From 3fbb0aca3207a79fb1be398ab5de92214caa55f9 Mon Sep 17 00:00:00 2001
From: alexion <contact@alexion.dev>
Date: Thu, 1 Oct 2026 21:50:58 -0400
Subject: [PATCH] refactor(dotfiles): remove registry replication

---
 configs/nixos/registry/stable-uid.nix |  1 -
 docs/TODO.md                          |  5 +-
 src/dotfiles/registry.nix             | 38 +++++++------
 src/dotfiles/registry/collection.nix  | 78 ---------------------------
 src/dotfiles/registry/schema.nix      |  8 ---
 5 files changed, 25 insertions(+), 105 deletions(-)
 delete mode 100644 src/dotfiles/registry/collection.nix

diff --git a/configs/nixos/registry/stable-uid.nix b/configs/nixos/registry/stable-uid.nix
index 9849533..d03f718 100644
--- a/configs/nixos/registry/stable-uid.nix
+++ b/configs/nixos/registry/stable-uid.nix
@@ -13,7 +13,6 @@ let
 in
 {
   # Next stable UID: 20005
-  replicate = true;
 
   type = lib.types.ints.positive;
 
diff --git a/docs/TODO.md b/docs/TODO.md
index ad2fe4b..55d05fd 100644
--- a/docs/TODO.md
+++ b/docs/TODO.md
@@ -127,9 +127,8 @@ Review Nix files in entrypoint order:
 - [x] `src/flake/apps.nix`
 - [x] `src/dotfiles/default.nix`
 - [x] `src/dotfiles/util.nix`
-- [ ] `src/dotfiles/registry.nix`
-- [ ] `src/dotfiles/registry/schema.nix`
-- [ ] `src/dotfiles/registry/collection.nix`
+- [x] `src/dotfiles/registry.nix`
+- [x] `src/dotfiles/registry/schema.nix`
 - [ ] `src/dotfiles/registry/validation.nix`
 - [ ] `configs/nixos/registry/address.nix`
 - [ ] `configs/nixos/registry/env-var.nix`
diff --git a/src/dotfiles/registry.nix b/src/dotfiles/registry.nix
index 5160ff0..2582ce4 100644
--- a/src/dotfiles/registry.nix
+++ b/src/dotfiles/registry.nix
@@ -12,19 +12,22 @@ let
   # NOLINT(single_use_binding)
   mkRegistry =
     path:
-    let
-      evaluated = lib.evalModules {
-        specialArgs = { inherit util; };
-        modules = [
-          (import ./registry/schema.nix { inherit lib; })
-          path
-        ];
-      };
-    in
-    {
-      inherit (evaluated.config) type replicate checks;
-    };
+    (lib.evalModules {
+      specialArgs = { inherit util; };
+      modules = [
+        (import ./registry/schema.nix { inherit lib; })
+        path
+      ];
+    }).config;
 
+  data = validate (
+    lib.mapAttrs (
+      registryName: _registry:
+      lib.mapAttrs (hostName: host: host.config.registry.${registryName}.${hostName} or { }) hosts
+    ) definitions
+  );
+
+  validate = import ./registry/validation.nix { inherit definitions lib; };
 in
 {
   types = lib.mapAttrs (_name: definition: definition.type) definitions;
@@ -43,8 +46,13 @@ in
     ) definitions;
   };
 
-  collected = import ./registry/collection.nix {
-    inherit definitions hosts lib;
-    validate = import ./registry/validation.nix { inherit definitions lib; };
+  collected = data // {
+    join =
+      host: entry:
+      lib.filterAttrs (_name: value: value != null) (
+        lib.mapAttrs (
+          registryName: _registry: (data.${registryName}.${host} or { }).${entry} or null
+        ) definitions
+      );
   };
 }
diff --git a/src/dotfiles/registry/collection.nix b/src/dotfiles/registry/collection.nix
deleted file mode 100644
index b5de52d..0000000
--- a/src/dotfiles/registry/collection.nix
+++ /dev/null
@@ -1,78 +0,0 @@
-{
-  definitions,
-  hosts,
-  lib,
-  validate,
-}:
-let
-  withOperations =
-    registry:
-    registry
-    // {
-      join = host: entry: join registry host entry;
-    };
-
-  join =
-    registry: host: entry:
-    lib.filterAttrs (_name: value: value != null) (
-      lib.mapAttrs (
-        registryName: _registry: (registry.${registryName}.${host} or { }).${entry} or null
-      ) definitions
-    );
-
-  collectData =
-    let
-      data = lib.mapAttrs (
-        registryName: registry:
-        if registry.replicate or false then
-          replicatedData registryName raw.${registryName}
-        else
-          lib.mapAttrs (hostName: host: host.config.registry.${registryName}.${hostName} or { }) hosts
-      ) definitions;
-      raw = lib.mapAttrs (registryName: _registry: rawDeclarations registryName) definitions;
-    in
-    validate data;
-
-  replicatedData =
-    registryName: raw:
-    let
-      entries = lib.mapAttrs (_entryName: entry: entry.value) (replicatedEntries registryName raw);
-    in
-    lib.mapAttrs (_hostName: _host: entries) hosts;
-
-  replicatedEntries =
-    registryName: raw:
-    let
-      entries = lib.concatLists (
-        lib.concatLists (
-          lib.mapAttrsToList (
-            _evalHost: hostDeclarations:
-            lib.mapAttrsToList (
-              hostName: declarations:
-              lib.mapAttrsToList (entryName: value: {
-                path = "registry.${registryName}.${hostName}.${entryName}";
-                inherit entryName value;
-              }) declarations
-            ) hostDeclarations
-          ) raw
-        )
-      );
-    in
-    lib.foldl' (
-      acc: entry:
-      if lib.hasAttr entry.entryName acc then
-        if acc.${entry.entryName}.value == entry.value then
-          acc
-        else
-          throw "conflicting replicated registry entry ${entry.path} does not match ${acc.${entry.entryName}.path}"
-      else
-        acc
-        // {
-          ${entry.entryName} = entry;
-        }
-    ) { } entries;
-
-  rawDeclarations =
-    registryName: lib.mapAttrs (_hostName: host: host.config.registry.${registryName} or { }) hosts;
-in
-withOperations collectData
diff --git a/src/dotfiles/registry/schema.nix b/src/dotfiles/registry/schema.nix
index e0332dd..2fcfe37 100644
--- a/src/dotfiles/registry/schema.nix
+++ b/src/dotfiles/registry/schema.nix
@@ -29,14 +29,6 @@ in
       '';
     };
 
-    replicate = lib.mkOption {
-      type = lib.types.bool;
-      default = false;
-      description = ''
-        Replicates collected entries under every host key.
-      '';
-    };
-
     checks = lib.mkOption {
       type = lib.types.listOf checkType;
       default = [ ];