How to install a script or resource on a FiveM server

Upload the resource's folder into resources (GamePanelFiles or SFTP), then add ensure resource_name to server.cfg.

Unzip the resource on your computer and check it has an fxmanifest.lua.
Upload the folder into resources (SFTP recommended for large packs).
FiveM server files: the resources folder and server.cfg
server.cfg: add ensure folder_name, then restart.
Error on startup: check the console, it's usually a missing dependency.

Common errors

"Couldn't find resource": the name after ensure must match the folder name exactly, capitals included.
Folder nested twice after unzipping (resources/my-resource/my-resource/): fxmanifest.lua must sit directly in the resource folder.