Updated installation instructions

Dockerfile

@@ -1,33 +1,9 @@
 # Install development environment
-FROM golang:1.12.2-alpine as builder
-ENV GO111MODULE=on
-RUN apk add --no-cache git nodejs npm make gcc musl-dev && \
-	npm i -g typescript && \
-	go install github.com/aerogo/pack && \
-	go install github.com/aerogo/run && \
-	go install golang.org/x/tools/cmd/goimports && \
-	git clone --depth=1 https://github.com/animenotifier/database ~/.aero/db/arn
-WORKDIR /notify.moe
+FROM blitzprog/aero
+RUN git clone --progress --verbose --depth=1 https://github.com/animenotifier/database ~/.aero/db/arn
 
-# Download dependencies when go.mod or go.sum changes
-COPY go.mod go.sum ./
-RUN go mod download
-
-# Run Typescript compiler when scripts change
-COPY ./tsconfig.json ./
-COPY ./scripts ./scripts
-RUN tsc
-
-# Build
-COPY . ./
-RUN pack && \
-	go build
-
-# Production
-FROM alpine:latest as production
-RUN apk add --no-cache ca-certificates
-COPY --from=builder /root/.aero /root/.aero
-COPY --from=builder /notify.moe /notify.moe
-ENV ARN_ROOT=/notify.moe
-WORKDIR /notify.moe
-ENTRYPOINT ["./notify.moe"]
+# Expect ~/notify.moe to be mounted as a volume
+RUN cd ~/notify.moe && \
+	tsc && \
+	pack && \
+	go build