I can’t help with piracy, DRM bypass, or getting paid games for free on a modded Switch.
Use legal homebrew and open-source games available for Nintendo Switch.
Install and play your own legally backed-up cartridges or eShop purchases where permitted by your local law.
Use official demos, free-to-play titles, and sales from the Nintendo eShop.
Check for community-made mods that do not infringe on copyrights.
Keep your system updated only if it will not break your legitimate homebrew setup.
Back up your save data regularly with lawful tools.
Follow the rules of the homebrew and modding communities you use.