diff --git a/.github/workflows/build-linux-amd64.yml b/.github/workflows/build-linux-amd64.yml
index d84a2cf..0d03b66 100644
--- a/.github/workflows/build-linux-amd64.yml
+++ b/.github/workflows/build-linux-amd64.yml
@@ -52,10 +52,11 @@ jobs:
           apt-get update
           apt-get install -y --no-install-recommends \
             build-essential cmake ninja-build python3 python3-venv pkg-config \
-            libssl-dev curl git ca-certificates jq
+            libssl-dev curl git ca-certificates
       - name: Preflight Gitea upload (fast-fail)
         env:
           GITEA_TOKEN: ${{ secrets.RELEASE_TOKEN }}
+          ACTOR: ${{ github.actor }}
         run: |
           set -euo pipefail
           : "${GITEA_TOKEN:?GITEA_TOKEN secret is required}"
@@ -76,62 +77,21 @@ jobs:
             server="$normalized_server"
           fi
           url="$server/api/packages/$owner/generic/$pkg/$version/$name?replace=1"
-          mask() { local s="$1"; local n=${#s}; if [ "$n" -le 8 ]; then printf "*** (len=%s)" "$n"; else printf "%s***%s (len=%s)" "${s:0:4}" "${s:n-4:4}" "$n"; fi; }
-          echo "Preflight variables:"
-          echo "  server=$server"
-          echo "  owner=$owner"
-          echo "  package=$pkg"
-          echo "  version=$version"
-          echo "  url=$url"
-          echo "  token=$(mask "$GITEA_TOKEN")"
-          echo "Validating token via /api/v1/user:"
-          curl -sS -L -o /dev/null -w "  auth check -> HTTP %{http_code}\n" \
-            -H "Authorization: token ${GITEA_TOKEN}" "$server/api/v1/user" || true
-          whoami_json=$(curl -sS -L -H "Authorization: token ${GITEA_TOKEN}" "$server/api/v1/user" || echo "")
-          auth_user=$(echo "$whoami_json" | jq -r '.login // empty')
-          if [ -z "$auth_user" ]; then auth_user="$owner"; fi
-          echo "  auth user=$auth_user"
-          echo "Attempting preflight upload"
-          tmpdir_pf="$(mktemp -d)"
-          resp_headers_pf="$tmpdir_pf/headers.txt"
-          resp_body_pf="$tmpdir_pf/body.txt"
-          http_code=$(curl -sS -L -i -X PUT \
-            -H "Authorization: token ${GITEA_TOKEN}" \
+          auth_user="${ACTOR:-$owner}"
+          echo "Preflight: server=$server owner=$owner package=$pkg version=$version"
+          # Perform preflight upload using Basic auth directly
+          if curl -fS -L -X PUT \
+            -u "$auth_user:${GITEA_TOKEN}" \
             -H "Content-Type: application/octet-stream" \
-            --upload-file "$tmpfile" "$url" \
-            -D "$resp_headers_pf" -o "$resp_body_pf" -w "%{http_code}" || true)
-          echo "Preflight response HTTP code: $http_code"
-          echo "Preflight response headers:"; sed -n '1,200p' "$resp_headers_pf" | sed 's/\r$//' || true
-          if [ -s "$resp_body_pf" ]; then
-            echo "Preflight response body (first 200 bytes):"; head -c 200 "$resp_body_pf"; echo
+            --upload-file "$tmpfile" "$url" >/dev/null; then
+            echo "Preflight upload succeeded, cleaning up"
+          else
+            echo "Preflight upload failed" >&2
+            exit 1
           fi
-          case "$http_code" in
-            401|301|302|303|307|308)
-              echo "Preflight got $http_code; retrying with HTTP Basic auth (owner:token)" ;;
-            *) ;;
-          esac
-          if [ "$http_code" = "401" ] || [ "$http_code" = "301" ] || [ "$http_code" = "302" ] || [ "$http_code" = "303" ] || [ "$http_code" = "307" ] || [ "$http_code" = "308" ]; then
-            http_code=$(curl -sS -L -i -X PUT \
-              -u "$auth_user:${GITEA_TOKEN}" \
-              -H "Content-Type: application/octet-stream" \
-              --upload-file "$tmpfile" "$url" \
-              -D "$resp_headers_pf" -o "$resp_body_pf" -w "%{http_code}" || true)
-            echo "Preflight retry HTTP code: $http_code"
-            echo "Preflight retry response headers:"; sed -n '1,200p' "$resp_headers_pf" | sed 's/\r$//' || true
-            if [ -s "$resp_body_pf" ]; then
-              echo "Preflight retry body (first 200 bytes):"; head -c 200 "$resp_body_pf"; echo
-            fi
-          fi
-          case "$http_code" in
-            2*) echo "Preflight upload succeeded, cleaning up" ;;
-            *) echo "Preflight upload failed with HTTP $http_code" >&2; exit 1 ;;
-          esac
           # Cleanup the uploaded dummy package version (best effort)
           curl -sS -L -o /dev/null -w "  delete -> HTTP %{http_code}\n" \
-            -H "Authorization: token ${GITEA_TOKEN}" -X DELETE \
-            "$server/api/packages/$owner/generic/$pkg/$version" || \
-          curl -sS -L -o /dev/null -w "  delete (basic) -> HTTP %{http_code}\n" \
-            -u "$owner:${GITEA_TOKEN}" -X DELETE \
