new base (again)

Dockerfile

@@ -1,14 +1,16 @@
 # 1. Install dependencies and build the project
-FROM ubuntu:latest AS builder
+FROM alpine:latest AS builder
 
+# Enable Corepack
+RUN corepack enable
 
 # Set Yarn to the latest stable version
-RUN apt-get update && apt-get install -y nodejs yarn
+RUN apk add --no-cache nodejs yarn
 
 WORKDIR /app
 
 COPY package.json yarn.lock ./
-RUN yarn
+RUN yarn install --immutable
 
 COPY . .