Using GOG Galaxy is recommended for easier management, though manual offline installers are also viable.
Master Installation Guide: Fallout London v1.02i v2.33r7 GOG Edition Executive Summary fallout london v102iv233r7 gog install
His quest began not with a stimpak, but with a series of precise digital maneuvers: : He ensured his library contained the Fallout 4 Game of the Year Edition Using GOG Galaxy is recommended for easier management,