diff --git a/.github/workflows/fcx-web.yml b/.github/workflows/fcx-web.yml
new file mode 100644
index 0000000..0126578
--- /dev/null
+++ b/.github/workflows/fcx-web.yml
@@ -0,0 +1,107 @@
+name: fcx-web
+
+on:
+  push:
+  pull_request:
+
+# Cancel superseded runs on the same ref so rapid pushes don't pile up.
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+env:
+  MIX_ENV: test
+
+jobs:
+  # Formatting is version-independent, so check it once instead of per matrix cell.
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    env:
+      ELIXIR_VERSION: "1.15"
+      OTP_VERSION: "25"
+    defaults:
+      run:
+        working-directory: fcx-web
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Set up Elixir / OTP
+        uses: erlef/setup-beam@v1
+        with:
+          otp-version: ${{ env.OTP_VERSION }}
+          elixir-version: ${{ env.ELIXIR_VERSION }}
+
+      - name: Cache deps and _build
+        uses: actions/cache@v5
+        with:
+          path: |
+            fcx-web/deps
+            fcx-web/_build
+          key: ${{ runner.os }}-mix-lint-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-${{ hashFiles('fcx-web/mix.lock') }}
+          restore-keys: ${{ runner.os }}-mix-lint-${{ env.ELIXIR_VERSION }}-${{ env.OTP_VERSION }}-
+
+      - name: Install dependencies
+        run: mix deps.get
+
+      # Compile before format so all dependency apps are loaded.
+      - name: Compile
+        run: mix compile
+
+      - name: Check formatting
+        run: mix format --check-formatted
+
+  test:
+    name: fcx-web tests (Elixir ${{ matrix.elixir }} / OTP ${{ matrix.otp }})
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - elixir: "1.15"
+            otp: "25"
+          - elixir: "1.16"
+            otp: "26"
+          - elixir: "1.17"
+            otp: "27"
+          - elixir: "1.18"
+            otp: "27"
+          - elixir: "1.19"
+            otp: "28"
+
+    defaults:
+      run:
+        working-directory: fcx-web
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Set up Elixir / OTP
+        uses: erlef/setup-beam@v1
+        with:
+          otp-version: ${{ matrix.otp }}
+          elixir-version: ${{ matrix.elixir }}
+
+      - name: Cache deps and _build
+        uses: actions/cache@v5
+        with:
+          path: |
+            fcx-web/deps
+            fcx-web/_build
+          key: ${{ runner.os }}-mix-${{ matrix.otp }}-${{ matrix.elixir }}-${{ hashFiles('fcx-web/mix.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-mix-${{ matrix.otp }}-${{ matrix.elixir }}-
+
+      - name: Install dependencies
+        run: mix deps.get
+
+      - name: Compile (warnings as errors)
+        run: mix compile --warnings-as-errors
+
+      # SQLite test DB — no database service required.
+      - name: Run tests
+        run: mix test
diff --git a/fcx-web/config/config.exs b/fcx-web/config/config.exs
index ea016ae..c26cfca 100644
--- a/fcx-web/config/config.exs
+++ b/fcx-web/config/config.exs
@@ -11,7 +11,8 @@ config :fullcontrol_x,
   namespace: FullControlX,
   ecto_repos: [FullControlX.Repo],
   fcxd_path: "../zig-out/bin/FullControlX",
-  files_path: "priv/static/assets"
+  files_path: "priv/static/assets",
+  start_driver: true
 
 # Configures the endpoint
 config :fullcontrol_x, FullControlXWeb.Endpoint,
diff --git a/fcx-web/config/prod.exs b/fcx-web/config/prod.exs
index 160d44d..0b88d7f 100644
--- a/fcx-web/config/prod.exs
+++ b/fcx-web/config/prod.exs
@@ -9,7 +9,8 @@ import Config
 # manifest is generated by the `mix phx.digest` task,
 # which you should run after static files are built and
 # before starting your production server.
-config :fullcontrol_x, FullControlXWeb.Endpoint, cache_static_manifest: "priv/static/cache_manifest.json"
+config :fullcontrol_x, FullControlXWeb.Endpoint,
+  cache_static_manifest: "priv/static/cache_manifest.json"
 
