From fa2cb627eae071864d7a756a2b7ffc0a7de58348 Mon Sep 17 00:00:00 2001
From: Wojtek Mach <wojtek@wojtekmach.pl>
Date: Wed, 5 Nov 2025 19:48:08 +0100
Subject: [PATCH 1/9] `mix help app:APP`: Always load all Elixir built-in apps

Before this patch it was basically impossible to do e.g.: `mix help app:ex_unit`.
---
 lib/mix/lib/mix/tasks/help.ex        |  4 ++++
 lib/mix/test/mix/tasks/help_test.exs | 15 +++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/lib/mix/lib/mix/tasks/help.ex b/lib/mix/lib/mix/tasks/help.ex
index fe442239608..aad57cf864a 100644
--- a/lib/mix/lib/mix/tasks/help.ex
+++ b/lib/mix/lib/mix/tasks/help.ex
@@ -114,6 +114,10 @@ defmodule Mix.Tasks.Help do
     loadpaths!()
     app = String.to_atom(app)
 
+    if app in [:eex, :elixir, :ex_unit, :iex, :logger, :mix] do
+      Application.ensure_loaded(app)
+    end
+
     if modules = Application.spec(app, :modules) do
       for module <- modules,
           not (module |> Atom.to_string() |> String.starts_with?("Elixir.Mix.Tasks.")),
diff --git a/lib/mix/test/mix/tasks/help_test.exs b/lib/mix/test/mix/tasks/help_test.exs
index 3d4f3a3a00a..de8157756bc 100644
--- a/lib/mix/test/mix/tasks/help_test.exs
+++ b/lib/mix/test/mix/tasks/help_test.exs
@@ -206,6 +206,21 @@ defmodule Mix.Tasks.HelpTest do
     end)
   end
 
+  test "help Elixir stdlib app", context do
+    apps = for {app, _, _} <- Application.loaded_applications(), do: app
+    assert :mix in apps
+    refute :iex in apps
+
+    in_tmp(context.test, fn ->
+      output =
+        capture_io(fn ->
+          Mix.Tasks.Help.run(["app:iex"])
+        end)
+
+      assert output =~ "# IEx\n\nElixir's interactive shell."
+    end)
+  end
+
   test "help unknown app:APP", context do
     in_tmp(context.test, fn ->
       Mix.Tasks.Help.run(["app:foobar"])

From f52edbbe4e59d73525b77ee6e72b0b83fe13929b Mon Sep 17 00:00:00 2001
From: Wojtek Mach <wojtek@wojtekmach.pl>
Date: Wed, 5 Nov 2025 23:14:54 +0100
Subject: [PATCH 2/9] Support OTP apps too

---
 lib/mix/lib/mix/tasks/help.ex        |  7 ++----
 lib/mix/test/mix/tasks/help_test.exs | 33 ++++++++++++----------------
 2 files changed, 16 insertions(+), 24 deletions(-)

diff --git a/lib/mix/lib/mix/tasks/help.ex b/lib/mix/lib/mix/tasks/help.ex
index aad57cf864a..b8d59da72f2 100644
--- a/lib/mix/lib/mix/tasks/help.ex
+++ b/lib/mix/lib/mix/tasks/help.ex
@@ -113,15 +113,12 @@ defmodule Mix.Tasks.Help do
   def run(["app:" <> app]) do
     loadpaths!()
     app = String.to_atom(app)
-
-    if app in [:eex, :elixir, :ex_unit, :iex, :logger, :mix] do
-      Application.ensure_loaded(app)
-    end
+    Application.ensure_loaded(app)
 
     if modules = Application.spec(app, :modules) do
       for module <- modules,
           not (module |> Atom.to_string() |> String.starts_with?("Elixir.Mix.Tasks.")),
-          {:docs_v1, _, :elixir, "text/markdown", %{"en" => <<doc::binary>>}, _, _} <-
+          {:docs_v1, _, _, "text/markdown", %{"en" => <<doc::binary>>}, _, _} <-
             [Code.fetch_docs(module)] do
         leading = doc |> String.split(["\n\n", "\r\n\r\n"], parts: 2) |> hd()
         "# #{inspect(module)}\n#{leading}\n"
diff --git a/lib/mix/test/mix/tasks/help_test.exs b/lib/mix/test/mix/tasks/help_test.exs
index de8157756bc..48d92c5a12e 100644
--- a/lib/mix/test/mix/tasks/help_test.exs
+++ b/lib/mix/test/mix/tasks/help_test.exs
@@ -195,30 +195,25 @@ defmodule Mix.Tasks.HelpTest do
     end)
   end
 
