diff --git a/install.ps1 b/install.ps1
index 0108187fd..1c80b3ab1 100644
--- a/install.ps1
+++ b/install.ps1
@@ -16,7 +16,7 @@
     # and Invoke-WebRequest throws on a cut transfer before the hash is read:
     # the site's build rewrites this line there (scripts/sitebootstrap.py).
     $mismatchAdvice = "The download was most likely cut short: try again. Within minutes of an update of this project the two files can come from caches of different ages. Waiting five minutes settles that."
-    $defaultInstallSha256 = "209c7614ad968cfc1cf30e69048acfb306cf5f8e3b14e3b00a6339699419e08c"
+    $defaultInstallSha256 = "3eb409c23f487f8b150c02591a33dbd2ea09343516daa388524c1dc66f860ebf"
     $maximumInstallerBytes = 2MB
     $installerExit = 0
     $installer = if ($PSScriptRoot) { Join-Path $PSScriptRoot "install.py" } else { $null }
diff --git a/install.py b/install.py
index 0482c2aa5..00d54382b 100644
--- a/install.py
+++ b/install.py
@@ -6586,17 +6586,24 @@ def _needed_lines(entries: list[dict], heading: str, every: bool = False) -> lis
     count = sum(len(names) for names, _cores in by_system.values())
     lines = [f"  {heading} ({_plural(count, 'file')}):"]
     systems = sorted(by_system)
-    for system in systems if every else systems[:8]:
+    shown = systems if every else systems[:8]
+    for system in shown:
         names, cores = by_system[system]
         readers = f" ({', '.join(sorted(cores))})" if cores else ""
         lines.append(f"    {system}{readers}: {', '.join(sorted(names))}")
+        # Each emulator's own page, one click away: the index alone sent the
+        # user searching several hundred pages for theforceengine.
+        lines += [f"      {SITE_URL}emulators/{core}/" for core in sorted(cores)]
     if not every and len(systems) > 8:
         # A file several systems share is a group of its own, counted as one.
         unit = "groups" if any(", " in system for system in systems) else "systems"
         more = len(systems) - 8
         lines.append(f"    ... and {more} more {unit if more > 1 else unit[:-1]} "
                      "(--check --verbose lists them all)")
-    lines.append(f"  Each emulator's page says what these files are: {SITE_URL}emulators/")
+    if all(by_system[system][1] for system in shown):
+        lines.append("  Each emulator's page, linked above, says what these files are.")
+    else:
+        lines.append(f"  Each emulator's page says what these files are: {SITE_URL}emulators/")
     return lines
 
 
diff --git a/install.sh b/install.sh
index 3246396a6..f6681af45 100755
--- a/install.sh
+++ b/install.sh
@@ -23,7 +23,7 @@ DEFAULT_INSTALL_URL="https://raw.githubusercontent.com/Abdess/retrobios/main/ins
 # curl or wget stop on a cut transfer before the hash is read: the site's
 # build rewrites this line there (scripts/sitebootstrap.py).
 MISMATCH_ADVICE="The download was most likely cut short: try again. Within minutes of an update of this project the two files can come from caches of different ages. Waiting five minutes settles that."
-DEFAULT_INSTALL_SHA256="209c7614ad968cfc1cf30e69048acfb306cf5f8e3b14e3b00a6339699419e08c"
+DEFAULT_INSTALL_SHA256="3eb409c23f487f8b150c02591a33dbd2ea09343516daa388524c1dc66f860ebf"
 MAX_INSTALLER_BYTES=2097152
 