 # Do not print debug messages in production
 config :logger, level: :info
diff --git a/fcx-web/config/test.exs b/fcx-web/config/test.exs
index 9555d0d..a4c5371 100644
--- a/fcx-web/config/test.exs
+++ b/fcx-web/config/test.exs
@@ -17,8 +17,11 @@ config :fullcontrol_x, FullControlXWeb.Endpoint,
   secret_key_base: "EgTKrB+SZcnfHfZUYem501WigH0KvvCe5J6YSP6JfwxM7aKjQ2BQWw2SaCUegyhS",
   server: false
 
+# No native fcxd binary in test; don't start the driver.
+config :fullcontrol_x, start_driver: false
+
 # Print only warnings and errors during test
-config :logger, level: :warn
+config :logger, level: :warning
 
 # Initialize plugs at runtime for faster test compilation
 config :phoenix, :plug_init_mode, :runtime
diff --git a/fcx-web/lib/fullcontrol_x/application.ex b/fcx-web/lib/fullcontrol_x/application.ex
index b4fd541..85eaab8 100644
--- a/fcx-web/lib/fullcontrol_x/application.ex
+++ b/fcx-web/lib/fullcontrol_x/application.ex
@@ -9,20 +9,17 @@ defmodule FullControlX.Application do
   def start(_type, _args) do
     FullControlX.print_connection_qrcode()
 
-    children = [
-      # Start the Ecto repository
-      FullControlX.Repo,
-      # Start the Telemetry supervisor
-      FullControlXWeb.Telemetry,
-      # Start the PubSub system
-      {Phoenix.PubSub, name: FullControlX.PubSub},
-      # Start the Endpoint (http/https)
-      FullControlXWeb.Endpoint,
-      # Start a worker by calling: FullControlX.Worker.start_link(arg)
-      # {FullControlX.Worker, arg}
-      {FullControlX.Driver,
-       name: FullControlX.Driver, fcxd_path: Application.get_env(:fullcontrol_x, :fcxd_path)}
-    ]
+    children =
+      [
+        # Start the Ecto repository
+        FullControlX.Repo,
+        # Start the Telemetry supervisor
+        FullControlXWeb.Telemetry,
+        # Start the PubSub system
+        {Phoenix.PubSub, name: FullControlX.PubSub},
+        # Start the Endpoint (http/https)
+        FullControlXWeb.Endpoint
+      ] ++ driver_children()
 
     # See https://hexdocs.pm/elixir/Supervisor.html
     # for other strategies and supported options
@@ -30,6 +27,18 @@ defmodule FullControlX.Application do
     Supervisor.start_link(children, opts)
   end
 
