Young users without payment methods do not sideload binaries on a Nintendo DS.
If you’re hacking with a Nintendo DS in 2025 you were most likely a teenager in the 2000s/early 2010s, and you most certainly have a payment method.
Agree that OP is underselling their work at $5 - the next big psychological barrier after $0.99 is at $9.99, might as well go there