zaphyra's git: nixfiles

add `impermanence` support in some places

diff --git a/config/nixos/modules/presets/katja/enable.nix b/config/nixos/modules/presets/katja/enable.nix
@@ -59,6 +59,7 @@ in
       };
     };
 
+    modules.filesystem.impermanence.system.dirs = [ "/var/lib/acme" ];
     security.acme = {
       acceptTerms = true;
       defaults = {

diff --git a/config/nixos/modules/services/gotosocial.nix b/config/nixos/modules/services/gotosocial.nix
@@ -92,6 +92,8 @@ in
         }
       ];
 
+      modules.filesystem.impermanence.system.dirs = [ cfg.stateDir ];
+
       modules.services.gotosocial.settings = {
         # Defaults
         user = lib.mkDefault cfg.user;

diff --git a/config/nixos/modules/services/vnstat.nix b/config/nixos/modules/services/vnstat.nix
@@ -27,6 +27,8 @@ in
   config = lib.mkIf cfg.enable {
     services.vnstat.enable = true;
 
+    modules.filesystem.impermanence.system.dirs = [ "/var/lib/vnstat" ];
+
     services.nginx.virtualHosts."${config.networking.fqdn}" = lib.mkIf cfg.vnstati.enable {
       locations."/vnstat/" = {
         alias = "/var/run/vnstati/";