adding self-hosting capabilities

Dockerfile

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+# Use a lightweight, official Go image as the base
+FROM golang:1.21-alpine AS builder
+
+# Set the working directory inside the image
+WORKDIR /app
+
+# Copy the source code to the working directory
+COPY . .
+
+# Build the Go application
+RUN go build -o main .
+
+# Create a new stage for the production image
+FROM alpine:latest
+
+# Copy the built binary from the builder stage
+COPY --from=builder /app/main /app/
+
+# Set the working directory
+WORKDIR /app
+
+# Expose the port the application will listen on
+EXPOSE 8888
+
+# Define the command to run the application
+CMD ["./main"]