This is a great idea imo. As someone who has spent a lot of time volunteering at a shelter you can definitely learn a lot. Especially if they have some actual professionals on staff willing to share their wisdom.

Having a dog on a walk will absolutely increase the likelihood of a stray happening by to approach you though. Not saying that to scare you off or anything, but I think volunteering at the shelter will make you more confident around dogs, hopefully.

I messed around in portainer before and I think possibly OP is referring to their feature where it can watch a git repo and anytime a change occurs, it’ll try to do a pull and recreate the container.