To add to this, “Open WebUI” needs to be included, as is and without modifications in all derivations. The term is also trade marked and as such, cannot be distributed without the trade mark owners approval…
https://trademarks.ipo.gov.uk/ipo-tmcase/page/Results/2/WO0000001844530
I don’t like Source-available software, especially when they’ve changed from a more open license to this.