releases API returns newest-first.
           REL=$(curl -fsSL \
-            "https://git.flemming.ai/api/v1/repos/fai/platform/releases?limit=1" \
+            "https://git.flemming.ai/api/v1/repos/fai/chain-private/releases?limit=1" \
             | jq -r '.[0]')
           TAG=$(echo "$REL" | jq -r '.tag_name')
           VERSION="${TAG#v}"
           MANIFEST=$(curl -fsSL \
-            "https://git.flemming.ai/fai/platform/releases/download/${TAG}/manifest.json")
+            "https://git.flemming.ai/fai/chain-private/releases/download/${TAG}/manifest.json")
           MAC_ARM=$(echo "$MANIFEST" | jq -r '.binaries["macos-aarch64"].sha256 // empty')
           MAC_X64=$(echo "$MANIFEST" | jq -r '.binaries["macos-x86_64"].sha256 // empty')
           if [ -z "$MAC_ARM" ] || [ -z "$MAC_X64" ]; then
@@ -75,11 +75,11 @@ jobs:
         id: current
         if: steps.manifest.outputs.skip != 'true'
         run: |
-          CUR=$(grep -E '^\s*version\s+"' Formula/fai.rb \
+          CUR=$(grep -E '^\s*version\s+"' Formula/chain.rb \
             | head -1 | sed -E 's/.*"([^"]+)".*/\1/')
           echo "version=$CUR" >> "$GITHUB_OUTPUT"
 
-      - name: Rewrite Formula/fai.rb
+      - name: Rewrite Formula/chain.rb
         id: rewrite
         if: |
           steps.manifest.outputs.skip != 'true'
@@ -92,7 +92,7 @@ jobs:
           set -eu
           python3 - <<'PY'
           import os, re, pathlib
-          p = pathlib.Path("Formula/fai.rb")
+          p = pathlib.Path("Formula/chain.rb")
           src = p.read_text()
           new_version = os.environ["NEW_VERSION"]
           arm_sha = os.environ["NEW_SHA_AARCH64"]
@@ -126,8 +126,8 @@ jobs:
           NEW_VERSION: ${{ steps.manifest.outputs.version }}
         run: |
           set -eu
-          git config user.email "platform@flemming.ai"
+          git config user.email "chain@flemming.ai"
           git config user.name "fai-tap-bot"
-          git add Formula/fai.rb
+          git add Formula/chain.rb
           git commit -s -m "chore: formula -> v${NEW_VERSION}"
           git push origin "HEAD:${GITHUB_REF_NAME}"
diff --git a/Formula/fai.rb b/Formula/chain.rb
similarity index 59%
rename from Formula/fai.rb
rename to Formula/chain.rb
index b2ccd1f..b9e6294 100644
--- a/Formula/fai.rb
+++ b/Formula/chain.rb
@@ -1,10 +1,10 @@
-# Homebrew formula skeleton for the F∆I Platform CLI.
+# Homebrew formula skeleton for the Ch∆In CLI.
 #
 # Lives in this repo as the canonical source — the actual
 # distribution is a checkout of `fai/homebrew-tap` (a separate
 # Forgejo repo, seeded by
 # `scripts/bootstrap-distribution-repos.sh`) that carries a copy
-# of this file at `Formula/fai.rb`. The tap repo's
+# of this file at `Formula/chain.rb`. The tap repo's
 # `.forgejo/workflows/update.yml` (sourced from
 # `installer/homebrew/forgejo-workflow-update.yml` in this repo)
 # auto-bumps the version + sha256 entries against each new
@@ -13,23 +13,23 @@
 # To install a release from the tap:
 #
 #   brew tap fai/tap https://git.flemming.ai/fai/homebrew-tap
-#   brew install fai
+#   brew install chain
 #
 # To install from this checkout for testing:
 #
-#   brew install --build-from-source ./installer/homebrew/fai.rb
+#   brew install --build-from-source ./installer/homebrew/chain.rb
 #
 # This file is a *skeleton*. The :url / :sha256 placeholders are
 # populated by the release pipeline once macOS builds land on the
-# Forgejo Release page. The class name (`Fai`) is what Homebrew
-# uses to address the formula; lowercase `fai` is the binary on
+# Forgejo Release page. The class name (`Chain`) is what Homebrew
+# uses to address the formula; lowercase `chain` is the binary on
 # disk after install.
 
-class Fai < Formula
+class Chain < Formula
   desc "Deterministic workflow engine for AI-assisted data " \
        "processing in regulated environments"
   homepage "https://flemming.ai"
-  version "0.12.3"
+  version "0.16.0"
   license "Apache-2.0"
 
   # Platform-specific binary URLs + sha256 are filled in per
@@ -37,35 +37,33 @@ class Fai < Formula
   # same release; the formula consumes them on Apple Silicon and
   # Intel macs via stanza selectors.
   if Hardware::CPU.arm?
-    url "https://git.flemming.ai/fai/platform/releases/download/" \
-        "v#{version}/fai-macos-aarch64"
-    sha256 "7a43bebe1c011804f0fdf9ffe5ae36b4356128822a0c105d7c7da294912e5d31"
+    url "https://releases.chain.flemming.ai/v#{version}/chain-macos-aarch64"
+    sha256 "4995c355e79e6afeda34f04e2216c5736d9f088c0392122cd3d6a08f7d1eabf7"
   else
-    url "https://git.flemming.ai/fai/platform/releases/download/" \
-        "v#{version}/fai-macos-x86_64"
-    sha256 "10535025b7ded094ca44a1189f530d016812dc40d6d7139c333ddf451c4ccc12"
+    url "https://releases.chain.flemming.ai/v#{version}/chain-macos-x86_64"
+    sha256 "f50cae5477105e2734fb9c92b7d1889fbbb4e848297fa41ec72638b3c63f5916"
   end
 
   # Plain binary — no source build needed. We rely on the upstream
   # CI to have produced + signed it. Notarization is a separate
   # follow-up.
   def install
-    bin.install Dir["*"].first => "fai"
+    bin.install Dir["*"].first => "chain"
   end
 
-  # `brew test fai` runs this — keeps the formula honest. We don't
+  # `brew test chain` runs this — keeps the formula honest. We don't
   # start the daemon; we only verify the binary is callable.
   test do
-    assert_match version.to_s, shell_output("#{bin}/fai --version")
+    assert_match version.to_s, shell_output("#{bin}/chain --version")
   end
 
   def caveats
     <<~EOS
-      The F∆I daemon is not started automatically. After install:
+      The Ch∆In daemon is not started automatically. After install:
 
-        fai bootstrap            # writes ~/.fai/ layout + PATH marker
-        fai daemon start         # starts the local hub
-        fai install debug.echo   # smoke-test the install path
+        chain bootstrap            # writes ~/.chain/ layout + PATH marker
+        chain daemon start         # starts the local hub
+        chain install debug.echo   # smoke-test the install path
 
       For Studio, install separately from
       https://flemming.ai/get.