Thanks all for various suggestions.
I agree that preferences are seldom modified.
I have a few personal bundles, but I decided to put them on GitHub. Every week or so, I review what I wrote and try to come up with how I can improve the workflow if it's repetitive. And I end up with writing small scripts and keep them as bundles.
What I'm afraid is that I forget to `push` my bundles Friday at work, and spend the entire weekend with outdated versions of my bundles.
Thanks,
Takaaki