The thing I don't get is that based on the article the front-end is as bloated as the back-end.
That said there's an Owncloud version called Infinite Scale which is written in Go.[1] Honestly I tried to go that route but it's requirements are pretty opinionated (Ubuntu LTS 22.04 or 24.04 and lots of docker containers littering your system) but it looks like it's getting a lot of development.
Most of the OCIS team left to start OpenCloud, which is a OCIS fork. And it's hardware requirements are pretty tame. It's a very nice replacement for Nextcloud, if you don't need the Groupware features/Apps and are only looking for File sharing.
> it's requirements are pretty opinionated (Ubuntu LTS 22.04 or 24.04
Hm?
> This guide describes an installation of Infinite Scale based on Ubuntu LTS and docker compose. The underlying hardware of the server can be anything as listed below as long it meets the OS requirements defined in the Software Stack
https://doc.owncloud.com/ocis/next/depl-examples/ubuntu-comp...
The Software Stack section goes on to say it's just needs Docker, Docker Compose, shell access, and sudo.
Ubuntu and sudo are probably only mentioned because the guide walks you through installing docker and docker compose.