Smaller docker image for deployment

Dockerfile

@@ -1,10 +1,20 @@
-FROM gerbil/alpine
+FROM gerbil/alpine as builder
 
 RUN gxpkg install github.com/dlozeve/fancy
 
 COPY . .
 RUN ./build.ss lib
-RUN ./build.ss server
+RUN gxc -exe -static -cc-options -static -ld-options -lz -o server server.ss
+
+FROM alpine:latest
+
+RUN adduser -D appuser
+
+# Copy the server binary
+COPY --from=builder /src/server /
+
+USER appuser
+WORKDIR /home/appuser
 
 EXPOSE 8080
-CMD ["/src/server"]
+CMD ["/server"]