-  test "help app:APP", context do
-    in_tmp(context.test, fn ->
-      output =
-        capture_io(fn ->
-          Mix.Tasks.Help.run(["app:mix"])
-        end)
-
-      assert output =~ "# Mix\n\nMix is a build tool"
-    end)
-  end
-
-  test "help Elixir stdlib app", context do
+  test "help Elixir/OTP app" do
     apps = for {app, _, _} <- Application.loaded_applications(), do: app
     assert :mix in apps
     refute :iex in apps
+    refute :ftp in apps
 
-    in_tmp(context.test, fn ->
-      output =
-        capture_io(fn ->
-          Mix.Tasks.Help.run(["app:iex"])
-        end)
+    output =
+      capture_io(fn ->
+        Mix.Tasks.Help.run(["app:iex"])
+      end)
 
-      assert output =~ "# IEx\n\nElixir's interactive shell."
-    end)
+    assert output =~ "# IEx\n\nElixir's interactive shell."
+
+    output =
+      capture_io(fn ->
+        Mix.Tasks.Help.run(["app:ftp"])
+      end)
+
+    assert output =~ "# :ftp"
   end
 
   test "help unknown app:APP", context do

From df94759dcbd2c89b1723b9ebb2242490d4a04337 Mon Sep 17 00:00:00 2001
From: Wojtek Mach <wojtek@wojtekmach.pl>
Date: Wed, 5 Nov 2025 23:53:30 +0100
Subject: [PATCH 3/9] Use Mix.ensure_application!/1

---
 lib/mix/lib/mix/tasks/help.ex        | 34 ++++++++++++----------------
 lib/mix/test/mix/tasks/help_test.exs |  7 +++---
 2 files changed, 18 insertions(+), 23 deletions(-)

diff --git a/lib/mix/lib/mix/tasks/help.ex b/lib/mix/lib/mix/tasks/help.ex
index b8d59da72f2..03e76eef136 100644
--- a/lib/mix/lib/mix/tasks/help.ex
+++ b/lib/mix/lib/mix/tasks/help.ex
@@ -113,26 +113,22 @@ defmodule Mix.Tasks.Help do
   def run(["app:" <> app]) do
     loadpaths!()
     app = String.to_atom(app)
-    Application.ensure_loaded(app)
-
-    if modules = Application.spec(app, :modules) do
-      for module <- modules,
-          not (module |> Atom.to_string() |> String.starts_with?("Elixir.Mix.Tasks.")),
-          {:docs_v1, _, _, "text/markdown", %{"en" => <<doc::binary>>}, _, _} <-
-            [Code.fetch_docs(module)] do
-        leading = doc |> String.split(["\n\n", "\r\n\r\n"], parts: 2) |> hd()
-        "# #{inspect(module)}\n#{leading}\n"
-      end
-      |> case do
-        [] ->
-          Mix.shell().error("No modules with accessible documentation found for #{app}")
+    Mix.ensure_application!(app)
+
+    for module <- Application.spec(app, :modules),
+        not (module |> Atom.to_string() |> String.starts_with?("Elixir.Mix.Tasks.")),
+        {:docs_v1, _, _, "text/markdown", %{"en" => <<doc::binary>>}, _, _} <-
+          [Code.fetch_docs(module)] do
+      leading = doc |> String.split(["\n\n", "\r\n\r\n"], parts: 2) |> hd()
+      "# #{inspect(module)}\n#{leading}\n"
+    end
+    |> case do
+      [] ->
+        Mix.shell().error("No modules with accessible documentation found for #{app}")
 
-        listing ->
-          docs = listing |> Enum.sort() |> Enum.join()
-          IO.ANSI.Docs.print(docs, "text/markdown", ansi_opts())
-      end
-    else
-      Mix.shell().error("Application #{app} does not exist or is not loaded")
+      listing ->
+        docs = listing |> Enum.sort() |> Enum.join()
+        IO.ANSI.Docs.print(docs, "text/markdown", ansi_opts())
     end
   end
 
diff --git a/lib/mix/test/mix/tasks/help_test.exs b/lib/mix/test/mix/tasks/help_test.exs
index 48d92c5a12e..0c44dec8053 100644
--- a/lib/mix/test/mix/tasks/help_test.exs
+++ b/lib/mix/test/mix/tasks/help_test.exs
@@ -216,11 +216,10 @@ defmodule Mix.Tasks.HelpTest do
     assert output =~ "# :ftp"
   end
 
