How to install MSP-EXP432P401R

I want to use PlatformIO to program MSP-EXP432P401R LaunchPad devkit, and after googling around I found this: GitHub - energia/msp432-core: MSP432 Core and Framework . How do I install that to PlatformIO? There is Add new platform "timsp432" and support for TI MSP432 LaunchPad · Issue #147 · platformio/platformio-core · GitHub but it looks dead