nixos/open-webui: try to fix the database readonly issue (#431395)

      after = [ "network.target" ];

      environment = {

        STATIC_DIR = ".";

        DATA_DIR = ".";

        HF_HOME = ".";

        SENTENCE_TRANSFORMERS_HOME = ".";

        STATIC_DIR = "${cfg.stateDir}/static";

        DATA_DIR = "${cfg.stateDir}/data";

        HF_HOME = "${cfg.stateDir}/hf_home";

        SENTENCE_TRANSFORMERS_HOME = "${cfg.stateDir}/transformers_home";

        WEBUI_URL = "http://localhost:${toString cfg.port}";

      }

      // cfg.environment;