>>42151994there are 2 methods so far. Both DOESN'T require you to hack your switch.
1) find the passcord of the dudu bot (multiples threads about that on /vp/ today). Open the website and turn on your game. In your game, throw a wishing piece in a den of your choice. You might want to do the exploit to get a purple beam (rare raid). When you have your purple beam, save your game in front of it. Fight the first raid pokemon and catch it. DON'T SAVE. Open a trade with the dudu's code, find the OT named Dudu and show him the mon you just caught. Don't complete the trade (Dudu will cancel trade when he sees your pokemon anyway). Check website, your OT might appear with a loooong code. Restart your game without saving, the beam will be back in the den. Download raid finder on github and put that long code in "seed" and check "Shiny : Star/Square", adjust the number to 10000 for the max frames and click generate. It gives you the amount of frames before your shiny. Take that amount and do -1 on it because your current day count as 1. Then do the time skip glitch the amount of day you calculated.
2) Download Xoroshiro-inverse, learn japanese, throw a wishing piece into a den blabla same thing as before, find a purple beam if you want. Then catch 3 pokemon on the 4th day of the den, 1 pokemon on the 5th day of the den and one on the 6th den of the den. Every time level them to 100 and calculate their IV. Write them down in the program. And let it run until it finds your seed. Then check on raid finder like with Dudu's bot
