Lpmods hold header information about a mod. You can make a new folder inside Content\Modules for your mod. But that mod will not be recognized by the mod manager until you create a lpmod file for it. Without a lpmod file, all the rest of the files in that folder will not be read.

Lpmod is basically the equivalent of an esp file in Bethesda's games.

Lpmod follows a rigid structure as follows:

MODULE_UNIQUEID: vin_NTR  // unique ID for the mod, must match the subfolder's name under Content\Modules
MODULE_NAME: Official Netorare Module
MODULE_AUTHOR: Vinfamy
MODULE_LINK: www.loverslab.com
MODULE_DESCRIPTION: Netorare, cuckoldry, being cheated on - aka the most divisive fetish on the internet
MODULE_REQUIREMENTS: vin_VanillaRealistic  // unique IDs of the prerequisite mods, without all these mods enabled, this mod cannot be enabled.
LifePlay Revival addition:
MODULE_DEFAULT_ENABLED: true  // optional: the mod is enabled the first time the game finds it (otherwise a new mod starts disabled until the player ticks it in the Mod Manager). Used by lp_Revival, shipped with the game.