I'd almost go as far as saying this is an A+ puzzle, it's not quite there though, so I'd have to give it an A.

I thought this was going to be too difficult but, after a few clues, I'm sure I'm going to Ace it.

A missed opportunity for 65 clues.

Notably missing from the clues is "a famous quote from Arthur Herbert Fonzarelli."

Or I'm just old.

Fantastic puzzle! I've got them all except "string whose SHA-256 hash ends in '…689510285e212385'". How am I ever supposed to guess that? What does Randall think I am, a supercomputer?

has anyone converted into a format we can load into https://squares.io/ ?

I'm stuck on 21 across - default paper size in Europe. Surely it should be "A4"?

I immediately knew the answer to 1 Down, but it still took a while to get the joke.