-  test "help unknown app:APP", context do
-    in_tmp(context.test, fn ->
+  test "help unknown app:APP" do
+    assert_raise Mix.Error, ~r/The application \"foobar\" could not be found/, fn ->
       Mix.Tasks.Help.run(["app:foobar"])
-      assert_received {:mix_shell, :error, ["Application foobar does not exist or is not loaded"]}
-    end)
+    end
   end
 
   test "help Elixir MODULE", context do

From 256ac590bc42652247cd0b28786a22ca2c6d95c8 Mon Sep 17 00:00:00 2001
From: Wojtek Mach <wojtek@wojtekmach.pl>
Date: Wed, 5 Nov 2025 23:54:29 +0100
Subject: [PATCH 4/9] Update test descriptions

---
 lib/mix/test/mix/tasks/help_test.exs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/mix/test/mix/tasks/help_test.exs b/lib/mix/test/mix/tasks/help_test.exs
index 0c44dec8053..bbb1e2b707f 100644
--- a/lib/mix/test/mix/tasks/help_test.exs
+++ b/lib/mix/test/mix/tasks/help_test.exs
@@ -195,7 +195,7 @@ defmodule Mix.Tasks.HelpTest do
     end)
   end
 
-  test "help Elixir/OTP app" do
+  test "help app:APP" do
     apps = for {app, _, _} <- Application.loaded_applications(), do: app
     assert :mix in apps
     refute :iex in apps
@@ -216,7 +216,7 @@ defmodule Mix.Tasks.HelpTest do
     assert output =~ "# :ftp"
   end
 
-  test "help unknown app:APP" do
+  test "help app:UNKNOWN" do
     assert_raise Mix.Error, ~r/The application \"foobar\" could not be found/, fn ->
       Mix.Tasks.Help.run(["app:foobar"])
     end

From 9ac95547fda431ff4d0c63effe6520197ee01169 Mon Sep 17 00:00:00 2001
From: Wojtek Mach <wojtek@wojtekmach.pl>
Date: Thu, 6 Nov 2025 00:02:47 +0100
Subject: [PATCH 5/9] bring back in_tmp?

---
 lib/mix/test/mix/tasks/help_test.exs | 34 ++++++++++++++++------------
 1 file changed, 19 insertions(+), 15 deletions(-)

diff --git a/lib/mix/test/mix/tasks/help_test.exs b/lib/mix/test/mix/tasks/help_test.exs
index bbb1e2b707f..bb94433ac66 100644
--- a/lib/mix/test/mix/tasks/help_test.exs
+++ b/lib/mix/test/mix/tasks/help_test.exs
@@ -195,31 +195,35 @@ defmodule Mix.Tasks.HelpTest do
     end)
   end
 
-  test "help app:APP" do
+  test "help app:APP", context do
     apps = for {app, _, _} <- Application.loaded_applications(), do: app
     assert :mix in apps
     refute :iex in apps
     refute :ftp in apps
 
-    output =
-      capture_io(fn ->
-        Mix.Tasks.Help.run(["app:iex"])
-      end)
+    in_tmp(context.test, fn ->
+      output =
+        capture_io(fn ->
+          Mix.Tasks.Help.run(["app:iex"])
+        end)
 
-    assert output =~ "# IEx\n\nElixir's interactive shell."
+      assert output =~ "# IEx\n\nElixir's interactive shell."
 
-    output =
-      capture_io(fn ->
-        Mix.Tasks.Help.run(["app:ftp"])
-      end)
+      output =
+        capture_io(fn ->
+          Mix.Tasks.Help.run(["app:ftp"])
+        end)
 
-    assert output =~ "# :ftp"
+      assert output =~ "# :ftp"
+    end)
   end
 
-  test "help app:UNKNOWN" do
-    assert_raise Mix.Error, ~r/The application \"foobar\" could not be found/, fn ->
-      Mix.Tasks.Help.run(["app:foobar"])
-    end
+  test "help app:UNKNOWN", context do
+    in_tmp(context.test, fn ->
+      assert_raise Mix.Error, ~r/The application \"foobar\" could not be found/, fn ->
+        Mix.Tasks.Help.run(["app:foobar"])
+      end
+    end)
   end
 
   test "help Elixir MODULE", context do

From 296a622e13f5a51206642a70b8423a3292c1e28d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Valim?= <jose.valim@gmail.com>
Date: Sat, 8 Nov 2025 11:57:30 +0100
Subject: [PATCH 6/9] Update help.ex

