[Gys]

No mention of git hooks? Why install an extra tool for something that is already part of git? https://git-scm.com/book/en/v2/Customizing-Git-Git-Hooks

[bubblyworld]

Using git hooks directly almost always leaves you maintaining a small collection of bash scripts for installs, upgrades, config in the long run. Personally I'm fine with that but tooling can be nice, no?

(in case it's not clear though these tools are wrappers - under the hood it's still git hooks like you linked)

[robertlagrant]

It's a git hook manager.