diff --git a/.gitea/workflows/convert.yaml b/.gitea/workflows/convert.yaml
new file mode 100644
index 0000000..898a979
--- /dev/null
+++ b/.gitea/workflows/convert.yaml
@@ -0,0 +1,55 @@
+name: Convert BeST addresses
+run-name: Convert BeST addresses to csv (${{ gitea.ref_name }})
+
+on:
+  push:
+    branches:
+      - '**'
+    tags:
+      - '**'
+  workflow_dispatch:
+
+env:
+  GPKG: ca0fd5c0-8146-11e9-9012-482ae30f98d9_geopackage+sqlite3_3812.gpkg
+  SOURCE_URL: https://ac.ngi.be/remoteclient-open/GeoBePartners-open/BOSA/ca0fd5c0-8146-11e9-9012-482ae30f98d9_geopackage+sqlite3_3812.zip
+  SELECT: SELECT shape AS geom, id, best_id, coalesce(streetname_fr, streetname_nl, streetname_de) AS streetname, postal_info_objectid, municipality_objectid, COALESCE(municipality_fr, municipality_nl, municipality_de) AS municipality, housenumber, boxnumber
+
+jobs:
+  convert:
+    runs-on: ubuntu-latest
+    steps:
+      - name: install dependencies
+        run: |
+          apt-get update
+          DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends gdal-bin unzip curl ca-certificates
+          ogr2ogr --version
+
+      - name: download
+        run: curl --fail --location --silent --show-error --output bestaddresses.zip "$SOURCE_URL"
+
+      - name: convert
+        run: |
+          set -eu
+          unzip -o bestaddresses.zip
+          rm bestaddresses.zip
+          ogrinfo "$GPKG" -sql "CREATE INDEX idx_postal_code ON addresses_complete (postal_info_objectid) WHERE status NOT LIKE 'retired'"
+          ogr2ogr -sql "select St_Centroid(St_Envelope(St_Collect(shape))) AS center, COALESCE(municipality_fr, municipality_nl, municipality_de) AS municipality_name, postal_info_objectid, municipality_objectid FROM addresses_complete where fid % 10 = 1 AND status NOT LIKE 'retired' GROUP BY COALESCE(municipality_fr, municipality_nl, municipality_de), postal_info_objectid, municipality_objectid" -lco GEOMETRY=AS_XY postals.fr.csv "$GPKG"
+          ogr2ogr -sql "$SELECT FROM addresses_complete WHERE status NOT LIKE 'retired' LIMIT 10000" -lco GEOMETRY=AS_XY addresses-extract.fr.csv "$GPKG"
+          ogr2ogr -sql "$SELECT FROM addresses_complete WHERE status NOT LIKE 'retired'" -lco GEOMETRY=AS_XY addresses-full.fr.csv "$GPKG"
+          for i in 1 2 3 4 5 6 7 8 9; do
+            ogr2ogr -sql "$SELECT FROM addresses_complete WHERE postal_info_objectid LIKE '${i}%' AND status NOT LIKE 'retired'" -lco GEOMETRY=AS_XY "addresses-${i}xxx.fr.csv" "$GPKG"
+          done
+          rm "$GPKG"
+          gzip -9 *.csv
+          ls -lh *.fr.csv.gz
+
+      - name: gitea release
+        if: gitea.ref_type == 'tag'
+        uses: https://github.com/akkuman/gitea-release-action@v1
+        with:
+          server_url: https://gitea.champs-libres.be
+          token: ${{ secrets.GITEA_TOKEN }}
+          name: ${{ gitea.ref_name }}
+          tag_name: ${{ gitea.ref_name }}
+          files: |-
+            *.fr.csv.gz