---
 lib/mix/lib/mix/tasks/help.ex | 208 +++++++++++++++++++++++++++++++---
 1 file changed, 195 insertions(+), 13 deletions(-)

diff --git a/lib/mix/lib/mix/tasks/help.ex b/lib/mix/lib/mix/tasks/help.ex
index 03e76eef136..b8a97cbd24b 100644
--- a/lib/mix/lib/mix/tasks/help.ex
+++ b/lib/mix/lib/mix/tasks/help.ex
@@ -1,3 +1,181 @@
+defmodule TS.MixProject do
+  use Mix.Project
+
+  def project do
+    [
+      app: :ts,
+      version: "0.1.0",
+      elixir: "~> 1.18",
+      elixirc_paths: elixirc_paths(Mix.env()),
+      start_permanent: Mix.env() == :prod,
+      aliases: aliases(),
+      deps: deps(),
+      listeners: [Phoenix.CodeReloader],
+      releases: releases(),
+      compilers: [:phoenix_live_view] ++ Mix.compilers()
+    ]
+  end
+
+  def application do
+    [
+      mod: {TS.Application, []},
+      extra_applications: extra_applications(Mix.env())
+    ]
+  end
+
+  defp extra_applications(:test), do: [:logger]
+  defp extra_applications(_), do: [:logger, :runtime_tools, :os_mon]
+
+  def cli do
+    [
+      preferred_envs: [
+        "test.e2e": :e2e,
+        "test.e2e.assets": :e2e,
+        "test.e2e.setup": :e2e,
+        "test.e2e.setup_without_playwright": :e2e
+      ]
+    ]
+  end
+
+  defp elixirc_paths(env) when env in [:test, :e2e], do: ["lib", "test/support"]
+  defp elixirc_paths(_), do: ["lib"]
+
+  defp deps do
+    [
+      {:tidewave, "~> 0.1", [only: [:dev]] ++ tidewave_opts()},
+      {:oban, "~> 2.0"},
+      {:phoenix, "~> 1.8.0"},
+      {:phoenix_ecto, "~> 4.5"},
+      {:ecto_sql, "~> 3.10"},
+      {:postgrex, ">= 0.0.0"},
+      {:phoenix_html, "~> 4.1"},
+      {:phoenix_live_reload, "~> 1.2", only: :dev},
+      {:phoenix_live_view, "~> 1.1"},
+      {:bun, "~> 1.4", runtime: Mix.env() == :dev},
+      {:remixicons,
+       github: "Remix-Design/RemixIcon",
+       sparse: "icons",
+       tag: "v4.6.0",
+       app: false,
+       compile: false,
+       depth: 1},
+      {:swoosh, "~> 1.16"},
+      {:finch, "~> 0.20"},
+      {:req, "~> 0.5"},
+      {:gettext, "~> 1.0"},
+      {:jason, "~> 1.2"},
+      {:bandit, "~> 1.5"},
+      {:ueberauth, "~> 0.10.8"},
+      {:ueberauth_github, "~> 0.8.3"},
+      {:libcluster_postgres, "~> 0.2"},
+      {:schematic, "~> 0.5.1"},
+      {:req_sse, github: "wojtekmach/req_sse"},
+
+      # Blog
+      {:nimble_publisher, "~> 1.1", runtime: false},
+      {:makeup, "~> 1.1", runtime: false},
+      {:makeup_elixir, "~> 0.16", runtime: false},
+      {:makeup_syntect, "~> 0.1", runtime: false},
+      {:image, "~> 0.62.0", runtime: false},
+
+      # Test
+      {:mox, "~> 1.0", only: [:test, :e2e]},
+      {:lazy_html, ">= 0.1.0", only: :test},
+
+      # Used for forwarding webhooks in dev
+      {:slipstream, "~> 1.2", only: :dev},
+
+      # Observability
+      {:oban_web, "~> 2.0"},
+      {:phoenix_live_dashboard, "~> 0.8.3"},
+      {:sentry, "~> 11.0"},
+      {:opentelemetry, "~> 1.5"},
+      {:opentelemetry_api, "~> 1.4"},
+      {:opentelemetry_exporter, "~> 1.8"},
+      {:opentelemetry_semantic_conventions, "~> 1.27"},
