rt，今天想给手写板安装一个rnote，说是要先安装flatpak，我安装完之后添加仓库出了问题，我输入 flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo 后出来一个 error: Can't load uri https://flathub.org/repo/flathub.flatpakrepo: Unacceptable TLS certificate 不知道为什么，求帮助QAQ
板块错误/违规紫衫