diff --git a/BUILDIT.md b/BUILDIT.md
index 3c40e0fd..f89204b0 100644
--- a/BUILDIT.md
+++ b/BUILDIT.md
@@ -15,17 +15,45 @@ it in **30 minutes**. 🏁
 
 </div>
 
-# TODO: fill-in the gaps during the [Rebuild `#207`](https://github.com/dwyl/auth/issues/207)
+- [Build Log 👩‍💻](#build-log-)
+- [TODO](#todo)
+- [1. Setup the `auth` App](#1-setup-the-auth-app)
+  - [1. Add Tailwind](#1-add-tailwind)
+  - [1.6 `Petal.build` Components](#16-petalbuild-components)
+  - [1.7 `mix format`](#17-mix-format)
+- [ERD `before` adding `groups`](#erd-before-adding-groups)
+- [10. Groups](#10-groups)
+  - [10.1 Create Schema](#101-create-schema)
+  - [10.2 _Test_ Groups Schema](#102-test-groups-schema)
+  - [10.3 Create `LiveView` for `groups`](#103-create-liveview-for-groups)
+  - [10.4 Update `router.ex`](#104-update-routerex)
+- [TODO: Add Screenshot of Groups Live Page!](#todo-add-screenshot-of-groups-live-page)
+  - [10.5 Update Tests](#105-update-tests)
+  - [10.6 Group _Members_](#106-group-members)
+
+<br />
+
+# TODO
+
+We will fill-in the gaps during the [Rebuild `#207`](https://github.com/dwyl/auth/issues/207)
 
 For now I'm just adding the parts that are being added to the "old"
 version of **`auth`** so that we can _easily_ re-create them in the re-build.
 
 
-## 1.6 Petal.build Components
+# 1. Setup the `auth` App
+
+## 1. Add Tailwind
+
+Follow the instructions in:
+https://github.com/dwyl/learn-tailwind#part-2-tailwind-in-phoenix
+
+
+## 1.6 `Petal.build` Components
 
 https://petal.build/components/
 
-# 1.7 `mix format`
+## 1.7 `mix format`
 
 See: https://github.com/dwyl/mvp/issues/183
 
diff --git a/assets/css/app.css b/assets/css/app.css
index 5af4fd2b..626fc077 100644
--- a/assets/css/app.css
+++ b/assets/css/app.css
@@ -1,3 +1,7 @@
+@import "tailwindcss/base";
+@import "tailwindcss/components";
+@import "tailwindcss/utilities";
+
 /* This file is for your main application css. */
 
 /* @import "./phoenix.css"; */
@@ -54,3 +58,46 @@
   display: block;
   margin: -1rem 0 2rem;
 }
+
+.select-wrapper select {
+  @apply text-sm border-gray-300 rounded-md shadow-sm disabled:bg-gray-100 disabled:cursor-not-allowed focus:border-primary-500 focus:ring-primary-500 dark:border-gray-600 dark:focus:border-primary-500 dark:bg-gray-800 dark:text-gray-300 focus:outline-none ;
+}
+
+label.has-error:not(.phx-no-feedback) {
+  @apply !text-red-900 dark:!text-red-200;
+}
+
+textarea.has-error:not(.phx-no-feedback), input.has-error:not(.phx-no-feedback), select.has-error:not(.phx-no-feedback) {
+  @apply !border-red-500 focus:!border-red-500 !text-red-900 !placeholder-red-700 !bg-red-50 dark:!text-red-100 dark:!placeholder-red-300 dark:!bg-red-900 focus:!ring-red-500;
+}
+
+input[type=file_input].has-error:not(.phx-no-feedback) {
+  @apply !border-red-500 !rounded-md focus:!border-red-500 !text-red-900 !placeholder-red-700 !bg-red-50 file:!border-none dark:!border-none dark:!bg-[#160B0B] dark:text-red-400;
+}
+
+input[type=checkbox].has-error:not(.phx-no-feedback) {
+  @apply !border-red-500 !text-red-900 dark:!text-red-200;
+}
+
+input[type=radio].has-error:not(.phx-no-feedback) {
+  @apply !border-red-500;
+}
+
+/* Modal animation */
+.animate-fade-in-scale {
+  animation: 0.2s ease-in 0s normal forwards 1 fade-in-scale-keys;
+}
+
+.animate-fade-in {
+  animation: 0.2s ease-out 0s normal forwards 1 fade-in-keys;
+}
+
+@keyframes fade-in-scale-keys{
+  0% { scale: 0.95; opacity: 0; }
+  100% { scale: 1.0; opacity: 1; }
+}
+
+@keyframes fade-in-keys{
+  0% { opacity: 0; }
+  100% { opacity: 1; }
+}
\ No newline at end of file
diff --git a/assets/js/app.js b/assets/js/app.js
index ed2dcae3..496094fb 100644
--- a/assets/js/app.js
+++ b/assets/js/app.js
@@ -1,6 +1,5 @@
 // We import the CSS which is extracted to its own file by esbuild.
 // Remove this line if you add a your own CSS build pipeline (e.g postcss).
-import "../css/app.css"
 
