From 66fceb6b15442843cb62c0b54d2448ae802845dc Mon Sep 17 00:00:00 2001
From: Tim Schubert <dadada@dadada.li>
Date: Sat, 26 Jul 2025 20:12:12 +0200
Subject: [PATCH] feat(stolas): add snapper snapshots

---
 nixos/stolas/default.nix | 46 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/nixos/stolas/default.nix b/nixos/stolas/default.nix
index 5f7dfaf..4383cd0 100644
--- a/nixos/stolas/default.nix
+++ b/nixos/stolas/default.nix
@@ -118,6 +118,46 @@
       browsing = true;
     };
     tlp.enable = false;
+    snapper = {
+      cleanupInterval = "1d";
+      snapshotInterval = "hourly";
+      configs = {
+        home = {
+          SUBVOLUME = "/home/dadada";
+          ALLOW_USERS= ["dadada"];
+          TIMELINE_CREATE = true;
+          TIMELINE_CLEANUP = true;
+          TIMELINE_MIN_AGE = "1800";
+          TIMELINE_LIMIT_HOURLY = "5";
+          TIMELINE_LIMIT_DAILY = "7";
+          TIMELINE_LIMIT_WEEKLY = "0";
+          TIMELINE_LIMIT_MONTHLY = "0";
+          TIMELINE_LIMIT_YEARLY = "0";
+        };
+        var = {
+          SUBVOLUME = "/var";
+          TIMELINE_CREATE = true;
+          TIMELINE_CLEANUP = true;
+          TIMELINE_MIN_AGE = "1800";
+          TIMELINE_LIMIT_HOURLY = "5";
+          TIMELINE_LIMIT_DAILY = "7";
+          TIMELINE_LIMIT_WEEKLY = "0";
+          TIMELINE_LIMIT_MONTHLY = "0";
+          TIMELINE_LIMIT_YEARLY = "0";
+        };
+        paperless = {
+          SUBVOLUME = "/var/lib/paperless";
+          TIMELINE_CREATE = true;
+          TIMELINE_CLEANUP = true;
+          TIMELINE_MIN_AGE = "3600";
+          TIMELINE_LIMIT_HOURLY = "10";
+          TIMELINE_LIMIT_DAILY = "10";
+          TIMELINE_LIMIT_WEEKLY = "10";
+          TIMELINE_LIMIT_MONTHLY = "10";
+          TIMELINE_LIMIT_YEARLY = "10";
+        };
+      };
+    };
   };
 
   system = {
@@ -133,6 +173,12 @@
     HibernateDelaySec=1h
   '';
 
+  systemd.tmpfiles.rules = [
+    "v /var/.snapshots 0755 root root - -"
+    "v /var/paperless/.snapshots 0755 root root - -"
+    "v /home/dadada/.snapshots 0755 root root - -"
+  ];
+
   virtualisation.libvirtd.enable = true;
 
   users = {