We ran both lightningd and lnd in the beginning. But when we had to move to new hardware after a couple of years, there was a weird edge case bug with c-lightning that prevented us from moving its database to a new box, so now we're left with just the lnd. ¯\_(ツ)_/¯
Discussion
(I've been thinking about migrating many times. But I guess the vanity of it still being one of the oldest nodes is strong. 😅)