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diff --git a/modules/sops.nix b/modules/sops.nix
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+{ config, ... }:
+
+# sops-nix configuration.
+# Secrets are encrypted to two recipients:
+#   1. Your personal age key (derived from your SSH ed25519 key via ssh-to-age)
+#   2. This host's age key (derived from /etc/ssh/ssh_host_ed25519_key at boot)
+#
+# The host key path below is where sops-nix looks by default when
+# services.openssh generates the host key.
+{
+  sops = {
+    defaultSopsFile = ../../secrets/secrets.yaml;
+    defaultSopsFormat = "yaml";
+
+    # Derive the machine's age key from its SSH ed25519 host key.
+    # This key is auto-generated by OpenSSH on first boot and stays stable.
+    age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
+
+    secrets = {
+      # Miniflux admin credentials file (ADMIN_USERNAME=... ADMIN_PASSWORD=...)
+      "miniflux/admin" = {
+        owner = "miniflux";
+        group = "miniflux";
+        mode = "0400";
+      };
+
+      # AdGuard Home admin password bcrypt hash
+      # Format: plain string containing only the bcrypt hash
+      "adguard/password_hash" = {
+        owner = "adguardhome";
+        group = "adguardhome";
+        mode = "0400";
+      };
+    };
+  };
+}