+      # We require https://github.com/open-telemetry/opentelemetry-erlang-contrib/commit/0569321cfa06147fd1f0813460a836e0019c890b
+      {:opentelemetry_bandit, "~> 0.2.0",
+       github: "open-telemetry/opentelemetry-erlang-contrib",
+       sparse: "instrumentation/opentelemetry_bandit"},
+      {:opentelemetry_phoenix, "~> 2.0"},
+      {:opentelemetry_ecto, "~> 1.2"},
+      {:telemetry_metrics, "~> 1.0"},
+      {:telemetry_poller, "~> 1.0"}
+    ]
+  end
+
+  defp tidewave_opts do
+    if path = System.get_env("TIDEWAVE_PATH") do
+      [path: path]
+    else
+      [github: "tidewave-ai/tidewave_phoenix"]
+    end
+  end
+
+  defp aliases do
+    [
+      setup: ["deps.get", "deps.loadpaths", "assets.setup", "assets.dev", "compile", "ecto.setup"],
+      "ecto.setup": ["ecto.create", "ecto.migrate", "run priv/repo/seeds.exs"],
+      "ecto.reset": ["ecto.drop", "ecto.setup"],
+      test: ["ecto.create --quiet", "ecto.migrate --quiet", "test"],
+      "test.e2e": &e2e_test/1,
+      "test.e2e.setup": ["test.e2e.setup_without_playwright", "bun tc x playwright install"],
+      "test.e2e.assets": ["assets.setup", "assets.dev", "assets.build"],
+      "test.e2e.setup_without_playwright": ["ecto.setup", "assets.setup", "examples.setup"],
+      "examples.setup": [
+        "cmd --cd examples/phoenix mix setup",
+        "cmd --cd examples/rails bundle install",
+        "cmd --cd examples/django scripts/setup.sh",
+        "cmd --cd examples/flask scripts/setup.sh",
+        "cmd --cd examples/fastapi scripts/setup.sh",
+        "cmd --cd examples/nextjs bun install",
+        "cmd --cd examples/phoenix/client/react bun install"
+      ],
+      "assets.setup": [
+        "app.config --no-compile",
+        "bun.install --if-missing",
+        "bun assets install",
+        "bun tc install",
+        "bun tc run build"
+      ],
+      "assets.dev": ["bun acp_demo_agent install"],
+      "assets.build": ["bun css --minify", "bun js --minify"],
+      "assets.deploy": ["assets.build", "phx.digest"],
+      "format.all": [
+        "format",
+        "bun tc run --silent format",
+        "bun acp_demo_agent run --silent format"
+      ]
+    ]
+  end
+
+  defp releases do
+    [
+      ts: [
+        applications: [
+          opentelemetry_exporter: :permanent,
+          opentelemetry: :temporary
+        ]
+      ]
+    ]
+  end
+
+  defp e2e_test(args) do
+    # we wrap the playwright command to send it a sigint (Ctrl+C) when
+    # the BEAM exits, otherwise the started webservers don't properly shut down
+    {_, exit_status} =
+      System.cmd(
+        Path.expand("e2e-zombie.sh", __DIR__),
+        ["../_build/bun", "x", "playwright", "test"] ++ args,
+        cd: "tc",
+        stderr_to_stdout: true,
+        into: IO.stream(:stdio, :line)
+      )
+
+    System.stop(exit_status)
+  end
+end
+
 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: 2021 The Elixir Team
 # SPDX-FileCopyrightText: 2012 Plataformatec
@@ -115,20 +293,24 @@ defmodule Mix.Tasks.Help do
     app = String.to_atom(app)
     Mix.ensure_application!(app)
 
