This omf theme is lefty variant of budspencer.
You can see functions/requirements of this theme on oh-my-fish/theme-budspencer.
This repository is based on 2018. 03. 06. Latest Version of budspencer theme.
If you face fish function error, copy __format_time.fish, __parse_current_folder.fish, __parse_git_branch.fish to ~/.config/fish/functions/
.