ARG DOCKER_IMAGE=alpine:3.14
FROM $DOCKER_IMAGE AS runtime
-RUN apk add --no-cache sqlite-libs curl gmp libstdc++ libgcc libpq luajit jsoncpp && \
+RUN apk add --no-cache sqlite-libs curl gmp libstdc++ libgcc libpq luajit jsoncpp zstd-libs && \
adduser -D minetest --uid 30000 -h /var/lib/minetest && \
chown -R minetest:minetest /var/lib/minetest