diff --git a/src/chsrc-main.c b/src/chsrc-main.c
index 2d15f61d..15a25ed3 100644
--- a/src/chsrc-main.c
+++ b/src/chsrc-main.c
@@ -91,6 +91,7 @@ chsrc_register_chefs_and_sauciers ()
   chef_register_contributor ("@NewbieXvwu",     "Mingzhe Jiang",   "newbiexvwu@gmail.com",          NULL);
   chef_register_contributor ("@daocoder",       "daocoder",       "daocoder@foxmail.com",           NULL);
   chef_register_contributor ("@JIAFALSEDREAM",  "假发",           "jiafa@hello-happy.world",         NULL);
+  chef_register_contributor ("@yayoinoyume",    "YAYOI27",        "yayoi27@yayoi.uk",               NULL);
 
   /**
    * AI贡献者：
diff --git a/src/recipe/menu.c b/src/recipe/menu.c
index b61092df..c92b9caf 100644
--- a/src/recipe/menu.c
+++ b/src/recipe/menu.c
@@ -4,6 +4,7 @@
  * File Authors   : @ccmywish
  * Contributors   : @Mikachu2333
  *                | @BingChunMoLi
+ *                | @yayoinoyume
  *                |
  * Created On     : <2023-09-01>
  * Major Revision :      6
@@ -86,6 +87,7 @@
 #include "os/YUM/Anolis-OS.c"
 
 #include "os/pacman/Arch-Linux.c"
+#include "os/pacman/Omarchy.c"
 #include "os/pacman/Manjaro-Linux.c"
 #include "os/pacman/MSYS2.c"
 
@@ -209,6 +211,7 @@ chsrc_init_menu ()
   add (arch);
   add (archlinuxcn);
   add (manjaro);
+  add (omarchy);
   add (gentoo);
   add (rockylinux);
   add (almalinux);
diff --git a/src/recipe/os/pacman/Omarchy.c b/src/recipe/os/pacman/Omarchy.c
new file mode 100644
index 00000000..8e6f5d8c
--- /dev/null
+++ b/src/recipe/os/pacman/Omarchy.c
@@ -0,0 +1,111 @@
+/** ------------------------------------------------------------
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ * ------------------------------------------------------------*/
+
+#define OS_Pacman_Omarchy_Conf "/etc/pacman.conf"
+
+
+/** ------------------------------------------------------------
+ * omarchy dish (换 OPR 专属仓库)
+ *
+ * Omarchy 的 Arch Linux 主仓库源与 arch 完全一致，请额外使用
+ * `chsrc set arch` 来更换；本 dish 只负责 [omarchy] 段 (OPR)。
+ * ------------------------------------------------------------*/
+
+def_dish(os_omarchy, "omarchy");
+
+void
+os_omarchy_prepare ()
+{
+  chef_prep_this_dish (os_omarchy, gsr);
+
+  chef_set_recipe_created_on   (this, "2026-09-04");
+  chef_set_recipe_last_updated (this, "2026-09-06");
+
+  chef_set_chefs (this, 1, "@yayoinoyume");
+  chef_set_sauciers (this, 0);
+
+  chef_set_os_scope (this);
+  chef_deny_english(this);
+  chef_allow_user_define(this);
+
+  chef_set_note (this,
+    "Omarchy 是基于 Arch Linux 开发的发行版，除官方专属软件包仓库 (OPR) 外，其余换源与 Arch 保持一致。"
+    "本菜品仅更换 OPR 源；Arch Linux 主仓库请另行 chsrc set arch，恢复官方 OPR 源请 chsrc reset omarchy。"
+    "注意: omarchy-refresh-pacman 更新脚本会覆盖此配置，换源后若被还原，请重新执行",
+    "Omarchy is an Arch Linux-based distro; apart from its official package repository (OPR), source switching is the same as Arch. "
+    "This dish only switches the OPR source; use chsrc set arch for the Arch Linux main source, and chsrc reset omarchy to restore the official OPR source. "
+    "Note: omarchy-refresh-pacman may overwrite this configuration; rerun if it reverts");
+
+  def_sources_begin()
+  {&UpstreamProvider, "https://pkgs.omarchy.org/stable/$arch", DelegateToUpstream}
+  def_sources_end()
+}
+
+
+void
+os_omarchy_getsrc (char *option)
+{
+  chsrc_view_file (OS_Pacman_Omarchy_Conf);
+}
+
+
+/**
+ * @consult
+ *   1. https://github.com/basecamp/omarchy 官方 pacman.conf 模板 (仅 x86_64)
+ */
+void
+os_omarchy_setsrc (char *option)
+{
+  /* Omarchy 官方仅发布 x86_64 仓库，非 x86_64 无 OPR */
+  char *arch = chsrc_get_cpuarch ();
+  if (strncmp (arch, "x86_64", 6) != 0)
+    {
+      chsrc_error ("Omarchy 目前仅支持 x86_64 架构");
+      exit (Exit_Unsupported);
+    }
+
+  chsrc_ensure_root ();
+
+  chsrc_use_this_source (os_omarchy);
+
+  chsrc_backup (OS_Pacman_Omarchy_Conf);
+
+  /* 上游默认源基于 stable 通道，edge 通道用户换源后将切换到 stable */
+  bool is_edge = xy_run_get_status ("grep -q '^Server = https://pkgs.omarchy.org/edge/' " OS_Pacman_Omarchy_Conf) == 0;
+  if (is_edge && !source_is_userdefine (&source))
+    chsrc_warn2 ("检测到当前使用 edge 通道，上游默认源基于 stable 通道，继续执行将切换到 stable");
+
+  /* 幂等: 替换 [omarchy] 段的 Server 行为所选源；已是所选源则跳过 */
+  char *exists_cmd = xy_strcat (3, "grep -qxF 'Server = ", source.url, "' " OS_Pacman_Omarchy_Conf);
+  if (xy_run_get_status (exists_cmd) == 0)
+    {
+      chsrc_debug ("recipe", "所选 Server 行已存在，跳过 pacman.conf 修改");
+    }
+  else
+    {
+      char *sed_cmd = xy_strcat (4, "sed -i 's|^Server = https://pkgs.omarchy.org/.*|Server = ",
+                                  source.url, "|' ", OS_Pacman_Omarchy_Conf);
+      chsrc_run (sed_cmd, RunOpt_Default);
+    }
+
+  /* 清理本地陈旧 omarchy.db 缓存: 残留旧 sig 会导致 -Syy 验签失败 */
+  chsrc_run ("rm -f /var/lib/pacman/sync/omarchy.db /var/lib/pacman/sync/omarchy.db.sig", RunOpt_Default);
+
+  chsrc_run ("pacman -Syy", RunOpt_No_Last_New_Line);
+
+  chsrc_determine_chgtype (ChgType_Auto);
+  chsrc_conclude (&source);
+
+  chsrc_note2 (ENGLISH
+    ? "This dish only switches the OPR source; use chsrc set arch for the Arch Linux main source."
+    : "本菜品仅更换 OPR 源；Arch Linux 主仓库请另行 chsrc set arch。");
+}
+
+
+void
+os_omarchy_resetsrc (char *option)
+{
+  /* reset 模式下 chsrc_use_this_source 返回官方源，即恢复官方 stable 通道 */
+  os_omarchy_setsrc (option);
+}