设置密码(已经设置过的跳过)
passwd
解锁只读权限
sudo steamos-readonly disable
添加下载源
sudo flatpak remote-add --if-not-exists sjtu
https://mirror.sjtu.edu.cn/flathub/flathub.flatpakrepo如果有问题,可以覆盖重置为官方镜像源
sudo flatpak remote-modify flathub --url=
https://flathub.org/repo