Cut it out already...
Sky3DS can only run signed games -> no kernel level homebrew as you can't sign it.
So there is zero possibility to do that.
If you want to run the latest games you hopefully bought and want to copy and play on your 3ds to prevent any wear and tear you need a cfw as The Rela Jdbye said.
If you really want to do it and you are on 10.3 or lower you can try a downgrade, but use a hardmod or you may not recover from a brick.
If you're above, also do a hard mod and do the FIRM downgrade method, it's your choice, but Sky3DS blue is obsolete either way, there will be no update ever...