-    for module <- Application.spec(app, :modules),
-        not (module |> Atom.to_string() |> String.starts_with?("Elixir.Mix.Tasks.")),
-        {:docs_v1, _, _, "text/markdown", %{"en" => <<doc::binary>>}, _, _} <-
-          [Code.fetch_docs(module)] do
-      leading = doc |> String.split(["\n\n", "\r\n\r\n"], parts: 2) |> hd()
-      "# #{inspect(module)}\n#{leading}\n"
-    end
-    |> case do
-      [] ->
-        Mix.shell().error("No modules with accessible documentation found for #{app}")
+    if modules = Application.spec(app, :modules) do
+      for module <- modules,
+          not (module |> Atom.to_string() |> String.starts_with?("Elixir.Mix.Tasks.")),
+          {:docs_v1, _, _, "text/markdown", %{"en" => <<doc::binary>>}, _, _} <-
+            [Code.fetch_docs(module)] do
+        leading = doc |> String.split(["\n\n", "\r\n\r\n"], parts: 2) |> hd()
+        "# #{inspect(module)}\n#{leading}\n"
+      end
+      |> case do
+        [] ->
+          Mix.shell().error("No modules with accessible documentation found for #{app}")
 
-      listing ->
-        docs = listing |> Enum.sort() |> Enum.join()
-        IO.ANSI.Docs.print(docs, "text/markdown", ansi_opts())
+        listing ->
+          docs = listing |> Enum.sort() |> Enum.join()
+          IO.ANSI.Docs.print(docs, "text/markdown", ansi_opts())
+      end
+    else
+      Mix.shell().error("Application #{app} does not exist or is not loaded")
     end
   end
 

From f583f912cb0a1611b0386f08e5d77e79e027de25 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Valim?= <jose.valim@gmail.com>
Date: Sat, 8 Nov 2025 11:58:05 +0100
Subject: [PATCH 7/9] Remove TS.MixProject module and its contents

---
 lib/mix/lib/mix/tasks/help.ex | 178 ----------------------------------
 1 file changed, 178 deletions(-)

