I'm super proud of how I implemented deeply nested comment permalinks in Loops.
It's a bit trickier than say Mastodon, where you just need the parent post context (and maybe children) since we only display comments in the video permalink.
And the UI I designed for this makes it really easy to view the comment and even the parent if applicable.
Parent: https://loops.video/v/d86zgftFT9?cid=d90x2bWT5f