If new commits use your work GitHub identity (for example lk-arv) instead of your personal account (LordKay-sudo), configure Git only inside this repository so it does not affect other projects:
cd path/to/your/clone
git config user.name "LordKay-sudo"
git config user.email "LordKay-sudo@users.noreply.github.com"
Replace user.email with your preferred personal address if you do not use GitHub’s users.noreply.github.com form.
Confirm before pushing:
git log -1 --format=fuller
This repo was initialized with the local author above so commits stay on your personal identity.