diff --git a/flake.nix b/flake.nix
index 30fb5cb..fe7eefa 100644
--- a/flake.nix
+++ b/flake.nix
@@ -61,6 +61,7 @@
             };
             packages.think = pkgs.think-gtcm;
             packages.think-be = pkgs.think-backend-gtcm;
+            packages.file-uploader = pkgs.gtcm-file-uploader;
           };
       }
     );
diff --git a/machines/ramus/think-greater-chiangmai.nix b/machines/ramus/think-greater-chiangmai.nix
index 9f1ac58..8611131 100644
--- a/machines/ramus/think-greater-chiangmai.nix
+++ b/machines/ramus/think-greater-chiangmai.nix
@@ -21,6 +21,8 @@ let
     R2_BUCKET = config.clan.core.vars.generators.greaterchiangmai-s3.files.bucket.value;
     R2_ENDPOINT = config.clan.core.vars.generators.greaterchiangmai-s3.files.endpoint.value;
 
+    R2_BUCKET_NAME = R2_BUCKET;
+
     LOG_CHANNEL = "stack";
     LOG_LEVEL = "debug";
 
diff --git a/modules/nixos/think-backend-gtcm.nix b/modules/nixos/think-backend-gtcm.nix
index e83b5ae..e9e97e5 100644
--- a/modules/nixos/think-backend-gtcm.nix
+++ b/modules/nixos/think-backend-gtcm.nix
@@ -7,6 +7,30 @@
 let
   cfg = config.services.think-backend-greaterchiangmai;
   think-backend-gtcm = pkgs.think-backend-gtcm.override { dataDir = cfg.dataDir; };
+  file-uploader = pkgs.gtcm-file-uploader.override { dataDir = cfg.dataDir; };
+
+  nginxNodeProxyConfig = ''
+    proxy_pass http://127.0.0.1:3000;
+
+    proxy_set_header X-Real-IP $remote_addr;
+    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_set_header Host $host;
+    proxy_set_header x-webobjects-server-protocol HTTP/1.0;
+    proxy_set_header x-webobjects-remote-host 127.0.0.1;
+    proxy_set_header x-webobjects-server-port $server_port;
+    proxy_set_header x-webobjects-server-name $server_name;
+    proxy_set_header x-webobjects-server-url $scheme://$host;
+    proxy_connect_timeout 90;
+    proxy_send_timeout 90;
+    proxy_read_timeout 90;
+    proxy_buffer_size 64k;
+    proxy_buffers 8 64k;
+    proxy_busy_buffers_size 64k;
+    proxy_temp_file_write_size 64k;
+    client_max_body_size 50m;
+    client_body_buffer_size 128k;
+  '';
+
   defaultUser = "gtcm";
   defaultGroup = "gtcm";
 
@@ -142,6 +166,19 @@ in
       '';
     };
 
+    systemd.services.gtcm-file-uploader = {
+      description = "File upload service for think-backend.greaterchiangmai.com";
+      requiredBy = [ "phpfpm-think-backend-gtcm.service" ];
+      before = [ "phpfpm-think-backend-gtcm.service" ];
+      serviceConfig = {
+        User = cfg.user;
+        WorkingDirectory = "${file-uploader}";
+        ExecStart = "${lib.getExe pkgs.nodejs_20} ${file-uploader}/src/be/index.js";
+        Restart = "on-failure";
+      };
+      path = [ pkgs.nodejs_20 ];
+    };
+
     environment.systemPackages = [
       artisan-be
     ];
@@ -244,6 +281,8 @@ in
       "d ${cfg.dataDir}/storage/framework/views    0700 ${cfg.user} ${cfg.group} - -"
       "d ${cfg.dataDir}/storage/logs               0700 ${cfg.user} ${cfg.group} - -"
       "d ${cfg.dataDir}/storage/uploads            0700 ${cfg.user} ${cfg.group} - -"
+
+      "d ${cfg.dataDir}/gtcm-file-uploader/uploads      0700 ${cfg.user} ${cfg.group} - -"
     ];
 
     networking.firewall.allowedTCPPorts = [
@@ -271,6 +310,12 @@ in
           "~ \\.(js|css|gif|png|ico|jpg|jpeg)$" = {
             extraConfig = "expires 365d;";
           };
+          "^~ /initiate-multipart-upload".extraConfig = nginxNodeProxyConfig;
+          "^~ /get-presigned-url".extraConfig = nginxNodeProxyConfig;
+          "^~ /complete-multipart-upload".extraConfig = nginxNodeProxyConfig;
+          "^~ /generate-presigned-url".extraConfig = nginxNodeProxyConfig;
+          "^~ /enable-bucket-cors".extraConfig = nginxNodeProxyConfig;
+          "^~ /upload".extraConfig = nginxNodeProxyConfig;
         };
       };
     };
diff --git a/pkgs/gtcm-file-uploader.nix b/pkgs/gtcm-file-uploader.nix
new file mode 100644
index 0000000..5c1a955
--- /dev/null
+++ b/pkgs/gtcm-file-uploader.nix
@@ -0,0 +1,40 @@
+{
+  fetchgit,
+  buildNpmPackage,
+  pkgs,
+  dataDir ? "/var/lib/gtcm-file-uploader",
+}:
+let
+  repoSrc = fetchgit {
+    url = "https://git.b4l.co.th/newedge/think-greaterchiangmai";
+    rev = "6f8c8d7dfaf5a0c1eb2077de1d6fb35ceaf3d4ec";
+    hash = "sha256-2mCdn8xGjWZrANclctGTmxQhkNc43VzlzMTVwVIFJcM=";
+  };
+  src = "${repoSrc}/upload-large-file";
+in
+buildNpmPackage {
+  pname = "gtcm-file-uploader";
+  version = "1.0.0";
+
+  nativeBuildInputs = with pkgs; [
+    nodejs_20
+    breakpointHook
+  ];
+
+  inherit src;
+
+  npmDepsHash = "sha256-JEp2F1CQfuV9fSYZRdRO+BiOE9dy1ReK6doJcqCuxu4=";
+
+  buildPhase = ''
+    npm install
+  '';
+
+  installPhase = ''
+    runHook preInstall
+    mkdir -p $out
+    cp -r * $out
+    ln -s ${dataDir}/.env $out/.env
+    ln -s ${dataDir}/gtcm-file-uploader/uploads $out/src/be/uploads
+    runHook postInstall
+  '';
+}
diff --git a/pkgs/overlay.nix b/pkgs/overlay.nix
index d327dd3..03257f0 100644
--- a/pkgs/overlay.nix
+++ b/pkgs/overlay.nix
@@ -1,4 +1,5 @@
 final: prev: {
   think-gtcm = final.callPackage ./think-gtcm.nix { };
   think-backend-gtcm = final.callPackage ./think-backend-gtcm.nix { php = final.php83; };
+  gtcm-file-uploader = final.callPackage ./gtcm-file-uploader.nix { };
 }
diff --git a/vars/per-machine/ramus/greaterchiangmai-s3/endpoint/value b/vars/per-machine/ramus/greaterchiangmai-s3/endpoint/value
index f79b7e2..1b0a47b 100644
--- a/vars/per-machine/ramus/greaterchiangmai-s3/endpoint/value
+++ b/vars/per-machine/ramus/greaterchiangmai-s3/endpoint/value
@@ -1 +1 @@
-fsn1.your-objectstorage.com
\ No newline at end of file
+https://fsn1.your-objectstorage.com
\ No newline at end of file