diff --git a/lib/mix/lib/mix/tasks/help.ex b/lib/mix/lib/mix/tasks/help.ex
index b8a97cbd24b..3eb784909cd 100644
--- a/lib/mix/lib/mix/tasks/help.ex
+++ b/lib/mix/lib/mix/tasks/help.ex
@@ -1,181 +1,3 @@
-defmodule TS.MixProject do
-  use Mix.Project
-
-  def project do
-    [
-      app: :ts,
-      version: "0.1.0",
-      elixir: "~> 1.18",
-      elixirc_paths: elixirc_paths(Mix.env()),
-      start_permanent: Mix.env() == :prod,
-      aliases: aliases(),
-      deps: deps(),
-      listeners: [Phoenix.CodeReloader],
-      releases: releases(),
-      compilers: [:phoenix_live_view] ++ Mix.compilers()
-    ]
-  end
-
-  def application do
-    [
-      mod: {TS.Application, []},
-      extra_applications: extra_applications(Mix.env())
-    ]
-  end
-
-  defp extra_applications(:test), do: [:logger]
-  defp extra_applications(_), do: [:logger, :runtime_tools, :os_mon]
-
-  def cli do
-    [
-      preferred_envs: [
-        "test.e2e": :e2e,
-        "test.e2e.assets": :e2e,
-        "test.e2e.setup": :e2e,
-        "test.e2e.setup_without_playwright": :e2e
-      ]
-    ]
-  end
-
-  defp elixirc_paths(env) when env in [:test, :e2e], do: ["lib", "test/support"]
-  defp elixirc_paths(_), do: ["lib"]
-
-  defp deps do
-    [
-      {:tidewave, "~> 0.1", [only: [:dev]] ++ tidewave_opts()},
-      {:oban, "~> 2.0"},
-      {:phoenix, "~> 1.8.0"},
-      {:phoenix_ecto, "~> 4.5"},
-      {:ecto_sql, "~> 3.10"},
-      {:postgrex, ">= 0.0.0"},
-      {:phoenix_html, "~> 4.1"},
-      {:phoenix_live_reload, "~> 1.2", only: :dev},
-      {:phoenix_live_view, "~> 1.1"},
-      {:bun, "~> 1.4", runtime: Mix.env() == :dev},
-      {:remixicons,
-       github: "Remix-Design/RemixIcon",
-       sparse: "icons",
-       tag: "v4.6.0",
-       app: false,
-       compile: false,
-       depth: 1},
-      {:swoosh, "~> 1.16"},
-      {:finch, "~> 0.20"},
-      {:req, "~> 0.5"},
-      {:gettext, "~> 1.0"},
-      {:jason, "~> 1.2"},
-      {:bandit, "~> 1.5"},
-      {:ueberauth, "~> 0.10.8"},
-      {:ueberauth_github, "~> 0.8.3"},
-      {:libcluster_postgres, "~> 0.2"},
-      {:schematic, "~> 0.5.1"},
-      {:req_sse, github: "wojtekmach/req_sse"},
-
-      # Blog
-      {:nimble_publisher, "~> 1.1", runtime: false},
-      {:makeup, "~> 1.1", runtime: false},
-      {:makeup_elixir, "~> 0.16", runtime: false},
-      {:makeup_syntect, "~> 0.1", runtime: false},
-      {:image, "~> 0.62.0", runtime: false},
-
-      # Test
-      {:mox, "~> 1.0", only: [:test, :e2e]},
-      {:lazy_html, ">= 0.1.0", only: :test},
-
-      # Used for forwarding webhooks in dev
-      {:slipstream, "~> 1.2", only: :dev},
-
-      # Observability
-      {:oban_web, "~> 2.0"},
-      {:phoenix_live_dashboard, "~> 0.8.3"},
-      {:sentry, "~> 11.0"},
-      {:opentelemetry, "~> 1.5"},
-      {:opentelemetry_api, "~> 1.4"},
-      {:opentelemetry_exporter, "~> 1.8"},
-      {:opentelemetry_semantic_conventions, "~> 1.27"},
-      # We require https://github.com/open-telemetry/opentelemetry-erlang-contrib/commit/0569321cfa06147fd1f0813460a836e0019c890b
-      {:opentelemetry_bandit, "~> 0.2.0",
-       github: "open-telemetry/opentelemetry-erlang-contrib",
-       sparse: "instrumentation/opentelemetry_bandit"},
-      {:opentelemetry_phoenix, "~> 2.0"},
-      {:opentelemetry_ecto, "~> 1.2"},
-      {:telemetry_metrics, "~> 1.0"},
-      {:telemetry_poller, "~> 1.0"}
-    ]
-  end
-
-  defp tidewave_opts do
-    if path = System.get_env("TIDEWAVE_PATH") do
-      [path: path]
-    else
-      [github: "tidewave-ai/tidewave_phoenix"]
-    end
-  end
-
-  defp aliases do
-    [
-      setup: ["deps.get", "deps.loadpaths", "assets.setup", "assets.dev", "compile", "ecto.setup"],
-      "ecto.setup": ["ecto.create", "ecto.migrate", "run priv/repo/seeds.exs"],
-      "ecto.reset": ["ecto.drop", "ecto.setup"],
-      test: ["ecto.create --quiet", "ecto.migrate --quiet", "test"],
-      "test.e2e": &e2e_test/1,
-      "test.e2e.setup": ["test.e2e.setup_without_playwright", "bun tc x playwright install"],
-      "test.e2e.assets": ["assets.setup", "assets.dev", "assets.build"],
-      "test.e2e.setup_without_playwright": ["ecto.setup", "assets.setup", "examples.setup"],
-      "examples.setup": [
-        "cmd --cd examples/phoenix mix setup",
-        "cmd --cd examples/rails bundle install",
-        "cmd --cd examples/django scripts/setup.sh",
-        "cmd --cd examples/flask scripts/setup.sh",
-        "cmd --cd examples/fastapi scripts/setup.sh",
-        "cmd --cd examples/nextjs bun install",
-        "cmd --cd examples/phoenix/client/react bun install"
-      ],
-      "assets.setup": [
-        "app.config --no-compile",
-        "bun.install --if-missing",
-        "bun assets install",
-        "bun tc install",
-        "bun tc run build"
-      ],
-      "assets.dev": ["bun acp_demo_agent install"],
-      "assets.build": ["bun css --minify", "bun js --minify"],
-      "assets.deploy": ["assets.build", "phx.digest"],
-      "format.all": [
-        "format",
-        "bun tc run --silent format",
-        "bun acp_demo_agent run --silent format"
-      ]
-    ]
-  end
-
-  defp releases do
-    [
-      ts: [
-        applications: [
-          opentelemetry_exporter: :permanent,
-          opentelemetry: :temporary
-        ]
-      ]
-    ]
-  end
-
-  defp e2e_test(args) do
-    # we wrap the playwright command to send it a sigint (Ctrl+C) when
-    # the BEAM exits, otherwise the started webservers don't properly shut down
-    {_, exit_status} =
-      System.cmd(
-        Path.expand("e2e-zombie.sh", __DIR__),
-        ["../_build/bun", "x", "playwright", "test"] ++ args,
-        cd: "tc",
-        stderr_to_stdout: true,
-        into: IO.stream(:stdio, :line)
-      )
-
-    System.stop(exit_status)
-  end
-end
-
 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: 2021 The Elixir Team
 # SPDX-FileCopyrightText: 2012 Plataformatec