+  # Skip the driver where its native fcxd binary isn't built (e.g. test).
+  defp driver_children do
+    if Application.get_env(:fullcontrol_x, :start_driver, true) do
+      [
+        {FullControlX.Driver,
+         name: FullControlX.Driver, fcxd_path: Application.get_env(:fullcontrol_x, :fcxd_path)}
+      ]
+    else
+      []
+    end
+  end
+
   # Tell Phoenix to update the endpoint configuration
   # whenever the application is updated.
   @impl true
diff --git a/fcx-web/lib/fullcontrol_x_web/commands_live.ex b/fcx-web/lib/fullcontrol_x_web/commands_live.ex
index fa10715..9164b91 100644
--- a/fcx-web/lib/fullcontrol_x_web/commands_live.ex
+++ b/fcx-web/lib/fullcontrol_x_web/commands_live.ex
@@ -12,10 +12,11 @@ defmodule FullControlXWeb.CommandsLive do
     ~H"""
     <.header title="FullControlX" />
     <div class="grow"></div>
+
     <ul class="flex gap-2 overflow-x-scroll scrollbar-hidden scroll-smooth">
       <%= for app <- @apps do %>
         <li class={app_class(app)}>
-          <%= "#{Map.get(app, "localized_name")}" %>
+          {"#{Map.get(app, "localized_name")}"}
         </li>
       <% end %>
     </ul>
diff --git a/fcx-web/lib/fullcontrol_x_web/components.ex b/fcx-web/lib/fullcontrol_x_web/components.ex
index c4fb5a8..f3c68d6 100644
--- a/fcx-web/lib/fullcontrol_x_web/components.ex
+++ b/fcx-web/lib/fullcontrol_x_web/components.ex
@@ -32,8 +32,7 @@ defmodule FullControlXWeb.Components do
   def switch(assigns) do
     ~H"""
     <label class="switch">
-      <input type="checkbox" checked />
-      <span class="slider"></span>
+      <input type="checkbox" checked /> <span class="slider"></span>
     </label>
     """
   end
diff --git a/fcx-web/lib/fullcontrol_x_web/info_live.ex b/fcx-web/lib/fullcontrol_x_web/info_live.ex
index e23e454..4f3004f 100644
--- a/fcx-web/lib/fullcontrol_x_web/info_live.ex
+++ b/fcx-web/lib/fullcontrol_x_web/info_live.ex
@@ -21,31 +21,49 @@ defmodule FullControlXWeb.InfoLive do
     <div class="m-auto flex flex-col gap-4 justify-start items-start p-4 max-w-xl">
       <div>
         <h2>Host</h2>
+
         <div>
           <%= for {key, value} <- @info do %>
             <div>
-              <%= "#{key}: #{value}" %>
+              {"#{key}: #{value}"}
             </div>
           <% end %>
         </div>
       </div>
+
       <div>
         <h2>URLs</h2>
+
         <ul>
           <%= for url <- @urls do %>
-            <li><a href={url} target="_blank"><%= url %></a></li>
+            <li><a href={url} target="_blank">{url}</a></li>
           <% end %>
         </ul>
       </div>
+
       <div>
         <h2>QR code</h2>
-        <p><%= @url_in_qrcode %></p>
+
+        <p>{@url_in_qrcode}</p>
         <img src={@qrcode_svg_url} />
       </div>
+
       <div>
         <h2>FullControlX</h2>
-        <p>FullControlX is the official Open Source "spinoff" of the commercial app <a href="https://fullcontrol.cescobaz.com" target="_blank">FullControl</a>.</p>
-        <p>Developed and maintained by Francesco Burelli. More info at <a href="https://github.com/cescobaz/FullControlX" target="_blank">Github Project Homepage</a>.</p>
+
+        <p>
+          FullControlX is the official Open Source "spinoff" of the commercial app <a
+            href="https://fullcontrol.cescobaz.com"
+            target="_blank"
+          >FullControl</a>.
+        </p>
+
+        <p>
+          Developed and maintained by Francesco Burelli. More info at <a
+            href="https://github.com/cescobaz/FullControlX"
+            target="_blank"
+          >Github Project Homepage</a>.
+        </p>
       </div>
     </div>
     """
diff --git a/fcx-web/lib/fullcontrol_x_web/tools_live.ex b/fcx-web/lib/fullcontrol_x_web/tools_live.ex
index 5c4207b..4fb43e2 100644
--- a/fcx-web/lib/fullcontrol_x_web/tools_live.ex
