MindTheGapps is a GApps package that is required to be installed on a custom ROM.
Google Apps such as play store, Gmail, Face unlock etc are not part of any custom ROM. MindTheGapps installs basic google apps on a custom ROM.
MindTheGapps is developed by dev javelinanddart for LineageOS ROM builds because OpenGapps failed to be compatible sometimes.
This MindTheGapps is most ideal for LineageOS 15.1 builds but can be used for any other Android Oreo builds as well.
Build info MindTheGapps:
This is the MindTheGapps package build is for Android Oreo 8.1.0.
Build date: 8th August 2018
Supported Architecture: x86
This MindTheGapps is available in a zip file format which can only be installed using a custom recovery such as TWRP recovery.
To get these Gapps for other architectures, visit the following page: MindTheGapps for Oreo.