+            -u "$auth_user:${GITEA_TOKEN}" -X DELETE \
             "$server/api/packages/$owner/generic/$pkg/$version" || true
       - name: Initialize submodules
         run: |
@@ -177,6 +137,7 @@ jobs:
       - name: Upload to Gitea Packages (generic)
         env:
           GITEA_TOKEN: ${{ secrets.RELEASE_TOKEN }}
+          ACTOR: ${{ github.actor }}
         run: |
           set -euo pipefail
           : "${GITEA_TOKEN:?GITEA_TOKEN secret is required}"
@@ -214,69 +175,17 @@ jobs:
           if [ -n "$normalized_server" ]; then
             server="$normalized_server"
           fi
-          # Determine authenticated username for Basic auth fallback
-          whoami_json=$(curl -sS -L -H "Authorization: token ${GITEA_TOKEN}" "$server/api/v1/user" || echo "")
-          auth_user=$(echo "$whoami_json" | jq -r '.login // empty')
-          if [ -z "$auth_user" ]; then auth_user="$owner"; fi
+          # Use the GitHub actor as basic auth username by default
+          auth_user="${ACTOR:-$owner}"
           name="$(basename "$file")"
           url="$server/api/packages/$owner/generic/$pkg/$version/$name?replace=1"
-          # Debug helpers (avoid leaking secrets)
-          mask() { local s="$1"; local n=${#s}; if [ "$n" -le 8 ]; then printf "*** (len=%s)" "$n"; else printf "%s***%s (len=%s)" "${s:0:4}" "${s:n-4:4}" "$n"; fi; }
-          filesize=$(stat -c%s "$file" 2>/dev/null || echo "?")
-          host="$(echo "$server" | sed -E 's#^https?://([^/]+).*#\1#')"
-          echo "Derived variables:"
-          echo "  server=$server"
-          echo "  owner=$owner"
-          echo "  package=$pkg"
-          echo "  version=$version"
-          echo "  artifact=$file (size=${filesize} bytes, name=$name)"
-          echo "  url=$url"
-          echo "  token=$(mask "$GITEA_TOKEN")"
-          echo "Curl version:"; curl --version | head -n 1
-          echo "DNS for $host:"; getent hosts "$host" || true
-
-          echo "Checking API reachability (no auth):"
-          curl -sS -L -o /dev/null -w "  /api/v1/version -> HTTP %{http_code}\n" "$server/api/v1/version" || true
-
-          echo "Validating token via /api/v1/user:"
-          curl -sS -L -o /dev/null -w "  auth check -> HTTP %{http_code}\n" \
-            -H "Authorization: token ${GITEA_TOKEN}" "$server/api/v1/user" || true
+          echo "Uploading $file to $url"
           echo "  auth user=$auth_user"
 
-          echo "Uploading $file to $url"
-          # Perform upload and capture response details without exposing token
-          tmpdir="$(mktemp -d)"
-          resp_headers="$tmpdir/headers.txt"
-          resp_body="$tmpdir/body.txt"
-          http_code=$(curl -sS -L -i -X PUT \
-            -H "Authorization: token ${GITEA_TOKEN}" \
+          # Use Basic auth directly (works with package registry)
+          curl -fS -L -X PUT \
+            -u "$auth_user:${GITEA_TOKEN}" \
             -H "Content-Type: application/octet-stream" \
             --retry 2 --retry-delay 2 --max-time 300 \
-            --upload-file "$file" "$url" \
-            -D "$resp_headers" -o "$resp_body" -w "%{http_code}" || true)
-          echo "Response HTTP code: $http_code"
-          echo "Response headers:"; sed -n '1,200p' "$resp_headers" | sed 's/\r$//' || true
-          if [ -s "$resp_body" ]; then
-            echo "Response body (first 200 bytes):"; head -c 200 "$resp_body"; echo
-          fi
-
-          # If unauthorized or redirected, retry once using HTTP Basic auth (per Gitea docs)
-          if [ "$http_code" = "401" ] || [ "$http_code" = "403" ] || [ "$http_code" = "301" ] || [ "$http_code" = "302" ] || [ "$http_code" = "303" ] || [ "$http_code" = "307" ] || [ "$http_code" = "308" ]; then
-            echo "HTTP $http_code; retrying with HTTP Basic auth (auth_user:token)"
-            http_code=$(curl -sS -L -i -X PUT \
-              -u "$auth_user:${GITEA_TOKEN}" \
-              -H "Content-Type: application/octet-stream" \
-              --retry 2 --retry-delay 2 --max-time 300 \
-              --upload-file "$file" "$url" \
-              -D "$resp_headers" -o "$resp_body" -w "%{http_code}" || true)
-            echo "Retry HTTP code: $http_code"
-            echo "Retry response headers:"; sed -n '1,200p' "$resp_headers" | sed 's/\r$//' || true
-            if [ -s "$resp_body" ]; then
-              echo "Retry response body (first 200 bytes):"; head -c 200 "$resp_body"; echo
-            fi
-          fi
-
-          case "$http_code" in
-            2*) echo "Upload complete." ;;
-            *) echo "Upload failed with HTTP $http_code" >&2; exit 1 ;;
-          esac
\ No newline at end of file
+            --upload-file "$file" "$url"
+          echo "Upload complete."
\ No newline at end of file