diff --git a/tests/test_doc_pages.py b/tests/test_doc_pages.py
index 025cde83..73d75bfd 100644
--- a/tests/test_doc_pages.py
+++ b/tests/test_doc_pages.py
@@ -699,13 +699,14 @@ class FirstInstallWalkthrough(unittest.TestCase):
         step3 = _section(self.run, "The file index and the download")
         step4 = _section(self.run, "The end of the run")
         step5 = _section(self.run, "A later check")
-        # First install names the three endings a run prints, and no count:
-        # a figure from one setup read as the size of every install.
+        # First install names the three endings the full screen shows as
+        # its title, and no count: a figure from one setup read as the size
+        # of every install.
         source = (ROOT / "install.py").read_text(encoding="utf-8")
-        for ending in ("Done.", "Finished with errors.", "Nothing was installed."):
+        for ending in ("Done", "Finished with errors", "Nothing installed"):
             with self.subTest(ending=ending):
-                self.assertIn(f"`{ending}`", _section(self.text, "5. Read the last line"))
-                self.assertIn(f'"\\n{ending} ', source)
+                self.assertIn(f"**{ending}**", _section(self.text, "5. Read the result"))
+                self.assertIn(f'title = "{ending}"', source)
         self.assertNotRegex(self.text, r"Done\. \d+ files")
         count, size = re.search(r"\n  (\d+) files \(([\d.]+ [KMG]B)\)", step3).groups()
         self.assertIn(f"0/{count} present", step3)
@@ -726,15 +727,17 @@ class FirstInstallWalkthrough(unittest.TestCase):
             self.assertIn(f"all {required} belong", step4)
             self.assertIn(f"other {total - required} are optional", step4)
 
-    def test_no_platform_detected_reads_like_the_installer(self):
-        source = (ROOT / "install.py").read_text(encoding="utf-8")
-        branch = source.split('print("  No supported platform detected.")', 1)[1][:1600]
-        self.assertIn("if not interactive or listing:", branch)
-        self.assertIn("_prompt_manual_platform(os_type)", branch)
+    def test_nothing_found_reads_like_the_installer(self):
+        # The one-liner hands the terminal to the installer, which opens the
+        # full screen: its first screen says the heading and offers the row.
+        import install
+
         self.assertIn('"$INSTALLER" "$@" </dev/tty', (ROOT / "install.sh").read_text(encoding="utf-8"))
-        section = _section(self.text, "No supported platform detected.")
-        self.assertIn("a menu follows", section)
-        self.assertIn("--no-input", section)
+        state = install.TuiState()
+        screen = "\n".join(install.tui_view(state, 80, 24))
+        self.assertIn("Nothing was found here.", screen)
+        section = _section(self.text, "Nothing was found here.")
+        self.assertIn(f"**{install.tui_rows(state)[-1].label}**", section)
         self.assertNotIn("cannot stop and ask", section)
 
 
diff --git a/tests/test_site_r2_wiki.py b/tests/test_site_r2_wiki.py
index 361114bd..2c284a33 100644
--- a/tests/test_site_r2_wiki.py
+++ b/tests/test_site_r2_wiki.py
@@ -125,15 +125,21 @@ class FirstInstallEnds(unittest.TestCase):
     """C7, B15: the page said `Done.` may list failures, and sent a wrong
     folder to a section with no answer for it."""
 
-    def test_the_wrong_folder_answer_is_dest(self):
-        section = _section(_wiki("first-install.md"), "2. Check the folder it found")
-        self.assertIn("--dest", section)
+    def test_the_wrong_folder_answer_is_on_the_screen(self):
+        # The one-liner opens the full screen: its first screen has the
+        # answer, a row the page names as the interface spells it.
+        import install
+
+        section = _section(_wiki("first-install.md"), "2. Check the setup it found")
+        state = install.TuiState()
+        row = install.tui_rows(state)[-1].label
+        self.assertIn(f"**{row}**", section)
         self.assertIn("<your setup>", section)
         self.assertNotIn("Batocera", section)
 
     def test_the_diagram_follows_the_steps(self):
         text = _wiki("first-install.md")
-        self.assertLess(text.index("## 5. Read the last line"), text.index("<!-- image: install-flow -->"))
+        self.assertLess(text.index("## 5. Read the result"), text.index("<!-- image: install-flow -->"))
 
 
 class OneNamePerPage(unittest.TestCase):
diff --git a/tests/test_site_r3_wiki.py b/tests/test_site_r3_wiki.py
index 78970435..3fadac8b 100644
--- a/tests/test_site_r3_wiki.py
+++ b/tests/test_site_r3_wiki.py
@@ -251,11 +251,21 @@ class SmallCopyFixes(unittest.TestCase):
         self.assertIn("`retroarch/cores/system/` on the SD card", guides)
         self.assertIn("--dest E:\\retroarch\\cores\\system", section)
 
