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diff --git a/archived/projt-launcher/ci/eval/compare/maintainers.nix b/archived/projt-launcher/ci/eval/compare/maintainers.nix
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+# =============================================================================
+# ProjT Launcher - Maintainer Assignment Module
+# =============================================================================
+# Maps changed files to their maintainers based on OWNERS file.
+# Used by CI to automatically request reviews from relevant maintainers.
+# =============================================================================
+
+{
+  lib,
+}:
+
+{
+  # List of changed file paths
+  changedPaths ? [ ],
+}:
+
+let
+  # =============================================================================
+  # Maintainer Definitions
+  # =============================================================================
+
+  # Project maintainers (GitHub usernames)
+  maintainers = {
+    YongDo-Hyun = {
+      github = "YongDo-Hyun";
+      name = "YongDo Hyun";
+      areas = [
+        "core"
+        "ui"
+        "minecraft"
+        "build"
+        "ci"
+        "all"
+      ];
+    };
+    grxtor = {
+      github = "grxtor";
+      name = "GRXTOR";
+      areas = [
+        "core"
+        "ui"
+        "minecraft"
+        "build"
+        "ci"
+        "all"
+      ];
+    };
+  };
+
+  # =============================================================================
+  # File to Area Mapping
+  # =============================================================================
+
+  # Map file paths to areas of responsibility
+  getArea =
+    filePath:
+    if lib.hasPrefix "launcher/ui/" filePath then
+      "ui"
+    else if lib.hasPrefix "launcher/qtquick/" filePath then
+      "ui"
+    else if lib.hasPrefix "launcher/minecraft/" filePath then
+      "minecraft"
+    else if lib.hasPrefix "launcher/modplatform/" filePath then
+      "modplatform"
+    else if lib.hasPrefix "launcher/java/" filePath then
+      "java"
+    else if lib.hasPrefix "launcher/net/" filePath then
+      "networking"
+    else if lib.hasPrefix "launcher/" filePath then
+      "core"
+    else if lib.hasPrefix "cmake/" filePath then
+      "build"
+    else if lib.hasSuffix "CMakeLists.txt" filePath then
+      "build"
+    else if lib.hasPrefix ".github/" filePath then
+      "ci"
+    else if lib.hasPrefix "ci/" filePath then
+      "ci"
+    else if lib.hasPrefix "translations/" filePath then
+      "translations"
+    else if lib.hasPrefix "docs/" filePath then
+      "documentation"
+    else
+      "other";
+
+  # =============================================================================
+  # Maintainer Resolution
+  # =============================================================================
+
+  # Get maintainers for a specific area
+  getMaintainersForArea =
+    area:
+    lib.filter (m: builtins.elem area m.areas || builtins.elem "all" m.areas) (
+      builtins.attrValues maintainers
+    );
+
+  # Get maintainers for a file
+  getMaintainersForFile = filePath: getMaintainersForArea (getArea filePath);
+
+  # Get all affected maintainers for changed files
+  getAffectedMaintainers =
+    changedFiles:
+    let
+      allMaintainers = lib.concatMap getMaintainersForFile changedFiles;
+      uniqueByGithub = lib.groupBy (m: m.github) allMaintainers;
+    in
+    lib.mapAttrsToList (_: ms: builtins.head ms) uniqueByGithub;
+
+  # =============================================================================
+  # Change Analysis
+  # =============================================================================
+
+  # Group changed files by area
+  filesByArea = lib.groupBy getArea changedPaths;
+
+  # Get affected areas
+  affectedAreas = builtins.attrNames filesByArea;
+
+  # Get maintainers who should be notified
+  maintainersToNotify = getAffectedMaintainers changedPaths;
+
+in
+{
+  # List of maintainer GitHub usernames to notify
+  maintainers = map (m: m.github) maintainersToNotify;
+
+  # Areas affected by changes
+  areas = affectedAreas;
+
+  # Detailed mapping of areas to files
+  inherit filesByArea;
+
+  # Full maintainer info
+  maintainerDetails = maintainersToNotify;
+
+  # Summary for CI output
+  summary = {
+    totalFiles = builtins.length changedPaths;
+    inherit affectedAreas;
+    maintainers = map (m: m.github) maintainersToNotify;
+  };
+}