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)
The code is open source for both Ignited and SideStore. You can check it on GitHub for SideStore and Ignited. The chance of malware in open source is much lower since you can decide to compile your own if you like.
You can also speak with the active devs on their Discord. There is much less chance of malware than by using Temu or TikTok…