anchor.diff:  
   # Install node_modules
   # * to optionally copy lock files that _might_ _not_ exist
  -ADD package.json package-*.json yarn.* /tmp/
  +ADD package.json package-*.json yarn.* .yarn /tmp/
   RUN cd /tmp && apk --update add  --virtual native-dep \
     make gcc g++ python libgcc libstdc++ git && \
  -  npm install -g corepack && \
     corepack yarn install && \
  -  corepack yarn ls && \
     apk del native-dep
   RUN mkdir -p /app && cd /app && ln -nfs /tmp/node_modules
   RUN apk add bash
  
positive.code: ENV PATH "${PATH}:/app/node_modules/.bin"
  RUN corepack yarn run build
  
  FROM node:14.15.3-alpine
  
  RUN mkdir -p /app
  WORKDIR /app
  
negative.code: FROM node:16.13.0-alpine as build
  
  COPY package.json /app/package.json
  
  