From 11fd7a331af54c7c7c6b2958778bff5a921e8a0d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Valim?= <jose.valim@gmail.com>
Date: Sat, 8 Nov 2025 11:59:24 +0100
Subject: [PATCH 8/9] Apply suggestions from code review

---
 lib/mix/lib/mix/tasks/help.ex        | 10 +++++++++-
 lib/mix/test/mix/tasks/help_test.exs | 14 ++++----------
 2 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/lib/mix/lib/mix/tasks/help.ex b/lib/mix/lib/mix/tasks/help.ex
index 3eb784909cd..e3895756e7a 100644
--- a/lib/mix/lib/mix/tasks/help.ex
+++ b/lib/mix/lib/mix/tasks/help.ex
@@ -113,7 +113,15 @@ defmodule Mix.Tasks.Help do
   def run(["app:" <> app]) do
     loadpaths!()
     app = String.to_atom(app)
-    Mix.ensure_application!(app)
+
+    # If the application is not available, attempt to load it from Erlang/Elixir
+    if is_nil(Application.spec(app, :vsn)) do
+      try do
+        Mix.ensure_application!(app)
+      rescue
+        _ -> :ok
+      end
+    end
 
     if modules = Application.spec(app, :modules) do
       for module <- modules,
diff --git a/lib/mix/test/mix/tasks/help_test.exs b/lib/mix/test/mix/tasks/help_test.exs
index bb94433ac66..419c96a9163 100644
--- a/lib/mix/test/mix/tasks/help_test.exs
+++ b/lib/mix/test/mix/tasks/help_test.exs
@@ -196,11 +196,6 @@ defmodule Mix.Tasks.HelpTest do
   end
 
   test "help app:APP", context do
-    apps = for {app, _, _} <- Application.loaded_applications(), do: app
-    assert :mix in apps
-    refute :iex in apps
-    refute :ftp in apps
-
     in_tmp(context.test, fn ->
       output =
         capture_io(fn ->
@@ -211,18 +206,17 @@ defmodule Mix.Tasks.HelpTest do
 
       output =
         capture_io(fn ->
-          Mix.Tasks.Help.run(["app:ftp"])
+          Mix.Tasks.Help.run(["app:parsetools"])
         end)
 
-      assert output =~ "# :ftp"
+      assert output =~ "# :leex"
     end)
   end
 
   test "help app:UNKNOWN", context do
     in_tmp(context.test, fn ->
-      assert_raise Mix.Error, ~r/The application \"foobar\" could not be found/, fn ->
-        Mix.Tasks.Help.run(["app:foobar"])
-      end
+      Mix.Tasks.Help.run(["app:foobar"])
+      assert_received {:mix_shell, :error, ["Application foobar does not exist or is not loaded"]}
     end)
   end
 

From 3ec1ed979118d829a365ff2dd77781e89ac7e8e2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Valim?= <jose.valim@gmail.com>
Date: Sat, 8 Nov 2025 12:11:02 +0100
Subject: [PATCH 9/9] Update lib/mix/test/mix/tasks/help_test.exs

---
 lib/mix/test/mix/tasks/help_test.exs | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/lib/mix/test/mix/tasks/help_test.exs b/lib/mix/test/mix/tasks/help_test.exs
index 419c96a9163..c48f8c17a0a 100644
--- a/lib/mix/test/mix/tasks/help_test.exs
+++ b/lib/mix/test/mix/tasks/help_test.exs
@@ -204,12 +204,14 @@ defmodule Mix.Tasks.HelpTest do
 
       assert output =~ "# IEx\n\nElixir's interactive shell."
 
-      output =
-        capture_io(fn ->
-          Mix.Tasks.Help.run(["app:parsetools"])
-        end)
+      if System.otp_release() >= "27" do
+        output =
+          capture_io(fn ->
+            Mix.Tasks.Help.run(["app:parsetools"])
+          end)
 
-      assert output =~ "# :leex"
+        assert output =~ "# :leex"
+      end
     end)
   end