Make nerd example config use HTTP REST API for reloading

docs/extension/nerd.md

@@ -15,19 +15,10 @@ It downloads the JSON file, copies it to the location FieldPOC expects the exten
 systemd.services.fieldpoc-nerd = {
 wantedBy = ["multi-user.target"];
 startAt = "*-*-* *:*:00";
-script = let
-  reloadScript = pkgs.writeText "reload" ''
-    spawn ${pkgs.inetutils}/bin/telnet localhost 9437
-    expect "> "
-    send "reload\n"
-    expect "> "
-    send "exit\n"
-    expect "disconnecting"
-  '';
-in ''
+script = ''
   ${pkgs.curl}/bin/curl https://nerd.example.com/export.json\?event=1 > /etc/fieldpoc/extensions.json
 
-  ${pkgs.expect}/bin/expect ${reloadScript}
+  ${pkgs.curl}/bin/curl --json '{}' http://127.0.0.1:9437/reload
 '';
 };
 ```