solid start `npm run build` hangs in docker container

Trying to dockerize a solid application, built from solid start. It seems to hang at

npm run build

npm run build

step, at

solid-start rendering index.html...

solid-start rendering index.html...

. Here is the docker file im using

FROM node:alpine3.18 AS build
COPY package* .
RUN npm ci

COPY . .

ENV DOCKER=true
RUN npm run build
CMD ["npm", "run", "start"]

FROM node:alpine3.18 AS build
COPY package* .
RUN npm ci

COPY . .

ENV DOCKER=true
RUN npm run build
CMD ["npm", "run", "start"]