test me pls

Dockerfile

@@ -1,6 +1,5 @@
 ## lint image
-## current as of 2022-01-25
-FROM golangci/golangci-lint:latest AS linter
+FROM golangci/golangci-lint:v1.50.1
 
 RUN mkdir -p /build
 WORKDIR /build
@@ -8,19 +7,7 @@ COPY ./ ./
 RUN golangci-lint run
 
 ## build image:
-# this is golang:1.17.6-buster as of 2022-01-27
-FROM golang@sha256:52a48e0239f4d645b20ac268a60361703afe7feb2df5697fa89f72052cb87a3e AS builder
-#FROM golang:1.16-buster AS builder
-
-ENV DEBIAN_FRONTEND noninteractive
-RUN apt update && apt install -y make bzip2 curl unzip
-
-# install newer protoc than what comes with buster
-ENV PB_REL https://github.com/protocolbuffers/protobuf/releases
-RUN curl -LO $PB_REL/download/v3.19.0/protoc-3.19.0-linux-x86_64.zip && \
-    unzip protoc-3.19.0-linux-x86_64.zip -d /usr/local
-
-RUN mkdir -p /build
+FROM sneak/mfer-build AS builder
 WORKDIR /build
 
 COPY go.mod .