Use agenix for secrets

configuration.nix

@@ -1,4 +1,4 @@
-{ pkgs, secrets, phps, ... }:
+{ pkgs, phps, agenix, ... }:
 let
   fortune = pkgs.writeShellScript "cgi" ''
     echo "Content-type: text/html"
@@ -31,6 +31,8 @@ in {
 
   environment.variables.VISUAL = "code --wait";
 
+  age.identityPaths = [ "/home/nettika/.ssh/id_ed25519" ];
+
   networking = {
     hostName = "marauder";
     firewall.enable = false;
@@ -127,7 +129,6 @@ in {
     php
 
     # Command line
-    git-crypt
     htop
     jq
 
@@ -139,6 +140,7 @@ in {
     mullvad-vpn
     qbittorrent
     system-config-printer
+    agenix.packages.${system}.default
   ];
 
   programs.steam = {
@@ -205,7 +207,7 @@ in {
 
   services.zerotierone = {
     enable = true;
-    joinNetworks = secrets.zerotier.networks;
+    joinNetworks = [ "8056c2e21c0b1a53" ];
   };
 
   services.mullvad-vpn = {