These are Bash scripts that are executed during the invocation of Git hooks. The names of the top-level directories in this repository indicate whence the scripts originate (i.e., all files in personal-use/ originate from this repository and are used by Git hooks of other repositories on my local machine to automate workflows for repositories whose remotes belong to my personal GitHub account).
This is not an open source project. I've made the repository public mainly to evidence my skills in Git, Bash, GNU utilities, and workflow automation.