+++ b/fcx-web/lib/fullcontrol_x_web/tools_live.ex
@@ -44,16 +44,19 @@ defmodule FullControlXWeb.ToolsLive do
             <._button title={button.title} value={button.value} icon={button.icon} />
           <% end %>
         </div>
+
         <div class="flex justify-center gap-4">
           <%= for button <- @arrows_buttons do %>
             <._button title={button.title} value={button.value} icon={button.icon} />
           <% end %>
         </div>
+
         <div class="flex justify-center gap-4">
           <%= for button <- @media_buttons do %>
             <._button title={button.title} value={button.value} icon={button.icon} />
           <% end %>
         </div>
+
         <div class="flex justify-center gap-4">
           <%= for button <- @audio_buttons do %>
             <._button title={button.title} value={button.value} icon={button.icon} />
diff --git a/fcx-web/lib/fullcontrol_x_web/trackpad_live.ex b/fcx-web/lib/fullcontrol_x_web/trackpad_live.ex
index bb56cb7..3e3bea7 100644
--- a/fcx-web/lib/fullcontrol_x_web/trackpad_live.ex
+++ b/fcx-web/lib/fullcontrol_x_web/trackpad_live.ex
@@ -17,12 +17,24 @@ defmodule FullControlXWeb.TrackpadLive do
       <div id="placeholder" class="w-full h-full flex flex-col items-center justify-center">
         <div class="p-4">
           <p><span class="font-semibold">Left click</span>: one tap</p>
+
           <p><span class="font-semibold">Right click</span>: one tap with two fingers</p>
+
           <p><span class="font-semibold">Scroll</span>: drag with two fingers</p>
+
           <p><span class="font-semibold">Drag</span>: one tap and drag or drag with three fingers</p>
         </div>
       </div>
-      <div id="trackpad" class="absolute left-0 top-0 h-full w-full" phx-touchstart="touchstart" phx-touchmove="touchmove" phx-touchend="touchend" phx-touchcancel="touchcancel" phx-hook="Trackpad">
+
+      <div
+        id="trackpad"
+        class="absolute left-0 top-0 h-full w-full"
+        phx-touchstart="touchstart"
+        phx-touchmove="touchmove"
+        phx-touchend="touchend"
+        phx-touchcancel="touchcancel"
+        phx-hook="Trackpad"
+      >
       </div>
     </div>
     """
diff --git a/fcx-web/mix.exs b/fcx-web/mix.exs
index 6148e7b..58c1eac 100644
--- a/fcx-web/mix.exs
+++ b/fcx-web/mix.exs
@@ -5,7 +5,7 @@ defmodule FullControlX.MixProject do
     [
       app: :fullcontrol_x,
       version: "0.1.0",
-      elixir: "~> 1.14",
+      elixir: "~> 1.15",
       elixirc_paths: elixirc_paths(Mix.env()),
       start_permanent: Mix.env() == :prod,
       aliases: aliases(),
diff --git a/fcx-web/test/fullcontrol_x_web/views/error_view_test.exs b/fcx-web/test/fullcontrol_x_web/views/error_view_test.exs
index a54d261..5101678 100644
--- a/fcx-web/test/fullcontrol_x_web/views/error_view_test.exs
+++ b/fcx-web/test/fullcontrol_x_web/views/error_view_test.exs
@@ -1,14 +1,14 @@
 defmodule FullControlXWeb.ErrorViewTest do
   use FullControlXWeb.ConnCase, async: true
 
-  # Bring render/3 and render_to_string/3 for testing custom views
-  import Phoenix.View
-
-  test "renders 404.html" do
-    assert render_to_string(FullControlXWeb.ErrorView, "404.html", []) == "Not Found"
+  # ErrorView has no templates, so it falls back to template_not_found/2,
+  # which returns the status message for the requested template.
+  test "renders the 404 status message" do
+    assert FullControlXWeb.ErrorView.template_not_found("404.html", %{}) == "Not Found"
   end
 
-  test "renders 500.html" do
-    assert render_to_string(FullControlXWeb.ErrorView, "500.html", []) == "Internal Server Error"
+  test "renders the 500 status message" do
+    assert FullControlXWeb.ErrorView.template_not_found("500.html", %{}) ==
+             "Internal Server Error"
   end
 end