Set up impermanence for home manager.

common/impermanence.nix

@@ -2,15 +2,17 @@
 {
   imports = [ inputs.impermanence.nixosModules.impermanence ];
 
-  environment.persistence."/persist" = {
-    directories = [ "/var/lib/nixos" ];
-    files = [
-      "/etc/machine-id"
-      "/etc/ssh/ssh_host_ed25519_key"
-      "/etc/ssh/ssh_host_ed25519_key.pub"
-      "/etc/ssh/ssh_host_rsa_key"
-      "/etc/ssh/ssh_host_rsa_key.pub"
-    ];
+  environment.persistence = {
+    "/persist" = {
+      directories = [ "/var/lib/nixos" ];
+      files = [
+        "/etc/machine-id"
+        "/etc/ssh/ssh_host_ed25519_key"
+        "/etc/ssh/ssh_host_ed25519_key.pub"
+        "/etc/ssh/ssh_host_rsa_key"
+        "/etc/ssh/ssh_host_rsa_key.pub"
+      ];
+    };
   };
 
   fileSystems."/".options = [

flake.nix

@@ -54,6 +54,7 @@
                 useUserPackages = true;
                 users.ppetru = {
                   imports = [
+                    (inputs.impermanence + "/home-manager.nix")
                     inputs.nixvim.homeManagerModules.nixvim
                     ./home
                   ];

home/default.nix

@@ -17,6 +17,16 @@ in
     shellAliases = {
       reload-home-manager-config = "home-manager switch --flake ${builtins.toString ./.}";
     };
+
+    persistence."/persist/home/ppetru" = {
+      directories = [
+        ".ssh"
+        "projects"
+      ];
+      files = [
+      ];
+      allowOther = true;
+    };
   };
 
   programs = import ./programs.nix;