diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..9e09acf
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,14 @@
+FROM debian:stable
+
+RUN apt-get update && apt-get -y install jq curl wget coreutils locales
+
+RUN mkdir -p /dirkjan-bot/data /usr/bin
+RUN chmod +rwx /dirkjan-bot/data
+
+RUN locale-gen nl_NL.UTF-8
+
+ADD ./dirkjan-bot /dirkjan-bot/dirkjan-bot
+
+RUN ln -s /dirkjan-bot/dirkjan-bot /usr/bin/
+
+CMD /dirkjan-bot/dirkjan-bot
diff --git a/dirkjan-bot b/dirkjan-bot
index cb2637d..7dc277c 100755
--- a/dirkjan-bot
+++ b/dirkjan-bot
@@ -11,7 +11,7 @@ instance_url='https://botsin.space'
 here="$(here="$(readlink -f "${BASH_SOURCE[0]}")" && dirname "$here")" || exit $?
 
 get-dirkjan-img-url() {
-    url="$1"
+    local url="$1"
 
     curl "$url/" | grep img | grep -Po '(?<=src=")[^"]+"' | head -n 2 | tail -n 1
 }
@@ -27,7 +27,7 @@ download-dirkjan-img() (
     date="$(date +'%H-%M-%S %d-%m-%Y')"
 
     data_dir="$here/data"
-    mkdir -p "$data_dir"
+    [[ -d "$data_dir" ]] || mkdir -p "$data_dir"
 
     outfile="$data_dir/dirkjan $date.png"
 
@@ -37,7 +37,7 @@ download-dirkjan-img() (
 )
 
 api-curl() {
-    token="$1"
+    local token="$1"
 
     shift || return $?
 
@@ -46,7 +46,11 @@ api-curl() {
 
 img_file="$(download-dirkjan-img "$dirkjan_url" "$here")"
 
-bot_token="$(cat "$here/bot-token")" || exit $?
+if [[ -z "$DIRKJAN_BOT_TOKEN" ]]; then
+    bot_token="$(cat "$here/bot-token")" || exit $?
+else
+    bot_token="$DIRKJAN_BOT_TOKEN"
+fi
 
 upload_result="$(api-curl "$bot_token" -F file=@"$img_file" "$instance_url/api/v1/media")" || exit $?
 
@@ -59,7 +63,7 @@ echo ha
 format_string='{
 "status": "#dirkjan %s\\n\\n#dagelijks #nederlandstalig #strip #daily #dutch #comic",
 "media_ids": [ "%s" ],
-"visibility": "unlisted"
+"visibility": "public"
 }'
 
 printf -v json "$format_string" "$post_text" "$media_id"
diff --git a/dirkjan.png b/dirkjan.png
new file mode 100644
index 0000000..e93753d
Binary files /dev/null and b/dirkjan.png differ