Fix missing minify dependency and docker image

Dockerfile

@@ -1,10 +1,18 @@
 # Build
-FROM prologic/zs AS build
+FROM golang:alpine AS build
+
+RUN apk add --no-cache -U build-base git
 
 RUN mkdir -p /src
 
 WORKDIR /src
 
+# Copy Makefile
+COPY Makefile ./
+
+# Install deps
+RUN make deps
+
 # Copy content
 COPY . .
 
@@ -12,6 +20,6 @@ COPY . .
 RUN zs build
 
 # Runtime
-FROM prologic/zs AS runtime
+FROM prologic/static AS runtime
 
 COPY --from=build /src/.pub /data

Makefile

@@ -8,6 +8,7 @@ all: build
 
 deps:
 	@$(GOCMD) install go.mills.io/zs@latest
+	@$(GOCMD) install github.com/tdewolff/minify/v2/cmd/minify@latest
 
 dev : DEBUG=1
 dev : build