Nice one. Don't want to hack your post but I made something similar sometime ago https://github.com/kamranahmedse/git-standup
it does all of git-recall stuff (excluding diff) plus
- Multi repository usage
- Specify directory search depth
- Checking someone else's commits
- Commits from n days ago
- Changing the date format
- GPG
- Changing the Weekdays (e.g. SUN-THU)
- Fetch commits before showing standup