diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..758238e
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,12 @@
+FROM php:latest
+RUN apt-get update && apt-get install cron -y
+COPY autosave.php /srv/autosave.php
+COPY autosave.cron /srv/autosave.cron
+COPY entrypoint.sh /srv/entrypoint.sh
+RUN chmod 0600 /srv/autosave.cron
+RUN chmod 0700 /srv/entrypoint.sh
+RUN crontab /srv/autosave.cron
+WORKDIR /srv
+RUN docker-php-ext-install bcmath
+RUN printenv | grep -v "no_proxy" >> /etc/environment
+ENTRYPOINT /srv/entrypoint.sh
diff --git a/autosave.cron b/autosave.cron
new file mode 100644
index 0000000..09bbf7e
--- /dev/null
+++ b/autosave.cron
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+0 * * * * /usr/local/bin/php /srv/autosave.php --account=$SRC_ACCOUNT --destination=$DST_ACCOUNT --amount=$AMOUNT --days=$DAYS > /proc/1/fd/1 2>/proc/1/fd/2
diff --git a/autosave.php b/autosave.php
index b32f6c8..f67af30 100644
--- a/autosave.php
+++ b/autosave.php
@@ -29,8 +29,9 @@ bcscale(12);
  * Keep in mind that running this script is entirely AT YOUR OWN RISK with ZERO GUARANTEES.
  */
 
-const EXCLUDED_TAGS = 'Direct debit';
-const FIREFLY_III_TOKEN = 'ey...';
+define('EXCLUDED_TAGS', (string)((getenv('EXCLUDED_TAGS') !== false) ? getenv('EXCLUDED_TAGS') : ''));
+define('FIREFLY_III_TOKEN', (string)((getenv('FIREFLY_III_TOKEN') !== false) ? getenv('FIREFLY_III_TOKEN') : 'ey...'));
+define('FIREFLY_III_URL', (string)((getenv('FIREFLY_III_URL') !== false) ? getenv('FIREFLY_III_URL') : 'https://firefly-iii.org'));
 
 /*
  * HERE BE MONSTERS
@@ -136,6 +137,7 @@ function createAutoSaveTransaction(array $group, array $arguments): void
                 ));
         return;
     }
+
     // create transaction:
     $submission = [
         'transactions' => [
@@ -151,6 +153,7 @@ function createAutoSaveTransaction(array $group, array $arguments): void
             ],
         ],
     ];
+
     // submit:
     $result  = postCurlRequest('/api/v1/transactions', $submission);
     $groupId = $result['data']['id'];
@@ -285,7 +288,7 @@ function getTransactions(int $accountId): array
                     $tags = $transaction['tags'];
                     $noExcludedTags = true;
                     foreach (explode(";", EXCLUDED_TAGS) as $excludedTag) {
-                        if (in_array($tags, $excludedTag)) {
+                        if (in_array($excludedTag, $tags)) {
                             $noExcludedTags = false;
                         }
                     }
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..746db0b
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,13 @@
+version: '3.3'
+services:
+  php-cron:
+    image: fireflyiii-autosave-cron
+    build: .
+    environment:
+      FIREFLY_III_TOKEN: 'ey...'
+      FIREFLY_III_URL: 'https://firefly-iii.org'
+      EXCLUDED_TAGS: 
+      SRC_ACCOUNT: 1
+      DST_ACCOUNT: 2
+      AMOUNT: 1
+      DAYS: 1
\ No newline at end of file
diff --git a/entrypoint.sh b/entrypoint.sh
new file mode 100644
index 0000000..b6d1c52
--- /dev/null
+++ b/entrypoint.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+printenv | grep -v "no_proxy" >> /etc/environment
+cron -f