diff --git a/sys/srv/firefly.nix b/sys/srv/firefly.nix
new file mode 100644
index 0000000..db14aaf
--- /dev/null
+++ b/sys/srv/firefly.nix
@@ -0,0 +1,31 @@
+{
+  lib,
+  pkgs,
+  ...
+}:
+with lib; {
+  services = {
+    nginx = {
+      virtualHosts."firefly.posixlycorrect.com" = {
+        enableACME = true;
+        forceSSL = true;
+        extraConfig = ''
+          proxy_headers_hash_max_size 512;
+          proxy_headers_hash_bucket_size 128;
+        '';
+      };
+    };
+
+    firefly-iii = {
+      enable = true;
+      user = "firefly-iii";
+      dataDir = "/var/lib/firefly-iii";
+      enableNginx = true;
+      virtualHost = "firefly.posixlycorrect.com";
+      settings = {
+        DB_CONNECTION = "sqlite";
+        APP_ENV = "local";
+      };
+    };
+  };
+}