 // Include phoenix_html to handle method=PUT/DELETE in forms and buttons.
 import "phoenix_html"
diff --git a/assets/tailwind.config.js b/assets/tailwind.config.js
new file mode 100644
index 00000000..9ef85110
--- /dev/null
+++ b/assets/tailwind.config.js
@@ -0,0 +1,29 @@
+// See the Tailwind configuration guide for advanced usage
+// https://tailwindcss.com/docs/configuration
+
+const plugin = require('tailwindcss/plugin');
+const colors = require("tailwindcss/colors");
+
+module.exports = {
+  content: [
+    './js/**/*.js',
+    '../lib/*_web.ex',
+    '../lib/*_web/**/*.*ex',
+    "../deps/petal_components/**/*.*ex",
+  ],
+  theme: {
+    extend: {
+      colors: {
+        primary: colors.blue,
+        secondary: colors.pink,
+      },
+    },
+  },
+  plugins: [
+    require('@tailwindcss/forms'),
+    plugin(({addVariant}) => addVariant('phx-no-feedback', ['&.phx-no-feedback', '.phx-no-feedback &'])),
+    plugin(({addVariant}) => addVariant('phx-click-loading', ['&.phx-click-loading', '.phx-click-loading &'])),
+    plugin(({addVariant}) => addVariant('phx-submit-loading', ['&.phx-submit-loading', '.phx-submit-loading &'])),
+    plugin(({addVariant}) => addVariant('phx-change-loading', ['&.phx-change-loading', '.phx-change-loading &']))
+  ]
+}
diff --git a/config/config.exs b/config/config.exs
index bfb823e5..d1115a1d 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -45,3 +45,14 @@ config :esbuild,
 
 config :auth_plug,
   api_key: System.get_env("AUTH_API_KEY")
+
+config :tailwind,
+  version: "3.2.0",
+  default: [
+    args: ~w(
+      --config=tailwind.config.js
+      --input=css/app.css
+      --output=../priv/static/assets/app.css
+    ),
+    cd: Path.expand("../assets", __DIR__)
+  ]
diff --git a/lib/auth_web.ex b/lib/auth_web.ex
index 46c539bf..553705cf 100644
--- a/lib/auth_web.ex
+++ b/lib/auth_web.ex
@@ -80,6 +80,7 @@ defmodule AuthWeb do
     quote do
       # Use all HTML functionality (forms, tags, etc)
       use Phoenix.HTML
+      use PetalComponents
 
       # Import LiveView and .heex helpers (live_render, live_patch, <.form>, etc)
       import Phoenix.LiveView.Helpers
diff --git a/lib/auth_web/templates/layout/live.html.heex b/lib/auth_web/templates/layout/live.html.heex
index 3cec5dda..35bd05e3 100644
--- a/lib/auth_web/templates/layout/live.html.heex
+++ b/lib/auth_web/templates/layout/live.html.heex
@@ -1,4 +1,20 @@
 <!-- LiveView Layout File -->
-<body>
+<.container class="my-10">
+  <.alert
+    color="info"
+    class="mb-5"
+    label={live_flash(@flash, :info)}
+    phx-click="lv:clear-flash"
+    phx-value-key="info"
+  />
+
+  <.alert
+    color="danger"
+    class="mb-5"
+    label={live_flash(@flash, :error)}
+    phx-click="lv:clear-flash"
+    phx-value-key="error"
+  />
+
   <%= @inner_content %>
-</body>
\ No newline at end of file
+</.container>
\ No newline at end of file
diff --git a/mix.exs b/mix.exs
index 537a20e1..363fae6c 100644
--- a/mix.exs
+++ b/mix.exs
@@ -88,6 +88,13 @@ defmodule Auth.Mixfile do
       # Useful functions: https://github.com/dwyl/useful
       {:useful, "~> 1.0.8"},
 
+      # Tailwind CSS
+      # See: https://github.com/dwyl/learn-tailwind
+      {:tailwind, "~> 0.1", runtime: Mix.env() == :dev},
+
+      # https://petal.build/components
+      {:petal_components, "~> 0.18"},
+
       # Ping to Wake Heroku Instance: https://github.com/dwyl/ping
       {:ping, "~> 1.1.0"},
 
