This is the lxd-ui patched for incus with patches from the zabbly repository[1].

It provides a systemd drop-in file to configure incus to use the UI.

Providing other architecture probably simply requires more dependencies to be installed in node_modules or providing different node_modules tarballs for different architectures. But I have not gotten it to work.

Zabbly now also has a fork of lxd-ui which could be used: https://github.com/zabbly/incus-ui-canonical
[1]: https://github.com/zabbly/incus