Docker with Lazarus and packages installed to build Linux binaries for apiUi and apiUiServer.
docker pull apiui/apiuilazbuild
You can find apiUi and apiUiServer sources here.
Open a Powershell at the subfolder Lazarus of the apiUi clone.
docker run -it --rm -v ${PWD}:/home/lazarus apiuilazbuild apiUi/apiUi.lpi
docker run -it --rm -v ${PWD}:/home/lazarus apiuilazbuild apiUiServer/apiUiServer.lpi