As intricate and laborious as Fallout 76's nuke-launching system is, shrewd players are already finding shortcuts. One such shortcut is a website called NukaCrypt, created by player and Redditor Waffle_cop. NukaCrypt lets you punch in a partial launch keyword and the nuke code letters and numbers you've collected, and spits out possible codes that will get your nuke in the air.
Fallout 76's nuke codes are decrypted using a keyword cypher based on a unique word that changes every week. Letters of that keyword are revealed one-by-one over a week's time in the Enclave bunker, but with even just a few letters known NukaCrypt can still figure out possible working codes.
It's still not a simple process: each time you enter a code, you need a single-use keycard, so if NukaCrypt gives you ten possible codes you'll need 10 cards if you wind up needing to try all of them. In this video, for example, a player received 18 possible codes from NukaCrypt (and he and his friends collected 18 cards), but managed the launch on his fourth try. Collecting cards requires tracking down cargobots and shooting them out of the sky, plus dealing with the vertibot escorts it travels with. Even with NukaCrypt's help, it's a good amount of legwork.
Launching nukes isn't just cool to watch: the detonation can spawn powerful bosses carrying extremely rare crafting materials and loot, as we saw the other day when a group of players dropped a bomb on a scorchbeast nest. The radiation gave rise to a level Scorchbeast Queen who summoned a whole bunch of other scorched versions of monsters.