Looking for an opening trainer

I have seen some tools for learning opening repertoires, such as on chesstempo and lucas chess, however it takes a long time to set up the replies to each of the moves and to do that you need to already know the best moves in the first place.

What I would like to see is a sort of a puzzle rush for openings. You get 3 or 5 minutes to do as many opening positions as possible and have to choose the best reply (or second or third best if sound enough).

I'd like to focus on getting the first 5 moves down pat across a wide range of openings, instead of wasting lots of time doing spaced repetition exercises on move 14 positions that never come up in real games.

It may be that all I need is a good PGN library for a broad and shallow opening repertoire. I would like to practice them with a clock though.

Hmm. That’s an interesting idea. 

Good idea

Now try to punish it!

Here is the opening… (I couldn’t post it at the previous comment because chess.com is buggy sometimes) 

Solved on the first try.

So I looking for a 1000 or so of these positions randomised and trying to solve as many as possible in 3 or 5 minutes.

Let's try creating random opening position puzzles...

Last one is pretty hard, but there's logic to it.

I also changed it a bit because taking with the bishop isn’t a good choice, following Stockfish’s principles.