Run minimal instance: https://fly.io/docs/about/pricing/
docker build . --platform linux/amd64 -t ghcr.io/lokalise-document-preview/docx-to-pdf-convert-with-libreoffice:latest
docker push ghcr.io/lokalise-document-preview/docx-to-pdf-convert-with-libreoffice:latest
flyctl --app docx-to-pdf-convert-with-libreoffice deploy .
https://k6.io/docs/getting-started/running-k6/
docker run \
--memory="256m" \
--cpus="1" \
-p 2121:2121 \
ghcr.io/lokalise-document-preview/docx-to-pdf-convert-with-libreoffice:latest
k6 run --vus 3 --duration 30s test/k6-test.js