This is SARASA GOTHIC, a Chinese & Japanese programming font based on Iosevka and Source Han Sans.

You need Node.js 8.5 (or newer), otfcc, AFDKO and ttfautohint installed, then run:

npm install

after the NPM packages are installed, run

node build ttf

to build the TTF files, it would be in build/out directory.

To build TTC, type

node build ttc

instead, the files would be in build/ttc directory.