@@ -116,7 +123,11 @@ defmodule Auth.Mixfile do
   # See the documentation for `Mix` for more info on aliases.
   defp aliases do
     [
-      "assets.deploy": ["esbuild default --minify", "phx.digest"],
+      "assets.deploy": [
+        "tailwind default --minify",
+        "esbuild default --minify",
+        "phx.digest"
+      ],
       c: ["coveralls.html"],
       "ecto.setup": ["ecto.create --quiet", "ecto.migrate --quiet", "seeds"],
       "ecto.reset": ["ecto.drop", "ecto.setup"],
diff --git a/mix.lock b/mix.lock
index 5e946da5..8d613b9c 100644
--- a/mix.lock
+++ b/mix.lock
@@ -31,6 +31,7 @@
   "floki": {:hex, :floki, "0.33.1", "f20f1eb471e726342b45ccb68edb9486729e7df94da403936ea94a794f072781", [:mix], [{:html_entities, "~> 0.5.0", [hex: :html_entities, repo: "hexpm", optional: false]}], "hexpm", "461035fd125f13fdf30f243c85a0b1e50afbec876cbf1ceefe6fddd2e6d712c6"},
   "gettext": {:hex, :gettext, "0.19.1", "564953fd21f29358e68b91634799d9d26989f8d039d7512622efb3c3b1c97892", [:mix], [], "hexpm", "10c656c0912b8299adba9b061c06947511e3f109ab0d18b44a866a4498e77222"},
   "hackney": {:hex, :hackney, "1.18.1", "f48bf88f521f2a229fc7bae88cf4f85adc9cd9bcf23b5dc8eb6a1788c662c4f6", [:rebar3], [{:certifi, "~>2.9.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~>6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~>1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~>1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "3.3.1", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~>1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "a4ecdaff44297e9b5894ae499e9a070ea1888c84afdd1fd9b7b2bc384950128e"},
+  "heroicons": {:hex, :heroicons, "0.5.1", "cca0dcca07af5f74d8a7d111e40418d3615d65e6773c0ea10e20cef070fd30aa", [:mix], [{:castore, ">= 0.0.0", [hex: :castore, repo: "hexpm", optional: false]}, {:phoenix_live_view, "~> 0.18.2", [hex: :phoenix_live_view, repo: "hexpm", optional: false]}], "hexpm", "4b096d0a1d50e9054df9b12cc637c9f65c3972ff086791d3f2d1846f0653117e"},
   "html_entities": {:hex, :html_entities, "0.5.2", "9e47e70598da7de2a9ff6af8758399251db6dbb7eebe2b013f2bbd2515895c3c", [:mix], [], "hexpm", "c53ba390403485615623b9531e97696f076ed415e8d8058b1dbaa28181f4fdcc"},
   "html_sanitize_ex": {:hex, :html_sanitize_ex, "1.4.2", "c479398b6de798c03eb5d04a0a9a9159d73508f83f6590a00b8eacba3619cf4c", [:mix], [{:mochiweb, "~> 2.15", [hex: :mochiweb, repo: "hexpm", optional: false]}], "hexpm", "aef6c28585d06a9109ad591507e508854c5559561f950bbaea773900dd369b0e"},
   "httpoison": {:hex, :httpoison, "1.8.2", "9eb9c63ae289296a544842ef816a85d881d4a31f518a0fec089aaa744beae290", [:mix], [{:hackney, "~> 1.17", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm", "2bb350d26972e30c96e2ca74a1aaf8293d61d0742ff17f01e0279fef11599921"},
@@ -47,6 +48,7 @@
   "mochiweb": {:hex, :mochiweb, "2.22.0", "f104d6747c01a330c38613561977e565b788b9170055c5241ac9dd6e4617cba5", [:rebar3], [], "hexpm", "cbbd1fd315d283c576d1c8a13e0738f6dafb63dc840611249608697502a07655"},
   "nimble_parsec": {:hex, :nimble_parsec, "1.2.3", "244836e6e3f1200c7f30cb56733fd808744eca61fd182f731eac4af635cc6d0b", [:mix], [], "hexpm", "c8d789e39b9131acf7b99291e93dae60ab48ef14a7ee9d58c6964f59efb570b0"},
   "parse_trans": {:hex, :parse_trans, "3.3.1", "16328ab840cc09919bd10dab29e431da3af9e9e7e7e6f0089dd5a2d2820011d8", [:rebar3], [], "hexpm", "07cd9577885f56362d414e8c4c4e6bdf10d43a8767abb92d24cbe8b24c54888b"},
