diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..27d65a8
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+addons/*
+!addons/.placeholder
+config/*
+!config/.placeholder
diff --git a/Dockerfile b/Dockerfile
index ecc54bd..99d3500 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,26 +1,32 @@
-FROM ubuntu:18.04
+FROM alpine:3.12
 
 # Install required software and srb2kart
-RUN apt update && apt install -y software-properties-common
-RUN add-apt-repository -y ppa:kartkrew/srb2kart && apt update && apt install -y srb2kart
+RUN apk add --no-cache build-base make cmake wget git gcc tar zlib zlib-dev curl curl-dev sdl2-dev
 
 # Setup volumes
-VOLUME /config
 VOLUME /addons
 VOLUME /data
 
+# clone (my patched) sources
+RUN git clone https://github.com/vivlim/Kart-Public.git
+
+WORKDIR /Kart-Public
+
+RUN wget -qO- http://ppa.launchpad.net/kartkrew/srb2kart/ubuntu/pool/main/s/srb2kart-data/srb2kart-data_1.2-20200512035013.tar.xz | tar xJ
+RUN sed -i 's%midi_disabled = digital_disabled = true;%digital_disabled = true;%' src/sdl/sdl_sound.c
+RUN apk add --no-cache build-base
+RUN cmake -B_build -DSRB2_CONFIG_HWRENDER=OFF -DSRB2_CONFIG_SDL2_USEMIXER=OFF -DSRB2_CONFIG_STATIC_OPENGL=OFF -DSRB2_CONFIG_USEASM=OFF -DSRB2_CONFIG_YASM=OFF -DSRB2_CONFIG_HAVE_GME=OFF -DSRB2_CONFIG_HAVE_PNG=OFF
+RUN make -j`nproc` -C_build
+
 # Symlink for config
-RUN ln -sf /config/kartserv.cfg /usr/games/SRB2Kart/kartserv.cfg && ln -sf /addons /usr/games/SRB2Kart/addons
+RUN ln -sf /config/kartserv.cfg /Kart-Public/kartserv.cfg && ln -sf /addons /Kart-Public/addons
 
 # Expose network port
 EXPOSE 5029/udp
 
 # Copy bash script and fix execute permission
-COPY srb2kart.sh /usr/bin/srb2kart.sh
-RUN chmod a+x /usr/bin/srb2kart.sh
-
-# Set working directory
-WORKDIR /usr/games/SRB2Kart
+COPY srb2kart.sh /srb2kart.sh
+RUN chmod a+x /srb2kart.sh
 
 # Run script
-ENTRYPOINT ["srb2kart.sh"]
\ No newline at end of file
+ENTRYPOINT ["/srb2kart.sh"]
diff --git a/addons/.placeholder b/addons/.placeholder
new file mode 100644
index 0000000..e69de29
diff --git a/config/.placeholder b/config/.placeholder
new file mode 100644
index 0000000..e69de29
diff --git a/srb2kart.sh b/srb2kart.sh
index ebd86ef..0246c73 100644
--- a/srb2kart.sh
+++ b/srb2kart.sh
@@ -1,13 +1,16 @@
-#!/bin/bash
+#!/bin/sh
 
-cd /usr/games/SRB2Kart || exit
+EXTRA_FILES="$(ls /addons/*.kart) $(ls /addons/*.pk3)"
+INITIAL_MAP=map11
 
-ADDONS=$(ls /addons)
+mkdir -p /assets
 
-if [ -z "$ADDONS" ]; then
-    /usr/games/SRB2Kart/srb2kart -dedicated -config kartserv.cfg -home /data -file bonuschars.kart$*
-    exit
-fi
+echo "Copying base assets to /wads"
+cp -rv /Kart-Public/assets/installer/* /assets
 
-# Intentional word splitting
-/usr/games/SRB2Kart/srb2kart -dedicated -config kartserv.cfg -home /data $* -file $ADDONS -file bonuschars.kart
+echo "Copying addons over base assets"
+cp -rv /addons/* /assets
+
+echo "Launching with extra assets: bonuschars.kart $EXTRA_FILES"
+
+SRB2WADDIR=/assets /Kart-Public/_build/bin/srb2kart -dedicated -config /config/kartserv.cfg -home /data -file bonuschars.kart $EXTRA_FILES +map $INITIAL_MAP