How to build a nuke in Minecraft

Hi there, You can make nuke in 3 ways in my knowledge. 1. Use the fill command to fill as much as TNT and blow them up. 2. Place a rail, place TNT minecarts as much as possible, and make another minecart with TNT to collide with them by connecting using a powered rail. 3. By using mods, you can craft various types of nukes of various power.