 cleanup() {
diff --git a/install/launchers/index.json b/install/launchers/index.json
index 374f7c557..4c9547932 100644
--- a/install/launchers/index.json
+++ b/install/launchers/index.json
@@ -27,8 +27,8 @@
         {
           "dest": "roms/ports/retrobios/install.py",
           "repo_path": "install.py",
-          "size": 1084827,
-          "sha256": "209c7614ad968cfc1cf30e69048acfb306cf5f8e3b14e3b00a6339699419e08c",
+          "size": 1085228,
+          "sha256": "3eb409c23f487f8b150c02591a33dbd2ea09343516daa388524c1dc66f860ebf",
           "executable": false
         },
         {
@@ -71,8 +71,8 @@
     "muos": {
       "archive": {
         "dest": "ARCHIVE/RetroBIOS.muxapp",
-        "size": 1138454,
-        "sha256": "5748eb969c4bebfca1a560e2c4ffcd8507e20b12ea36c4400386e69a260d330d"
+        "size": 1138855,
+        "sha256": "373aebd78e83ec88a29e4a14a13c6be8f77d40c2b2f8834543bb40a8c254ec95"
       },
       "members": [
         {
@@ -92,8 +92,8 @@
         {
           "name": "RetroBIOS/install.py",
           "repo_path": "install.py",
-          "size": 1084827,
-          "sha256": "209c7614ad968cfc1cf30e69048acfb306cf5f8e3b14e3b00a6339699419e08c",
+          "size": 1085228,
+          "sha256": "3eb409c23f487f8b150c02591a33dbd2ea09343516daa388524c1dc66f860ebf",
           "executable": false
         },
         {
@@ -166,8 +166,8 @@
         {
           "dest": ".config/modules/retrobios/install.py",
           "repo_path": "install.py",
-          "size": 1084827,
-          "sha256": "209c7614ad968cfc1cf30e69048acfb306cf5f8e3b14e3b00a6339699419e08c",
+          "size": 1085228,
+          "sha256": "3eb409c23f487f8b150c02591a33dbd2ea09343516daa388524c1dc66f860ebf",
           "executable": false
         },
         {
diff --git a/tests/test_install.py b/tests/test_install.py
index d0e9260df..6fb058ad4 100644
--- a/tests/test_install.py
+++ b/tests/test_install.py
@@ -4411,6 +4411,16 @@ class WhatTheCollectionLacksSaysForWhom(unittest.TestCase):
         self.assertIn("    dark-forces (theforceengine): DARK.GOB, SOUNDS.GOB", lines)
         self.assertIn("    sonic-mania (sonicmania): Data.rsdk", lines)
         self.assertIn("(3 files)", lines[0])
+        # The page of each emulator under its group: the index alone left a
+        # search over several hundred pages.
+        self.assertEqual(lines[lines.index("    dark-forces (theforceengine): DARK.GOB, "
+                                           "SOUNDS.GOB") + 1],
+                         f"      {install.SITE_URL}emulators/theforceengine/")
+        self.assertIn(f"      {install.SITE_URL}emulators/sonicmania/", lines)
+        self.assertNotIn(f"{install.SITE_URL}emulators/\n", "\n".join(lines) + "\n")
+
+    def test_a_group_with_no_emulator_keeps_the_index(self):
+        lines = install._needed_lines([{"dest": "x.bin", "system": "x"}], "Needed")
         self.assertIn(f"{install.SITE_URL}emulators/", lines[-1])
 
 
diff --git a/wiki/installer.md b/wiki/installer.md
index cf7f3f600..71a289f59 100644
--- a/wiki/installer.md
+++ b/wiki/installer.md
@@ -507,7 +507,8 @@ BIOS folder: /userdata/bios
 426 files were not installed: the collection does not hold them, or its copy fails their check.
   Needed to start an emulator (1 file):
     capcom-cps3 (fbneo): sfiii2a.zip
-  Each emulator's page says what these files are: https://abdess.github.io/retrobios/emulators/
+      https://abdess.github.io/retrobios/emulators/fbneo/
+  Each emulator's page, linked above, says what these files are.
   Not available here: DARK.GOB, DARKWAR.RTL, DARKWAR.WAD and 76 more, game data their games read. Copy them from your own copy of the game into /userdata/bios/, /userdata/bios/Source/, /userdata/bios/base/ and 10 more folders.
   Game data: files a game or a game engine reads, of no use to the other cores.
 To check this later, run the same command with --check.