diff --git a/src/DiffRecipeVersionsCommand.php b/src/DiffRecipeVersionsCommand.php
index 669bb2d..82b20ba 100644
--- a/src/DiffRecipeVersionsCommand.php
+++ b/src/DiffRecipeVersionsCommand.php
@@ -30,13 +30,13 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         $packages = [];
         $requires = [];
 
-        while (false !== $package = fgets(STDIN)) {
+        while (false !== $package = fgets(\STDIN)) {
             $package = substr($package, 0, -1);
 
-            $versions = scandir($package, SCANDIR_SORT_NONE);
+            $versions = scandir($package, \SCANDIR_SORT_NONE);
             usort($versions, 'version_compare');
 
-            if (!$versions = array_slice($versions, 2)) {
+            if (!$versions = \array_slice($versions, 2)) {
                 continue;
             }
 
@@ -102,7 +102,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
             foreach ($versions as $version) {
                 $diff = shell_exec(sprintf('LC_ALL=C git diff --color=never --no-index %s/%s %1$s/%s', $package, $previousVersion, $version));
 
-                $output->writeln("<details>");
+                $output->writeln('<details>');
                 $output->writeln(sprintf("<summary>%s <em>vs</em> %s</summary>\n", $previousVersion, $version));
                 $output->writeln("```diff\n$diff```");
                 $output->writeln("\n</details>\n");
diff --git a/src/GenerateFlexEndpointCommand.php b/src/GenerateFlexEndpointCommand.php
index cb47e0e..84be3c7 100644
--- a/src/GenerateFlexEndpointCommand.php
+++ b/src/GenerateFlexEndpointCommand.php
@@ -14,7 +14,6 @@
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\OutputInterface;
-use Symfony\Component\HttpClient\HttpClient;
 
 #[AsCommand(name: 'generate:flex-endpoint', description: 'Generates the json files required by Flex')]
 class GenerateFlexEndpointCommand extends Command
@@ -56,7 +55,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 
         // stdin usually generated by `git ls-tree HEAD */*/*`
 
-        while (false !== $line = fgets(STDIN)) {
+        while (false !== $line = fgets(\STDIN)) {
             [$tree, $package] = explode("\t", trim($line));
             [,, $tree] = explode(' ', $tree);
 
@@ -98,8 +97,9 @@ protected function execute(InputInterface $input, OutputInterface $output): int
                 'repository' => sprintf('github.com/%s', $repository),
                 'origin_template' => sprintf('{package}:{version}@github.com/%s:%s', $repository, $sourceBranch),
                 'recipe_template' => sprintf('https://raw.githubusercontent.com/%s/%s/{package_dotted}.{version}.json', $repository, $flexBranch),
+                'archived_recipes_template' => sprintf('https://raw.githubusercontent.com/%s/%s/archived/{package_dotted}/{ref}.json', $repository, $flexBranch),
             ],
-        ], JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES)."\n");
+        ], \JSON_PRETTY_PRINT | \JSON_UNESCAPED_SLASHES)."\n");
 
         return 0;
     }
@@ -138,15 +138,26 @@ private function generatePackageJson(string $package, string $version, array $ma
 
         ksort($files, \SORT_NATURAL);
 
-        file_put_contents(sprintf('%s/%s.%s.json', $outputDir, str_replace('/', '.', $package), $version), json_encode([
-            'manifests' => [
-                $package => [
-                    'manifest' => $manifest,
-                    'files' => $files,
-                    'ref' => $tree,
+        $contents = json_encode(
+            [
+                'manifests' => [
+                    $package => [
+                        'manifest' => $manifest,
+                        'files' => $files,
+                        'ref' => $tree,
+                    ],
                 ],
             ],
-        ], JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES)."\n");
+            \JSON_PRETTY_PRINT | \JSON_UNESCAPED_SLASHES
+        )."\n";
+        file_put_contents(sprintf('%s/%s.%s.json', $outputDir, str_replace('/', '.', $package), $version), $contents);
+
+        // save another version for the archives
+        $archivedPath = sprintf('%s/archived/%s.%s/%s.json', $outputDir, str_replace('/', '.', $package), $version, $tree);
+        if (!file_exists(\dirname($archivedPath))) {
+            mkdir(\dirname($archivedPath), 0777, true);
+        }
+        file_put_contents($archivedPath, $contents);
 
         return true;
     }
diff --git a/src/LintYamlCommand.php b/src/LintYamlCommand.php
index 2061042..fa59962 100644
--- a/src/LintYamlCommand.php
+++ b/src/LintYamlCommand.php
@@ -24,7 +24,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $exit = 0;
 
-        while (false !== $file = fgets(STDIN)) {
+        while (false !== $file = fgets(\STDIN)) {
             $file = substr($file, 0, -1);
             $this->validate($file, $output, $exit);
         }
diff --git a/src/ListUnpatchedPackagesCommand.php b/src/ListUnpatchedPackagesCommand.php
index 2afb4d9..354a800 100644
--- a/src/ListUnpatchedPackagesCommand.php
+++ b/src/ListUnpatchedPackagesCommand.php
@@ -34,7 +34,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         $client = HttpClient::create();
         $diff = $client->request('GET', $data['pull_request']['diff_url'], ['auth_bearer' => $input->getArgument('github_token')])->getContent();
 
-        preg_match_all('{^diff --git a/(([^/]++/[^/]++)/.*) b/\1$}m', $diff, $matches, PREG_PATTERN_ORDER);
+        preg_match_all('{^diff --git a/(([^/]++/[^/]++)/.*) b/\1$}m', $diff, $matches, \PREG_PATTERN_ORDER);
 
         $patchedPackages = array_flip($matches[2]);