Turning regular noodles into no-boil noodles
It's true.  I've done it quite a few times, before the 'no boil' packaged varieties were commonly available (if they even existed ... this was ~15 years ago)

Unfortunately, I haven't done it for many years, so I'm quite out of practice.  (found out I had a problem with dairy, so lasagne isn't something I make anymore)

From what I remember, you needed to use more liquid than normal, and make sure that there was a wet layer directly above and below the noodles.  You also had a rather long cooking time, to give everything a chance to absorb.  (I want to say 350F for 1.5 to 2 hrs, but I generally went with 'til a knife went in easily, then put it under the broiler to get it bubbly)

I know there are also slow cooker recipes for lasagne that don't requite pre-boiling the noodles ... I'd just look for recipes online, as plenty of them exist.  Just look for ones from the 1990s, as that tended to be before companies were selling 'no boil' noodles.