Yes, you can remove the footer link, I'd just rather you didn't.
Ledger is a new project and to grow I'll need a few back links, so its really appreciated.
If you really must remove it, consider buying us a coffee (£10) - though it's still optional.
Removing Attribution
location: includes/footer.php - line 133
remove;
<!-- Right -->
<div class="small text-muted">
Powered by
<a target="_blank" href="https://runledger.org" class="text-decoration-none">
Ledger
</a>
</div>
Thank you for consideration and support, Lee