From de84111822e8a2b0d9f7a447b07428d9cbfc3aed Mon Sep 17 00:00:00 2001
From: h7x4 <h7x4@nani.wtf>
Date: Sun, 18 Jan 2026 04:43:51 +0900
Subject: [PATCH] modules/duperemove: init

---
 flake.nix              |  1 +
 modules/duperemove.nix | 60 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 61 insertions(+)
 create mode 100644 modules/duperemove.nix

diff --git a/flake.nix b/flake.nix
index 885f952..e6adc3b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -144,6 +144,7 @@
     nixosModules = {
       machineVars = ./modules/machineVars.nix;
       socketActivation = ./modules/socketActivation.nix;
+      duperemove = ./modules/duperemove.nix;
     };
 
     homeModules = {
diff --git a/modules/duperemove.nix b/modules/duperemove.nix
new file mode 100644
index 0000000..74363e9
--- /dev/null
+++ b/modules/duperemove.nix
@@ -0,0 +1,60 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.services.duperemove;
+in
+{
+  options.services.duperemove = {
+    enable = lib.mkEnableOption "duplicate file removal timers";
+
+    directories = lib.mkOption {
+      description = "";
+      type = lib.types.attrsOf (lib.types.submodule {
+        options = {
+          enable = lib.mkEnableOption "" // {
+            default = true;
+            example = false;
+          };
+          package = lib.mkPackageOption pkgs "duperemove" { };
+          onCalendar = lib.mkOption {
+            type = with lib.types; nullOr str;
+            default = "monthly";
+            example = "Mon *-*-* 00:00:00";
+          };
+          arguments = lib.mkOption {
+            type = with lib.types; attrsOf (oneOf [ str int bool ]);
+            default = { };
+            example = { };
+          };
+        };
+      });
+      default = { };
+      example = { };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    systemd.services = {
+      "duperemove@" = {
+        description = "File duplicate remover for %i";
+        serviceConfig = {
+          Type = "oneshot";
+          ExecStart = "${lib.getExe pkgs.duperemove} /";
+
+          RootDirectory = "%i";
+          CacheDirectory = "duperemove";
+
+          PrivateInternet = true;
+          PrivateIPC = true;
+        };
+      };
+    } // (lib.mapAttrs' (n: v: {
+      name = "duperemove@${n}";
+      value = {
+        onCalendar = lib.mkIf (v.onCalendar != null) v.onCalendar;
+        serviceConfig.ExecStart = let
+          args = lib.cli.toCommandLineShellGNU { } v.arguments;
+        in "${lib.getExe v.package} ${args}";
+      };
+    }) (cfg.filterAttrs (_: d: d.enable ) cfg.directories));
+  };
+}