chore: make it skip env validation on build

Dockerfile

@@ -71,6 +71,7 @@ WORKDIR /app
 EXPOSE 3000
 
 ENV PORT 3000
+ENV HOSTNAME "0.0.0.0"
 
 # Install Prisma CLI
 RUN mkdir /home/nextjs/.npm-global
@@ -82,4 +83,4 @@ RUN npm cache clean --force
 
 # server.js is created by next build from the standalone output
 # https://nextjs.org/docs/pages/api-reference/next-config-js/output
-CMD ["/bin/sh", "-c", "prisma migrate deploy && HOSTNAME='0.0.0.0' node server.js"]
+CMD ["/bin/sh", "-c", "prisma migrate deploy && node server.js"]

env.mjs

@@ -95,4 +95,9 @@ export const env = createEnv({
     SENDGRID_VERIFIED_SENDER: process.env.SENDGRID_VERIFIED_SENDER,
     SENDGRID_API_KEY: process.env.SENDGRID_API_KEY,
   },
+  /**
+   * Run `build` or `dev` with `SKIP_ENV_VALIDATION` to skip env validation. This is especially
+   * useful for Docker builds.
+   */
+  skipValidation: !!process.env.SKIP_ENV_VALIDATION,
 })