+  "petal_components": {:hex, :petal_components, "0.18.5", "f7abd370d179e8ab1eff491a7a85526984ead78b41190b03f6ec5df04932cdbf", [:mix], [{:heroicons, "~> 0.5.0", [hex: :heroicons, repo: "hexpm", optional: false]}, {:phoenix, "~> 1.6", [hex: :phoenix, repo: "hexpm", optional: false]}, {:phoenix_ecto, "~> 4.4", [hex: :phoenix_ecto, repo: "hexpm", optional: false]}, {:phoenix_live_view, "~> 0.18.0", [hex: :phoenix_live_view, repo: "hexpm", optional: false]}], "hexpm", "d38982b0e9fa39884cfaf5e49bdc77a6be16b17b73fc19001b2a27fe4b672dca"},
   "phoenix": {:hex, :phoenix, "1.6.14", "57678366dc1d5bad49832a0fc7f12c2830c10d3eacfad681bfe9602cd4445f04", [:mix], [{:castore, ">= 0.0.0", [hex: :castore, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:phoenix_pubsub, "~> 2.0", [hex: :phoenix_pubsub, repo: "hexpm", optional: false]}, {:phoenix_view, "~> 1.0", [hex: :phoenix_view, repo: "hexpm", optional: false]}, {:plug, "~> 1.10", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 2.2", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:plug_crypto, "~> 1.2", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "d48c0da00b3d4cd1aad6055387917491af9f6e1f1e96cedf6c6b7998df9dba26"},
   "phoenix_ecto": {:hex, :phoenix_ecto, "4.4.0", "0672ed4e4808b3fbed494dded89958e22fb882de47a97634c0b13e7b0b5f7720", [:mix], [{:ecto, "~> 3.3", [hex: :ecto, repo: "hexpm", optional: false]}, {:phoenix_html, "~> 2.14.2 or ~> 3.0", [hex: :phoenix_html, repo: "hexpm", optional: true]}, {:plug, "~> 1.9", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "09864e558ed31ee00bd48fcc1d4fc58ae9678c9e81649075431e69dbabb43cc1"},
   "phoenix_html": {:hex, :phoenix_html, "3.2.0", "1c1219d4b6cb22ac72f12f73dc5fad6c7563104d083f711c3fcd8551a1f4ae11", [:mix], [{:plug, "~> 1.5", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "36ec97ba56d25c0136ef1992c37957e4246b649d620958a1f9fa86165f8bc54f"},
@@ -64,6 +66,7 @@
   "sobelow": {:hex, :sobelow, "0.11.1", "23438964486f8112b41e743bbfd402da3e5b296fdc9eacab29914b79c48916dd", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "9897363a7eff96f4809304a90aad819e2ad5e5d24db547af502885146746a53c"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.6", "cf344f5692c82d2cd7554f5ec8fd961548d4fd09e7d22f5b62482e5aeaebd4b0", [:make, :mix, :rebar3], [], "hexpm", "bdb0d2471f453c88ff3908e7686f86f9be327d065cc1ec16fa4540197ea04680"},
   "stream_data": {:hex, :stream_data, "0.5.0", "b27641e58941685c75b353577dc602c9d2c12292dd84babf506c2033cd97893e", [:mix], [], "hexpm", "012bd2eec069ada4db3411f9115ccafa38540a3c78c4c0349f151fc761b9e271"},
+  "tailwind": {:hex, :tailwind, "0.1.9", "25ba09d42f7bfabe170eb67683a76d6ec2061952dc9bd263a52a99ba3d24bd4d", [:mix], [{:castore, ">= 0.0.0", [hex: :castore, repo: "hexpm", optional: false]}], "hexpm", "9213f87709c458aaec313bb5f2df2b4d2cedc2b630e4ae821bf3c54c47a56d0b"},
   "telemetry": {:hex, :telemetry, "1.1.0", "a589817034a27eab11144ad24d5c0f9fab1f58173274b1e9bae7074af9cbee51", [:rebar3], [], "hexpm", "b727b2a1f75614774cff2d7565b64d0dfa5bd52ba517f16543e6fc7efcc0df48"},
   "telemetry_metrics": {:hex, :telemetry_metrics, "0.6.1", "315d9163a1d4660aedc3fee73f33f1d355dcc76c5c3ab3d59e76e3edf80eef1f", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "7be9e0871c41732c233be71e4be11b96e56177bf15dde64a8ac9ce72ac9834c6"},
   "telemetry_poller": {:hex, :telemetry_poller, "1.0.0", "db91bb424e07f2bb6e73926fcafbfcbcb295f0193e0a00e825e589a0a47e8453", [:rebar3], [{:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "b3a24eafd66c3f42da30fc3ca7dda1e9d546c12250a2d60d7b81d264fbec4f6e"},