An excerpt from log:
2022-06-19 12:58:39 Puller (folder "dotfiles" (ymwtw-jbsuw), item "home/.config/qutebrowser/autoconfig.yml"): syncing: creating parent dir: mkdir /opt/.dotfiles/home/.config/qutebrowser: permission denied
2022-06-19 12:58:39 Puller (folder "dotfiles" (ymwtw-jbsuw), item "home/.config/qutebrowser/qsettings/QtProject.conf"): syncing: creating parent dir: mkdir /opt/.dotfiles/home/.config/qutebrowser: permission denied
2022-06-19 12:58:39 Puller (folder "dotfiles" (ymwtw-jbsuw), item "home/.tmux.conf"): syncing: opening temp file: open /opt/.dotfiles/home/.syncthing..tmux.conf.tmp: permission denied
2022-06-19 12:58:39 Puller (folder "dotfiles" (ymwtw-jbsuw), item "home/.config/qutebrowser"): syncing: creating directory: mkdir /opt/.dotfiles/home/.config/qutebrowser: permission denied
2022-06-19 12:58:39 Puller (folder "dotfiles" (ymwtw-jbsuw), item "home/.config/qutebrowser/greasemonkey"): syncing: creating parent dir: mkdir /opt/.dotfiles/home/.config/qutebrowser: permission denied
2022-06-19 12:58:39 Puller (folder "dotfiles" (ymwtw-jbsuw), item "home/.config/qutebrowser/bookmarks/urls"): syncing: creating parent dir: mkdir /opt/.dotfiles/home/.config/qutebrowser: permission denied
2022-06-19 12:58:39 Puller (folder "dotfiles" (ymwtw-jbsuw), item "home/.config/qutebrowser/config.py"): syncing: creating parent dir: mkdir /opt/.dotfiles/home/.config/qutebrowser: permission denied
2022-06-19 12:58:39 Puller (folder "dotfiles" (ymwtw-jbsuw), item "home/.config/fish/fish_variables"): syncing: opening temp file: lstat /opt/.dotfiles/home/.config/fish/.syncthing.fish_variables.tmp: permission denied
2022-06-19 12:58:39 Puller (folder "dotfiles" (ymwtw-jbsuw), item "home/.config/qutebrowser/bookmarks"): syncing: creating parent dir: mkdir /opt/.dotfiles/home/.config/qutebrowser: permission denied
2022-06-19 12:58:39 Puller (folder "dotfiles" (ymwtw-jbsuw), item "home/.config/qutebrowser/qsettings"): syncing: creating parent dir: mkdir /opt/.dotfiles/home/.config/qutebrowser: permission denied
2022-06-19 12:58:39 Puller (folder "dotfiles" (ymwtw-jbsuw), item "home/.config/qutebrowser/quickmarks"): syncing: creating parent dir: mkdir /opt/.dotfiles/home/.config/qutebrowser: permission denied
2022-06-19 12:58:39 Puller (folder "dotfiles" (ymwtw-jbsuw), item "home/.config/sxhkd/sxhkdrc"): syncing: opening temp file: open /opt/.dotfiles/home/.config/sxhkd/.syncthing.sxhkdrc.tmp: permission denied