add nix-tree and persist rootful docker

Author: debugloop

home/default.nix

@@ -60,6 +60,7 @@
       devenv
       inputs.agenix.packages.${pkgs.system}.default
       nh
+      nix-tree
       nixd
       nvd
       # basics

hosts/common/impermanence.nix

@@ -18,6 +18,7 @@
       "/var/lib/nixos" # uid and gid mappings
       "/var/log" # logs
       "/var/lib/rancher/k3s" # k3s cluster
+      "/var/lib/docker" # docker rootful
     ];
     files = [
       "/etc/machine-id" # important, e.g. for journald
@@ -86,6 +87,8 @@
         ".config/spotify/Users/analogbyte-user/prefs"
         # kubectl settings
         ".kube/config"
+        # other
+        ".netrc"
       ];
     };
   };