diff --git a/.env.example b/.env.example
index c80139b..d64cf73 100644
--- a/.env.example
+++ b/.env.example
@@ -1,7 +1,8 @@
-BACKEND_URL=https://grafolean.com/api
+BACKEND_URL=https://app.grafolean.com/api
 BOT_TOKEN=
 JOBS_REFRESH_INTERVAL=120
 DB_DIR=
+# only matters if database is not started via docker-compose:
 DB_HOST=
 DB_DATABASE=
 DB_USERNAME=
diff --git a/.github/workflows/on_release.yml b/.github/workflows/on_release.yml
index de37545..bf2b83b 100644
--- a/.github/workflows/on_release.yml
+++ b/.github/workflows/on_release.yml
@@ -13,8 +13,18 @@ jobs:
     - name: Checkout source code
       uses: actions/checkout@v1
 
+    - name: Set up QEMU for more platforms
+      uses: docker/setup-qemu-action@v1
+      with:
+        platforms: all
 
-    - name: Deploy to Docker Hub
+    - name: Set docker build as alias to buildx (multiarch build)
+      uses: docker/setup-buildx-action@v1
+      id: buildx
+      with:
+        install: false
+
+    - name: Deploy to Docker Hub - multiplatform
       if: success() && startsWith(github.ref, 'refs/tags/v')
       env:
         GITHUB_REF_TAG: ${{ github.ref }}
@@ -22,14 +32,14 @@ jobs:
         DOCKER_IMAGE: grafolean/grafolean-snmp-bot
         DOCKER_USER: grafolean
         DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
+        BUILD_PLATFORMS: linux/amd64,linux/arm/v7,linux/arm64
       run: |
+        echo "Available plaftorms: ${{ steps.buildx.outputs.platforms }}"
+        echo "Building for plaftorms: $BUILD_PLATFORMS"
         export VERSION=${GITHUB_REF_TAG:10:50}
         echo "Version is $VERSION"
         export LAST_KNOWN_VERSION=`git tag -l --sort=-version:refname "v*.*.*" | grep -v rc | head -n 1 | tr -d '[:space:]'`
         echo "Last known version is $LAST_KNOWN_VERSION"
         docker login -u $DOCKER_USER -p $DOCKER_PASSWORD $DOCKER_REGISTRY
-        docker build -t "docker.io/$DOCKER_IMAGE:$VERSION" -t "docker.io/$DOCKER_IMAGE:latest" --build-arg VERSION=$VERSION --build-arg VCS_REF=$GITHUB_SHA --build-arg BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ') .
-        [ "$LAST_KNOWN_VERSION" == "$VERSION" ] && docker tag "docker.io/$DOCKER_IMAGE:$VERSION" "docker.io/$DOCKER_IMAGE:latest" || echo "NOT MARKING AS LATEST!"
-        docker images
-        docker push "docker.io/$DOCKER_IMAGE:$VERSION"
-        [ "$LAST_KNOWN_VERSION" == "$VERSION" ] && docker push "docker.io/$DOCKER_IMAGE:latest" || echo "NOT LATEST!"
+        [ "$LAST_KNOWN_VERSION" == "$VERSION" ] && echo "MARKING AS LATEST!" || echo "NOT MARKING AS LATEST!"
+        [ "$LAST_KNOWN_VERSION" == "$VERSION" ] && docker buildx build --push --platform "$BUILD_PLATFORMS" -t "docker.io/$DOCKER_IMAGE:$VERSION" -t "docker.io/$DOCKER_IMAGE:latest" --build-arg VERSION=$VERSION --build-arg VCS_REF=$GITHUB_SHA --build-arg BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ') . || docker buildx build --push --platform "$BUILD_PLATFORMS" -t "docker.io/$DOCKER_IMAGE:$VERSION" --build-arg VERSION=$VERSION --build-arg VCS_REF=$GITHUB_SHA --build-arg BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ') .
diff --git a/Dockerfile b/Dockerfile
index 52d0745..a26e7a7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -31,9 +31,9 @@ LABEL org.label-schema.vendor="Grafolean" \
 COPY --from=python-requirements /requirements.txt /requirements.txt
 RUN \
     apt-get update && \
-    apt-get install --no-install-recommends -q -y libsnmp-dev build-essential git && \
+    apt-get install --no-install-recommends -q -y libsnmp-dev build-essential libpq-dev python3-dev git snmp && \
     pip install --no-cache-dir -r /requirements.txt && \
-    apt-get purge -y build-essential && \
+    apt-get purge -y build-essential libpq-dev python3-dev && \
     apt-get clean autoclean && \
     apt-get autoremove --yes && \
     rm -rf /var/lib/{apt,dpkg,cache,log}/ && \
diff --git a/docker-compose.yml b/docker-compose.yml
index ab27071..f606f9b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -36,7 +36,7 @@ services:
 
 
   db:
-    image: postgres:12.1-alpine
+    image: timescale/timescaledb:latest-pg12
     container_name: grafolean-snmp-db
     volumes:
       # You should always save DB data to a host directory unless you are prepared to lose it. By default
@@ -50,7 +50,7 @@ services:
       - POSTGRES_PASSWORD=${DB_PASS:-admin}
     restart: always
     healthcheck:
-      test: ["CMD-SHELL", "pg_isready -h db -t 1 -q"]
+      test: ["CMD-SHELL", "pg_isready -h db -U ${DB_USER:-admin} -t 1 -q"]
       interval: 10s
       timeout: 5s
       retries: 3
diff --git a/snmpbot.py b/snmpbot.py
index 2e742c0..754412f 100644
--- a/snmpbot.py
+++ b/snmpbot.py
@@ -428,8 +428,8 @@ def jobs(self):
 
 
 def wait_for_grafolean(backend_url):
+    url = '{}/status/info'.format(backend_url)
     while True:
-        url = '{}/status/info'.format(backend_url)
         log.info("Checking Grafolean status...")
         try:
             r = requests.get(url)
@@ -440,7 +440,7 @@ def wait_for_grafolean(backend_url):
                 return
         except:
             pass
-        log.info("Grafolean backend not available / initialized yet, waiting.")
+        log.info(f"Grafolean backend (url: {url}) not available / initialized yet, waiting.")
         time.sleep(10)