diff --git a/scripts/upload_artifacts.py b/scripts/upload_artifacts.py
index 14ec080..3cabb82 100644
--- a/scripts/upload_artifacts.py
+++ b/scripts/upload_artifacts.py
@@ -1,98 +1,71 @@
 #!/usr/bin/env python3
-"""
-Upload build outputs as Gitea Actions artifacts using the Actions Runtime API.
+"""Upload artifact to Gitea Actions runtime, falling back to local save."""
 
-This replaces GitHub-only actions/upload-artifact with a Gitea-native approach.
-Uses ACTIONS_RUNTIME_URL and ACTIONS_RUNTIME_TOKEN provided by Gitea's
-act_runner to upload artifacts directly to the pipeline service.
-
-Usage:
-  python3 scripts/upload_artifacts.py <artifact_name> <path_glob1> [path_glob2 ...]
-
-Environment (set by Gitea act_runner >= 1.21):
-  ACTIONS_RUNTIME_URL     — Pipeline service base URL (e.g. http://localhost:35278/1)
-  ACTIONS_RUNTIME_TOKEN   — Bearer token for the pipeline service
-
-When the runtime environment is not available (e.g. local testing),
-artifacts are saved to ./artifacts/<name>.zip as a fallback.
-"""
-import glob
-import io
+import json
 import os
 import sys
-import urllib.error
 import urllib.request
-import zipfile
+import urllib.error
 
-_RUNTIME_UPLOADED = False
+HERE = os.path.dirname(os.path.abspath(__file__))
+ARTIFACTS_DIR = os.path.join(os.path.dirname(HERE), "artifacts")
 
 
-def _upload_via_runtime(name, payload, runtime_url, runtime_token):
-    url = "{}/_apis/pipeline/artifacts/{}".format(runtime_url.rstrip("/"), name)
+def _upload_via_runtime(artifact_name, payload, runtime_url, runtime_token):
+    """Upload via Gitea Actions runtime API."""
+    url = f"{runtime_url}/_apis/artifact/build/{artifact_name}/{artifact_name}/upload"
     headers = {
-        "Authorization": "Bearer " + runtime_token,
+        "Authorization": f"Bearer {runtime_token}",
         "Content-Type": "application/octet-stream",
-        "Content-Range": "bytes 0-{}/{}".format(len(payload) - 1, len(payload)),
-        "x-tfs-filelength": str(len(payload)),
+        "Accept": "*/*",
     }
     req = urllib.request.Request(url, data=payload, headers=headers, method="PUT")
-    try:
-        with urllib.request.urlopen(req) as resp:
-            msg = "[upload-artifact] Uploaded '{}' ({} bytes) to Gitea runtime — HTTP {}"
-            print(msg.format(name, len(payload), resp.status))
-            global _RUNTIME_UPLOADED
-            _RUNTIME_UPLOADED = True
-            return True
-    except urllib.error.HTTPError as e:
-        body = e.read().decode()[:300] if e.fp else ""
-        print("[upload-artifact] Runtime upload failed: HTTP {} — {}".format(e.code, body))
-        return False
+    with urllib.request.urlopen(req) as resp:
+        return resp.status in (200, 201, 204)
 
 
-def _save_locally(name, payload):
-    dest = os.path.join("artifacts", "{}.zip".format(name))
-    os.makedirs(os.path.dirname(dest) or ".", exist_ok=True)
+def _save_locally(artifact_name, payload):
+    """Fallback: save to local filesystem."""
+    os.makedirs(ARTIFACTS_DIR, exist_ok=True)
+    dest = os.path.join(ARTIFACTS_DIR, f"{artifact_name}.zip")
     with open(dest, "wb") as f:
         f.write(payload)
-    print("[upload-artifact] Saved artifact to {} ({} bytes)".format(dest, len(payload)))
+    return dest
 
 
 def main():
     if len(sys.argv) < 3:
-        print("Usage: {} <artifact_name> <path_glob> [path_glob ...]".format(sys.argv[0]))
+        print(f"Usage: {sys.argv[0]} <artifact_name> <file_path>")
         sys.exit(1)
 
     artifact_name = sys.argv[1]
-    patterns = sys.argv[2:]
+    file_path = sys.argv[2]
 
-    files = []
-    for pattern in patterns:
-        matched = glob.glob(pattern, recursive=True)
-        files.extend(matched)
-    files = sorted(set(f for f in files if os.path.isfile(f)))
+    if not os.path.isfile(file_path):
+        print(f"[upload-artifact] ERROR: file not found: {file_path}")
+        sys.exit(1)
 
-    if not files:
-        print("[upload-artifact] No files found for pattern(s): {}".format(patterns))
-        return
+    with open(file_path, "rb") as f:
+        payload = f.read()
 
-    buf = io.BytesIO()
-    with zipfile.ZipFile(buf, "w", zipfile.ZIP_DEFLATED) as zf:
-        for f in files:
-            zf.write(f, os.path.relpath(f))
-    payload = buf.getvalue()
-
-    runtime_url = os.environ.get("ACTIONS_RUNTIME_URL", "").rstrip("/")
+    runtime_url = os.environ.get("ACTIONS_RUNTIME_URL", "")
     runtime_token = os.environ.get("ACTIONS_RUNTIME_TOKEN", "")
 
     if runtime_url and runtime_token:
-        ok = _upload_via_runtime(artifact_name, payload, runtime_url, runtime_token)
-        if not ok:
-            _save_locally(artifact_name, payload)
-    else:
-        print("[upload-artifact] ACTIONS_RUNTIME_URL/TOKEN not available — saving locally.")
-        _save_locally(artifact_name, payload)
+        try:
+            ok = _upload_via_runtime(artifact_name, payload, runtime_url, runtime_token)
+            if ok:
+                print(f"[upload-artifact] Uploaded {file_path} ({len(payload)} bytes)")
+                return
+        except urllib.error.URLError as e:
+            print(f"[upload-artifact] Runtime upload failed (URLError): {e.reason}")
+        except Exception as e:
+            print(f"[upload-artifact] Runtime upload failed: {e}")
 
-    print("[upload-artifact] Done — {} file(s) in '{}'.".format(len(files), artifact_name))
+    # Fallback
+    dest = _save_locally(artifact_name, payload)
+    print(f"[upload-artifact] Saved artifact to {dest} ({len(payload)} bytes)")
+    print("[upload-artifact] Done — 1 file(s) in '{}'.".format(artifact_name))
 
 
 if __name__ == "__main__":