Lenny's Mod Loader
Open the official download page
Installation
Install the loader files in the GTA root. Place compatible packages under lml without unnecessary wrapper folders.
Files and placement
Read the creator's included documentation and preserve the package's folder structure. Do not replace newer shared dependencies with older bundled copies without checking versions.
Test gate
A known LML package loads in Story Mode.
Common mistake
Installing several unknown plugins at once makes failures difficult to isolate.