-    def test_the_end_line_is_the_printed_one(self):
-        section = _section(_wiki("first-install.md"), "5. Read the last line")
-        self.assertIn("`N files installed, M already up to date.`", section)
-        source = (REPO_ROOT / "install.py").read_text(encoding="utf-8")
-        self.assertIn("installed, \"\n          f\"{_plural(up_to_date, 'file')} already up to date.", source)
+    def test_the_end_is_the_shown_one(self):
+        # The one-liner opens the full screen: the page names the titles
+        # its result screen shows, as tui_outcome writes them.
+        import install
+
+        section = _section(_wiki("first-install.md"), "5. Read the result")
+        state = install.TuiState()
+        state.stack, state.code = ["result"], 0
+        for summary in ({"installed": 3, "up_to_date": 0, "failed": []},
+                        {"installed": 2, "failed": [{"dest": "a.bin", "reason": "HTTP 404"}]},
+                        {"installed": 0, "failed": [{"dest": "a.bin", "reason": "HTTP 404"}]}):
+            state.summary = summary
+            title, _lines = install.tui_outcome(state)
+            with self.subTest(title=title):
+                self.assertIn(f"**{title}**", section)
 
 
 class CommunityAnswers(unittest.TestCase):
diff --git a/wiki/first-install.md b/wiki/first-install.md
index 6b461a83..33a97475 100644
--- a/wiki/first-install.md
+++ b/wiki/first-install.md
@@ -67,44 +67,44 @@ curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh |
 On Batocera, Recalbox and similar setups, see
 [Get your files](../which-pack.md).
 
-## 2. Check the folder it found
+## 2. Check the setup it found
 
-It shows your setup and its BIOS folder:
+It opens a menu:
 
 ```
-  Found <your setup> at <its folder>
+ RetroBIOS: Where do you play?
+ Found on this machine:
+ > <your setup>
+   Another setup or folder
+ BIOS folder: <its folder>
 ```
 
-- **Right folder?** Go on.
-- **Wrong folder?** Press Ctrl+C. Run it again with your folder:
+- **Right folder?** Press Enter.
+- **Wrong folder?** Choose **Another setup or folder**, then browse to yours.
+- **A handheld's SD card in a reader?** It is listed, as **muOS SD card**.
 
-<!-- os-tabs windows: --dest D:\path\to\bios -->
-```sh
-curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --dest ~/path/to/bios
-```
+Arrows move, Enter chooses, Esc goes back. A controller's A and B do the same.
 
-## 3. Choose what to install
+## 3. Install
 
-```
-  Enter) install everything
-  i) only what the installed cores read
-  c) choose systems, cores and regions
-  q) quit
-```
+The next screen counts the missing files and the free space.
+Press Enter on **Install**. **Choose systems** keeps the consoles you
+play.
 
-**Enter** installs everything. **c** lets you pick consoles.
+**Old card?** In a card reader, choose **Copy the BIOS files from your old
+card or a folder**, then the card. It stays unchanged.
 
 ## 4. Wait
 
-Ctrl+C stops it. Run the command again to carry on.
+B or Ctrl+C stops it. Run it again to carry on.
 
-## 5. Read the last line
+## 5. Read the result
 
-- **`Done.`** `N files installed, M already up to date.` All files are in place.
-- **`Finished with errors.`** Some files failed. Run the same command again.
-  It retries only those.
-- **`Nothing was installed.`** The lines above it say why. See
-  [If it stops](#if-it-stops).
+- **Done**: all files are in place.
+- **Finished with errors**: run the command again. It retries only those.
+- **Nothing installed**: the screen says why. See [If it stops](#if-it-stops).
+
+For questions line by line (screen readers), add `--plain`.
 
 ## What the command does
 
@@ -127,18 +127,14 @@ All good:
 
 ## Undo
 
-Every file it replaces goes to a `retrobios-backup` folder next to your BIOS
-folder. The last lines say how to put them back.
+Files it replaces go to a `retrobios-backup` folder beside your BIOS folder.
+The result says how to restore them.
 
 ## If it stops
 
-### No supported platform detected.
+### Nothing was found here.
 
-At a terminal, a menu follows. Pick your setup by its number, then type its
-BIOS folder, or press Enter for the usual one.
-
-With `--no-input`, or without a terminal, it stops and prints the command to
-use.
+Choose **Another setup or folder**, then your setup and its folder.
 
 ### Error: Python 3.8 or newer is required.
 
@@ -157,9 +153,9 @@ The download was cut short. Nothing was changed. Run the command again.
 
 You cannot write there. Do what the message says.
 
-### Not enough space on the drive holding ...
+### The card is full
 
-Nothing was written. Free some space, or pick another drive with `--dest`.
+Nothing was written. Free some space, or choose another folder.
 
 ### The game still does not start
 
diff --git a/wiki/troubleshooting.md b/wiki/troubleshooting.md
index af29ce2a..deec29fe 100644
--- a/wiki/troubleshooting.md
+++ b/wiki/troubleshooting.md
@@ -38,7 +38,8 @@ Run it without `--check`. It adds missing files and replaces wrong ones.
 - **Right folder?** [Get your files](../which-pack.md) names it.
 - **Exact name?** `scph5501.bin` and `SCPH-5501.BIN` differ. On Linux,
   capitals count too.
-- **A `bios` folder inside your BIOS folder?** Move its files up one level.
+- **A `bios` folder inside your BIOS folder?** Run the installer: it copies
+  those files up one level.
 - **Unzipped by hand on Linux?** The command adds names that differ by
   capitals.
 - **A ZIP in parts, like `Pack.part1of2.zip`?** Unzip every part into one