I installed Ignited via SideStore. No Jailbreaking necessary. Not computer tether. SideStore can renew the side loaded emulator every 7 days when on WiFi. The iPhone is perfect for DS emulation with a stylus.
(Ignited is a fork of Delta with more options, and SideStore is a fork of AltStore, with no computer tether needed)
I’m on iPhone 14 Pro and it works flawlessly! Even has fast forward (I think 125% without JIT). The emulator even has microphone and lid closing functions for the games that use it.
Edit: it was also working on my iPhone X with no issues.