In early 2020, the developer behind Lockpick_RCM ceased development and removed the repositories following a crackdown by Nintendo via DMCAs (Digital Millennium Copyright Act) takedown requests. Nintendo argued that the tool facilitated piracy by bypassing copyright protection mechanisms.
This is rare, but happens on Mariko units (Switch V2/Lite/OLED) if you are not using a modchip with correct warmboot software. Fix: Mariko units cannot run lockpick_rcm.bin via the standard Fusée Gelée exploit unless booted via a chip. Use the Homebrew .nro version of Lockpick after booting into Atmosphere through Hekate. lockpick rcm.bin
If you dump the keys for your physical games to play on your PC, most morally-consistent hackers support this. If you download prod.keys from a Discord server to play pirated XCIs, you are a pirate, plain and simple. In early 2020, the developer behind Lockpick_RCM ceased
To understand lockpick_rcm.bin , you must first understand encryption. Fix: Mariko units cannot run lockpick_rcm