u/Ares__1994

I am buying the rg ds for my daughter (7yo) for Christmas but I have never owned a handheld console like this before. I have used delta on my iPhone and am familiar with downloading/using roms.

The parts I am unsure of are what OS is the best for display and what OS is the best for functionality/ease of use. Mainly would be playing DS and older games.

I just want to make her gameplay experience the best without all the big frills as to not confuse her. I know I can find a YouTube video for just about anything and learn how to set them up on the console, but I would like some more input on what system would be best. Thank you!

I am currently in a Pediatric NP program and am about to start advanced pharmacology. Are there any YouTube pages/websites that are a strong recommend for additional learning? I just finished Advanced Patho and Ninja Nerd was a great assist. I plan on using it again for pharmacology but wondered if there are any other options as well. As a matter of fact, are there any recommendations for study materials that are free/relatively affordable for the rest of my program? Thank you all in advance!

Recently purchased a small 5x7s24in deep pool for my kids this summer. I purchased a Poolrx but have not placed it in yet. I am not using a pump/filter currently. What test strips would be best for the copper poolrx unit and the water itself? Is there a combo strip or should I just buy separate kits? Thank you!